CN110474545A - The direct current output control system of friction nanometer power generator with exchange output control system - Google Patents
The direct current output control system of friction nanometer power generator with exchange output control system Download PDFInfo
- Publication number
- CN110474545A CN110474545A CN201810441576.XA CN201810441576A CN110474545A CN 110474545 A CN110474545 A CN 110474545A CN 201810441576 A CN201810441576 A CN 201810441576A CN 110474545 A CN110474545 A CN 110474545A
- Authority
- CN
- China
- Prior art keywords
- output
- voltage
- current
- control system
- pulse signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000006243 chemical reaction Methods 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims description 32
- 239000004065 semiconductor Substances 0.000 claims 11
- 230000001052 transient effect Effects 0.000 claims 2
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 210000001367 artery Anatomy 0.000 claims 1
- 230000005611 electricity Effects 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000004146 energy storage Methods 0.000 description 14
- 230000015556 catabolic process Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009131 signaling function Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000003306 harvesting Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/293—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/02—Conversion of AC power input into DC power output without possibility of reversal
- H02M7/04—Conversion of AC power input into DC power output without possibility of reversal by static converters
- H02M7/12—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/217—Conversion of AC power input into DC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N1/00—Electrostatic generators or motors using a solid moving electrostatic charge carrier
- H02N1/04—Friction generators
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M5/00—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/02—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC
- H02M5/04—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters
- H02M5/22—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M5/275—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/293—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M5/2932—Conversion of AC power input into AC power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into DC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage, current or power
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
Abstract
本发明公开了一种摩擦纳米发电机的直流输出控制系统，系统包括电压电流调节模块、整流模块、脉冲信号转换模块。其中，电压电流调节模块包括一变压器，用于调节摩擦纳米发电机的输出电压和输出电流。整流模块由四个二极管组成的整流桥构成，能够将摩擦纳米发电机输出的交流信号整流为直流信号。脉冲信号转换模块包括一MOS管，用于将整流模块持续输出的直流信号转换为瞬时大电流脉冲信号。此外，本发明还提供了一种摩擦纳米发电机的交流输出控制系统。本发明能够将摩擦纳米发电机的输出信号转换为脉冲放电输出，并且能降低摩擦纳米发电机的输出阻抗，从而达到在低负载情况下具有更高输出效率和输出功率的目的。
The invention discloses a direct current output control system of a friction nanogenerator. The system includes a voltage and current adjustment module, a rectification module and a pulse signal conversion module. Wherein, the voltage and current regulation module includes a transformer, which is used to regulate the output voltage and output current of the triboelectric nanogenerator. The rectification module is composed of a rectification bridge composed of four diodes, which can rectify the AC signal output by the friction nanogenerator into a DC signal. The pulse signal conversion module includes a MOS transistor, which is used to convert the DC signal continuously output by the rectification module into an instantaneous high-current pulse signal. In addition, the invention also provides an AC output control system of the friction nanogenerator. The invention can convert the output signal of the frictional nanometer generator into a pulse discharge output, and can reduce the output impedance of the frictional nanometer generator, so as to achieve the purpose of having higher output efficiency and output power under low load conditions.
Description
技术领域technical field
本发明涉及一种用于摩擦纳米发电机的输出控制系统，特别涉及一种摩擦纳米发电机的直流输出控制系统，以及一种摩擦纳米发电机的交流输出控制系统，属于摩擦纳米发电技术领域。The invention relates to an output control system for a friction nanogenerator, in particular to a DC output control system for a friction nanogenerator and an AC output control system for a friction nanogenerator, belonging to the technical field of friction nanogenerator.
背景技术Background technique
电子器件的快速发展和广泛应用,为人类的生活带来极大的便利。但是如何在使用过程中为这些电子器件持续性地供电或者定期充电却是一个非常棘手的问题。为了解决这一问题,人们设计出了基于摩擦效应的摩擦纳米发电机(TENG)，用于收集生活中常见的微小能量，例如走路产生的振动、微风的吹拂、水的波动等。然而，摩擦纳米发电机的的输出具有高电压、低电流、高输出阻抗的特性，且输出信号不稳定，通常需要使用能量控制模块对摩擦纳米发电机的输出进行控制。The rapid development and wide application of electronic devices have brought great convenience to human life. But how to continuously supply power or periodically charge these electronic devices during use is a very difficult problem. In order to solve this problem, people have designed a triboelectric nanogenerator (TENG) based on the friction effect, which can be used to harvest the tiny energy common in life, such as the vibration generated by walking, the breeze blowing, the fluctuation of water, etc. However, the output of the triboelectric nanogenerator has the characteristics of high voltage, low current, and high output impedance, and the output signal is unstable, so it is usually necessary to use an energy control module to control the output of the triboelectric nanogenerator.
纳米发电机的输出控制系统有很多种，从最简单的整流桥到复杂的能量控制系统，但是整流桥只能简单的将交流信号转变为直流输出信号，不能对输出电压电流幅值进行调节，特别是针对摩擦纳米发电机的高输出电压、低输出电流、大输出电阻的输出特性无太大的调节作用。然而，已有的能量控制系统基本是基于有源器件的复杂集成电路，在调节摩擦纳米发电机的输出特性的同时消耗掉了摩擦纳米发电机产生的部分能量，甚至需要外接电源进行供电。There are many kinds of output control systems for nanogenerators, from the simplest rectifier bridge to complex energy control systems, but the rectifier bridge can only simply convert the AC signal into a DC output signal, and cannot adjust the output voltage and current amplitude. Especially for the output characteristics of high output voltage, low output current and large output resistance of the triboelectric nanogenerator, there is no great adjustment effect. However, the existing energy control systems are basically complex integrated circuits based on active devices, which consume part of the energy generated by the friction nanogenerator while adjusting the output characteristics of the friction nanogenerator, and even require an external power supply for power supply.
发明内容Contents of the invention
本发明为解决上述技术问题，并期望提供一种能够有效调节摩擦纳米发电机输出特性的控制系统，从而将摩擦纳米发电机的输出有效利用起来。In order to solve the above technical problems, the present invention expects to provide a control system capable of effectively adjusting the output characteristics of the friction nanogenerator, so as to effectively utilize the output of the friction nanogenerator.
本发明采用如下技术方案：一种摩擦纳米发电机的直流输出控制系统，所述系统包括：The present invention adopts the following technical scheme: a DC output control system of a frictional nanogenerator, said system comprising:
整流模块：用于将摩擦纳米发电机输出的交流信号整流为直流信号；Rectification module: used to rectify the AC signal output by the triboelectric nanogenerator into a DC signal;
脉冲信号转换模块：用于将整流模块持续输出的直流信号转换为瞬时大电流脉冲信号。Pulse signal conversion module: used to convert the DC signal continuously output by the rectifier module into an instantaneous high-current pulse signal.
进一步的，所述系统还包括：Further, the system also includes:
电压电流调节模块：用于调节摩擦纳米发电机的输出电压和输出电流，并降低摩擦纳米发电机的输出阻抗。Voltage and current regulation module: used to adjust the output voltage and output current of the triboelectric nanogenerator, and reduce the output impedance of the triboelectric nanogenerator.
所述电压电流调节模块的输入端连接摩擦纳米发电机的输出端，所述整流模块连接电压电流调节模块，所述电压电流调节模块的输出端连接脉冲信号转换模块。The input end of the voltage and current adjustment module is connected to the output end of the friction nanogenerator, the rectification module is connected to the voltage and current adjustment module, and the output end of the voltage and current adjustment module is connected to the pulse signal conversion module.
本发明还提供一种摩擦纳米发电机的交流输出控制系统，所述系统包括：The present invention also provides an AC output control system of a friction nanogenerator, said system comprising:
脉冲信号转换模块：用于将摩擦纳米发电机持续输出的交流信号转换为瞬时大电流脉冲信号。Pulse signal conversion module: used to convert the continuous output AC signal of the friction nanogenerator into an instantaneous high-current pulse signal.
进一步的，所述系统还包括：Further, the system also includes:
电压电流调节模块：用于调节摩擦纳米发电机的输出电压和输出电流，并降低摩擦纳米发电机的输出阻抗。Voltage and current regulation module: used to adjust the output voltage and output current of the triboelectric nanogenerator, and reduce the output impedance of the triboelectric nanogenerator.
所述电压电流调节模块的输入端连接摩擦纳米发电机的输出端，所述电压电流调节模块的输出端连接脉冲信号转换模块。The input end of the voltage and current adjustment module is connected to the output end of the friction nanogenerator, and the output end of the voltage and current adjustment module is connected to the pulse signal conversion module.
本发明采用如上技术方案所带来的有益效果是：本发明采用的输出控制系统能够将摩擦纳米发电机的输出信号转换为脉冲放电输出，并且能降低摩擦纳米发电机的输出阻抗，从而达到在低负载情况下具有更高输出效率和输出功率的目的。The beneficial effects brought by the above technical scheme in the present invention are: the output control system adopted in the present invention can convert the output signal of the frictional nanogenerator into a pulse discharge output, and can reduce the output impedance of the frictional nanogenerator, thereby achieving The purpose of having higher output efficiency and output power under low load conditions.
附图说明Description of drawings
图1是本发明摩擦纳米发电机的直流输出控制系统整体结构示意图；Fig. 1 is a schematic diagram of the overall structure of the DC output control system of the friction nanogenerator of the present invention;
图2是本发明摩擦纳米发电机的直流输出控制系统电路结构示意图；Fig. 2 is the schematic diagram of the circuit structure of the DC output control system of the friction nanogenerator of the present invention;
图3是摩擦纳米发电机的等效电路示意图；Fig. 3 is a schematic diagram of an equivalent circuit of a triboelectric nanogenerator;
图4是本发明摩擦纳米发电机的交流输出控制系统整体结构示意图；4 is a schematic diagram of the overall structure of the AC output control system of the friction nanogenerator of the present invention;
图5是本发明摩擦纳米发电机的交流输出控制系统电路结构示意图；5 is a schematic diagram of the circuit structure of the AC output control system of the friction nanogenerator of the present invention;
图6是本发明摩擦纳米发电机的交流输出控制系统的脉冲信号转换模块结构示意图；Fig. 6 is a schematic structural diagram of the pulse signal conversion module of the AC output control system of the friction nanogenerator of the present invention;
图7本发明摩擦纳米发电机的交流输出控制系统输出的单脉冲信号示意图；Fig. 7 is a schematic diagram of a monopulse signal output by the AC output control system of the friction nanogenerator of the present invention;
图8本发明摩擦纳米发电机的交流输出控制系统输出的双脉冲信号示意图。Fig. 8 is a schematic diagram of the double pulse signal output by the AC output control system of the triboelectric nanogenerator of the present invention.
具体实施方式Detailed ways
下面结合附图和实施例对本发明进行详细描述，但不作为对本发明的限定。The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments, but not as a limitation of the present invention.
实施例1Example 1
本发明公开了一种摩擦纳米发电机的直流输出控制系统，如图1所示，系统包括电压电流调节模块、整流模块、脉冲信号转换模块，所述电压电流调节模块的输入端连接摩擦纳米发电机的输出端，所述整流模块连接电压电流调节模块，所述电压电流调节模块的输出端连接脉冲信号转换模块。The invention discloses a DC output control system of a frictional nanometer generator. As shown in FIG. 1, the system includes a voltage and current adjustment module, a rectification module, and a pulse signal conversion module. The input end of the voltage and current adjustment module is connected to a frictional nanometer generator. The output end of the machine, the rectification module is connected to the voltage and current adjustment module, and the output end of the voltage and current adjustment module is connected to the pulse signal conversion module.
电压电流调节模块用于调节摩擦纳米发电机的输出电压和输出电流，并降低摩擦纳米发电机的输出阻抗。The voltage and current adjustment module is used to adjust the output voltage and output current of the triboelectric nanogenerator, and reduce the output impedance of the triboelectric nanogenerator.
整流模块用于将摩擦纳米发电机输出的交流信号整流为直流信号。The rectification module is used to rectify the AC signal output by the triboelectric nanogenerator into a DC signal.
脉冲信号转换模块：用于将整流模块持续输出的直流信号转换为瞬时大电流脉冲信号。Pulse signal conversion module: used to convert the DC signal continuously output by the rectifier module into an instantaneous high-current pulse signal.
在本实施例中，所述用于摩擦纳米发电机的直流输出控制系统能够满足实际应用中需要特定输入直流脉冲信号功能的设备或将直流脉冲信号以电压略高于电池额定电压的形式往蓄电池中充电，以进行进一步的能量分配。In this embodiment, the DC output control system for the triboelectric nanogenerator can meet the needs of equipment that needs a specific input DC pulse signal function in practical applications or send the DC pulse signal to the battery in the form of a voltage slightly higher than the rated voltage of the battery charging for further energy distribution.
在一个优选实施例中，如图2所示，脉冲信号转换模块包括一MOS管，所述MOS管的栅电极与源电极连接，所述MOS管的源电极与漏电极分别连接电压电流调节模块的两个输出端。In a preferred embodiment, as shown in Figure 2, the pulse signal conversion module includes a MOS transistor, the gate electrode of the MOS transistor is connected to the source electrode, and the source electrode and drain electrode of the MOS transistor are respectively connected to the voltage and current adjustment module of the two outputs.
在本实施例中，仅利用一个工作在无源状态的增强型MOS管MOSFET1来实现将摩擦纳米发电机输出的持续信号转变为脉冲信号。即MOS管主要是将摩擦纳米发电机的输出电荷由原来的持续输出转换为电荷经积累后快速释放，从而达到将持续小电流放电过程转换为瞬时大电流的脉冲放电过程。当MOS管的栅电极与源电极短接，即VGS＝0V时，源电极与漏电极分别连接电压电流调节模块的两个输出端。当摩擦纳米发电机的输出电压低于穿通击穿电压时，MOS管源电极与漏电极处于断开工作状态，电路断开，电荷在MOS管两个电极之间集聚；当摩擦纳米发电机的输出电压高于穿通击穿电压时，MOS管源电极与漏电极处于穿通击穿工作状态，电路导通，电荷快速通过在MOS管形成回路，从而达到将摩擦纳米发电机输出的持续信号转换为脉冲信号的目的。因此，所选MOS管的穿通击穿电压是系统最终的输出电压以及占空比的一个影响因素，此外，所用摩擦纳米发电机的实际输出电压也是一个影响因素。In this embodiment, only one enhanced MOS transistor MOSFET1 working in a passive state is used to convert the continuous signal output by the triboelectric nanogenerator into a pulse signal. That is to say, the MOS tube mainly converts the output charge of the triboelectric nanogenerator from the original continuous output to the rapid release of the charge after accumulation, so as to achieve the conversion of the continuous small current discharge process into the instantaneous high current pulse discharge process. When the gate electrode and the source electrode of the MOS transistor are short-circuited, that is, when VGS=0V, the source electrode and the drain electrode are respectively connected to two output terminals of the voltage and current adjustment module. When the output voltage of the triboelectric nanogenerator is lower than the breakdown voltage, the source electrode and the drain electrode of the MOS tube are in the disconnected working state, the circuit is disconnected, and the charge accumulates between the two electrodes of the MOS tube; when the triboelectric nanogenerator When the output voltage is higher than the punch-through breakdown voltage, the source electrode and the drain electrode of the MOS tube are in the punch-through breakdown working state, the circuit is turned on, and the charge quickly passes through the MOS tube to form a loop, so as to convert the continuous signal output by the triboelectric nanogenerator into The purpose of the pulse signal. Therefore, the punch-through breakdown voltage of the selected MOS tube is an influencing factor of the final output voltage and duty cycle of the system. In addition, the actual output voltage of the triboelectric nanogenerator used is also an influencing factor.
在一个优选实施例中，如图2所示，电压电流调节模块包括一变压器，所述变压器的输入端连接所述摩擦纳米发电机的输出端，用于降低摩擦纳米发电机的输出电压，并提高摩擦纳米发电机的输出电流。In a preferred embodiment, as shown in Figure 2, the voltage and current regulation module includes a transformer, the input end of the transformer is connected to the output end of the friction nanogenerator, and is used to reduce the output voltage of the friction nanogenerator, and Improve the output current of the triboelectric nanogenerator.
进一步的，电压电流调节模块还包括一储能电路，所述储能电路并联连接所述整流模块的输出端，用于降低摩擦纳米发电机的输出阻抗。Further, the voltage and current regulating module further includes an energy storage circuit, and the energy storage circuit is connected in parallel with the output terminal of the rectification module, so as to reduce the output impedance of the triboelectric nanogenerator.
进一步的，所述储能电路采用储能电容，所述储能电容为两只并联连接的电容或一只超级电容。Further, the energy storage circuit adopts an energy storage capacitor, and the energy storage capacitor is two capacitors connected in parallel or a super capacitor.
在本实施例中，变压器将摩擦纳米发电机直接输出的具有高电压低电流高内阻特性的交流信号(能量)进行电压降低、电流提高，并且通过与储能电路(特定的电容，如两只并联的电容或一只超级电容)进行并联，将摩擦纳米发电机的等效内阻抗降低，从而达到降低输出阻抗的目的。如图3所示，摩擦纳米发电机等效为一个电压源与电容串联，由于摩擦纳米发电机的工作特性，使得其输出信号为低频信号，ω＝2πf较小，此时内阻抗会很大，那么最大输出功率时的匹配负载电阻也会很大(10～1000MΩ)，即导致摩擦纳米发电机在低负载情况有效输出功率较低。此外，摩擦纳米发电机还具有高电压(>100V)低电流(1mA/cm2)的输出特性，采取变压器，将输出电压降低的同时提高输出电流。进一步的，在变压器输出端并联一个大电容，既可以实现能量存储的目的(类似于超级电容器)。此外，还可以通过电容并联公式C并＝C1+C2，即两电容并联的电容值接近更大电容的值，从而降低等效输出阻抗，即最大输出功率时的匹配负载电阻降低，从而达到在低负载情况下具有更高输出效率、输出功率的目的。也就是说，虽然并联电容会损失一部分摩擦纳米发电机的输出能量，但是在低负载情况下，这部分损失的能量小于从摩擦纳米发电机中输出的有效功率的增大值，即等效提高输出效率及功率。In this embodiment, the transformer reduces the voltage and increases the current of the AC signal (energy) directly output by the triboelectric nanogenerator with the characteristics of high voltage, low current and high internal resistance, and through the connection with the energy storage circuit (specific capacitance, such as two Only capacitors connected in parallel or a supercapacitor) are connected in parallel to reduce the equivalent internal impedance of the triboelectric nanogenerator, thereby achieving the purpose of reducing the output impedance. As shown in Figure 3, the friction nanogenerator is equivalent to a voltage source connected in series with a capacitor. Due to the working characteristics of the friction nanogenerator, its output signal is a low-frequency signal, and ω=2πf is small. At this time, the internal impedance will be very large, then the matching load resistance at the time of maximum output power will also be very large (10-1000MΩ), that is to say, the effective output power of the triboelectric nanogenerator is low under low load conditions. In addition, the triboelectric nanogenerator also has the output characteristics of high voltage (>100V) and low current (1mA/cm 2 ), and adopts a transformer to reduce the output voltage while increasing the output current. Furthermore, connecting a large capacitor in parallel at the output end of the transformer can realize the purpose of energy storage (similar to a supercapacitor). In addition, the parallel connection formula of capacitors C and = C 1 + C 2 can also be used, that is, the capacitance value of two capacitors connected in parallel is close to the value of a larger capacitor, thereby reducing the equivalent output impedance, that is, the matching load resistance at the maximum output power is reduced, so that To achieve the purpose of having higher output efficiency and output power under low load conditions. That is to say, although the parallel capacitance will lose a part of the output energy of the friction nanogenerator, under low load conditions, this part of the lost energy is less than the increased value of the effective power output from the friction nanogenerator, that is, the equivalent increase output efficiency and power.
在一个优选实施例中，整流模块由四个二极管组成的整流桥构成，用于将摩擦纳米发电机输出的交流信号整流为直流信号。In a preferred embodiment, the rectification module is composed of a rectification bridge composed of four diodes, which is used to rectify the AC signal output by the triboelectric nanogenerator into a DC signal.
在本实施例中，所选择的二极管具有最大正向电压、最大反向电压均高于变压器输出电压的最大值，且最大正向电流高于变压器输出电流最大值，使得所有二极管均工作在安全状态。即，二极管工作在截止状态时，不会因为输入电压过高而击穿；二极管导通时，不会因为电流电压过大而烧毁。此外，所选择的二极管应具有导通时能量消耗尽可能低的特性。In this embodiment, the selected diodes have a maximum forward voltage and a maximum reverse voltage higher than the maximum value of the transformer output voltage, and the maximum forward current is higher than the maximum value of the transformer output current, so that all diodes work in a safe state. That is, when the diode works in the cut-off state, it will not break down due to the high input voltage; when the diode is turned on, it will not be burned due to the excessive current and voltage. In addition, the diode should be chosen to have the lowest possible energy dissipation during conduction.
在一个优选实施例中，本发明所述系统还包括能量收集模块，用于对所述脉冲信号转换模块输出的大电流脉冲信号进行能量收集。本实施例中，能量收集模块采用蓄电池或者超级电容。In a preferred embodiment, the system of the present invention further includes an energy collection module, configured to collect energy from the high-current pulse signal output by the pulse signal conversion module. In this embodiment, the energy collection module adopts a storage battery or a supercapacitor.
在上述实施例中，本发明所采用的主要思想是通过工作在无源状态的增强型MOS管将摩擦纳米发电机连续输出的小电流积攒起来，然后快速释放，形成大电流的脉冲信号，从而有效提高输出效率。同时采用一系列方式，降低摩擦纳米发电机输出阻抗过大的问题，从而最终在希望的输出电压下得到一个大电流小输出阻抗的能量源。并且，采用变压器放大电流之后并联大电容的方式，有效降低系统输出阻抗，从而达到在低负载情况下系统具有更高输出效率和输出功率的目的。需要说明的是，在实际电路中，变压器、并联的电容以及MOS管的具体参数应根据实际需要以及摩擦纳米发电机的实际输出情况进行选择，使得最终输出的信号具有在需要输出电压时具有尽可能小的输出电阻，且输出控制系统的能量损耗最低，使得摩擦纳米发电机的输出能量尽可能多的施加到负载端。In the above embodiments, the main idea adopted by the present invention is to accumulate the small current continuously output by the friction nanogenerator through the enhanced MOS tube working in the passive state, and then release it quickly to form a pulse signal of large current, thereby Effectively improve output efficiency. At the same time, a series of methods are adopted to reduce the problem of excessive output impedance of the triboelectric nanogenerator, so that an energy source with large current and small output impedance can be finally obtained under the desired output voltage. In addition, the transformer amplifies the current and then connects a large capacitor in parallel to effectively reduce the system output impedance, so that the system has higher output efficiency and output power under low load conditions. It should be noted that in the actual circuit, the specific parameters of the transformer, the parallel capacitor and the MOS tube should be selected according to the actual needs and the actual output of the friction nanogenerator, so that the final output signal has as much power as possible when the output voltage is required. The possible small output resistance and the lowest energy loss of the output control system enable the output energy of the triboelectric nanogenerator to be applied to the load end as much as possible.
本发明虽然采用的是无源器件，但当电流通过时仍有能量损耗，即模块越多、器件越多时，对摩擦纳米发电机产生的能量的损耗也就越多，最终输出到负载端的能量更低。因此，针对不同的应用场景，可对系统模块进行增减，去除无用模块，以进一步提高系统的转换效率。Although the present invention uses passive devices, there is still energy loss when the current passes through, that is, when there are more modules and more devices, the loss of energy generated by the friction nanogenerator is also more, and the energy finally output to the load end lower. Therefore, according to different application scenarios, the system modules can be increased or decreased, and useless modules can be removed to further improve the conversion efficiency of the system.
实施例2Example 2
本发明公开了一种摩擦纳米发电机的交流输出控制系统，如图4所示，系统包括电压电流调节模块、脉冲信号转换模块，所述电压电流调节模块的输入端连接摩擦纳米发电机的输出端，所述电压电流调节模块的输出端连接脉冲信号转换模块。The invention discloses an AC output control system of a frictional nanometer generator. As shown in FIG. 4, the system includes a voltage and current adjustment module and a pulse signal conversion module, and the input end of the voltage and current adjustment module is connected to the output of the frictional nanometer generator. terminal, and the output terminal of the voltage and current regulation module is connected to the pulse signal conversion module.
电压电流调节模块用于调节摩擦纳米发电机的输出电压和输出电流，并降低摩擦纳米发电机的输出阻抗。The voltage and current adjustment module is used to adjust the output voltage and output current of the triboelectric nanogenerator, and reduce the output impedance of the triboelectric nanogenerator.
脉冲信号转换模块用于将摩擦纳米发电机持续输出的交流信号转换为瞬时大电流脉冲信号。The pulse signal conversion module is used to convert the continuous output AC signal of the triboelectric nanogenerator into an instantaneous high current pulse signal.
在本实施例中，所述用于摩擦纳米发电机的交流输出控制系统能够满足实际应用中需要特定输入交流脉冲信号功能的设备或将交流脉冲信号以电压略高于电池额定电压的形式往蓄电池中充电，以进行进一步的能量分配。In this embodiment, the AC output control system for the triboelectric nanogenerator can meet the needs of equipment that needs a specific input AC pulse signal function in practical applications or send the AC pulse signal to the battery in the form of a voltage slightly higher than the rated voltage of the battery charging for further energy distribution.
在一个优选实施例中，如图5所示，脉冲信号转换模块包括第一MOS管和第二MOS管，所述第一MOS管的栅电极与源电极连接，所述第二MOS管的栅电极与源电极连接，所述第一MOS管的漏电极与第二MOS管的源电极连接并引出第一接线端，所述第一MOS管的源电极与第二MOS管的漏电极连接并引出第二接线端；通过第一接线端和第二接线端，将所述脉冲信号转换模块与电压电流调节模块相串联。In a preferred embodiment, as shown in Figure 5, the pulse signal conversion module includes a first MOS transistor and a second MOS transistor, the gate electrode of the first MOS transistor is connected to the source electrode, and the gate electrode of the second MOS transistor The electrode is connected to the source electrode, the drain electrode of the first MOS transistor is connected to the source electrode of the second MOS transistor and leads to the first terminal, the source electrode of the first MOS transistor is connected to the drain electrode of the second MOS transistor and lead out the second connection terminal; through the first connection terminal and the second connection terminal, the pulse signal conversion module is connected in series with the voltage and current adjustment module.
在本实施例中，脉冲信号转换模块包括两个反向并联的MOS管，即第一MOS管MOSFET1和第二MOS管MOSFET2反向并联。将第一MOS管的栅电极与源电极连接，将第二MOS管的栅电极与源电极连接，使MOS管的VGS＝0V。然后将第一MOS管的漏电极与第二MOS管的源电极连接并引出接线端，将第一MOS管的源电极与第二MOS管的漏电极连接并引出接线端，最后将两接线端与摩擦纳米发电机和负载相串联。选择两个MOS管分别工作在穿通击穿状态，当一个MOS管穿通击穿时，另外一个MOS管正向截止状态，且MOS管的正向截止状态的最大电压高于摩擦纳米发电机的最大输出电压和另外一个MOS管的穿通击穿电压。两个MOS管的穿通击穿电压可以根据实际输出要求进行选择和调节。因此，所选MOS管的穿通击穿电压是最终的输出电压以及占空比的一个影响因素，此外，所用摩擦纳米发电机的实际输出电压也是一个影响因素。In this embodiment, the pulse signal conversion module includes two antiparallel MOS transistors, that is, the first MOS transistor MOSFET1 and the second MOS transistor MOSFET2 are antiparallel connected. Connect the gate electrode of the first MOS transistor to the source electrode, connect the gate electrode of the second MOS transistor to the source electrode, and make V GS of the MOS transistor =0V. Then connect the drain electrode of the first MOS transistor with the source electrode of the second MOS transistor and lead out the terminal, connect the source electrode of the first MOS transistor with the drain electrode of the second MOS transistor and lead out the terminal, and finally connect the two terminals It is connected in series with the triboelectric nanogenerator and the load. Select two MOS tubes to work in the punch-through breakdown state. When one MOS tube punches through and breaks down, the other MOS tube is in the forward cut-off state, and the maximum voltage of the forward cut-off state of the MOS tube is higher than the maximum voltage of the triboelectric nanogenerator. The output voltage and the breakdown voltage of another MOS tube. The breakdown voltage of the two MOS tubes can be selected and adjusted according to the actual output requirements. Therefore, the punch-through breakdown voltage of the selected MOS tube is an influencing factor of the final output voltage and duty cycle. In addition, the actual output voltage of the triboelectric nanogenerator used is also an influencing factor.
在一个优选实施例中，如图6所示，电压电流调节模块包括一变压器，所述变压器的输入端连接所述摩擦纳米发电机的输出端，用于降低摩擦纳米发电机的输出电压，并提高摩擦纳米发电机的输出电流。In a preferred embodiment, as shown in Figure 6, the voltage and current regulation module includes a transformer, the input end of the transformer is connected to the output end of the friction nanogenerator, and is used to reduce the output voltage of the friction nanogenerator, and Improve the output current of the triboelectric nanogenerator.
进一步的，电压电流调节模块还包括一储能电路，所述储能电路并联连接所述变压器的输出端，用于降低摩擦纳米发电机的输出阻抗。Further, the voltage and current regulating module further includes an energy storage circuit, and the energy storage circuit is connected in parallel with the output end of the transformer for reducing the output impedance of the triboelectric nanogenerator.
进一步的，所述储能电路采用储能电容，所述储能电容为两只并联连接的电容或一只超级电容。Further, the energy storage circuit adopts an energy storage capacitor, and the energy storage capacitor is two capacitors connected in parallel or a super capacitor.
在本实施例中，变压器将摩擦纳米发电机直接输出的具有高电压低电流高内阻特性的交流信号(能量)进行电压降低、电流提高，并且通过与储能电路(特定的电容，如两只并联的电容或一只超级电容)进行并联，将摩擦纳米发电机的等效内阻抗降低，从而达到降低输出阻抗的目的。摩擦纳米发电机等效为一个电压源与电容串联，由于摩擦纳米发电机的工作特性，使得其输出信号为低频信号，ω＝2πf较小，此时内阻抗会很大，那么最大输出功率时的匹配负载电阻也会很大(10～1000MΩ)，即导致摩擦纳米发电机在低负载情况有效输出功率较低。此外，摩擦纳米发电机还具有高电压(>100V)低电流(1mA/cm2)的输出特性，采取变压器，将输出电压降低的同时提高输出电流。进一步的，在变压器输出端并联一个大电容，既可以实现能量存储的目的(类似于超级电容器)。此外，还可以通过电容并联公式C并＝C1+C2，即两电容并联的电容值接近更大电容的值，从而降低等效输出阻抗，即最大输出功率时的匹配负载电阻降低，从而达到在低负载情况下具有更高输出效率、输出功率的目的。也就是说，虽然并联电容会损失一部分摩擦纳米发电机的输出能量，但是在低负载情况下，这部分损失的能量小于从摩擦纳米发电机中输出的有效功率的增大值，即等效提高输出效率及功率。In this embodiment, the transformer reduces the voltage and increases the current of the AC signal (energy) directly output by the triboelectric nanogenerator with the characteristics of high voltage, low current and high internal resistance, and through the connection with the energy storage circuit (specific capacitance, such as two Only capacitors connected in parallel or a supercapacitor) are connected in parallel to reduce the equivalent internal impedance of the triboelectric nanogenerator, thereby achieving the purpose of reducing the output impedance. The friction nanogenerator is equivalent to a voltage source connected in series with a capacitor. Due to the working characteristics of the friction nanogenerator, its output signal is a low-frequency signal, and ω=2πf is small. At this time, the internal impedance will be very large, then the matching load resistance at the time of maximum output power will also be very large (10-1000MΩ), that is to say, the effective output power of the triboelectric nanogenerator is low under low load conditions. In addition, the triboelectric nanogenerator also has the output characteristics of high voltage (>100V) and low current (1mA/cm 2 ), and adopts a transformer to reduce the output voltage while increasing the output current. Furthermore, connecting a large capacitor in parallel at the output end of the transformer can realize the purpose of energy storage (similar to a supercapacitor). In addition, the parallel connection formula of capacitors C and = C 1 + C 2 can also be used, that is, the capacitance value of two capacitors connected in parallel is close to the value of a larger capacitor, thereby reducing the equivalent output impedance, that is, the matching load resistance at the maximum output power is reduced, so that To achieve the purpose of having higher output efficiency and output power under low load conditions. That is to say, although the parallel capacitance will lose a part of the output energy of the friction nanogenerator, under low load conditions, this part of the lost energy is less than the increased value of the effective power output from the friction nanogenerator, that is, the equivalent increase output efficiency and power.
在一个优选实施例中，本发明所述系统还包括能量收集模块，用于对所述脉冲信号转换模块输出的大电流脉冲信号进行能量收集。本实施例中，能量收集模块采用蓄电池或者超级电容。In a preferred embodiment, the system of the present invention further includes an energy collection module, configured to collect energy from the high-current pulse signal output by the pulse signal conversion module. In this embodiment, the energy collection module adopts a storage battery or a supercapacitor.
在上述实施例中，本发明所采用的主要思想是通过工作在无源状态的增强型MOS管将摩擦纳米发电机连续输出的小电流积攒起来，然后快速释放，形成大电流的脉冲信号，从而有效提高输出效率。同时采用一系列方式，降低摩擦纳米发电机输出阻抗过大的问题，从而最终在希望的输出电压下得到一个大电流小输出阻抗的能量源。并且，采用变压器放大电流之后并联大电容的方式，有效降低系统输出阻抗，从而达到在低负载情况下系统具有更高输出效率和输出功率的目的。需要说明的是，在实际电路中，变压器、并联的电容以及MOS管的具体参数应根据实际需要以及摩擦纳米发电机的实际输出情况进行选择，使得最终输出的信号具有在需要输出电压时具有尽可能小的输出电阻，且输出控制系统的能量损耗最低，使得摩擦纳米发电机的输出能量尽可能多的施加到负载端。In the above embodiments, the main idea adopted by the present invention is to accumulate the small current continuously output by the friction nanogenerator through the enhanced MOS tube working in the passive state, and then release it quickly to form a pulse signal of large current, thereby Effectively improve output efficiency. At the same time, a series of methods are adopted to reduce the problem of excessive output impedance of the triboelectric nanogenerator, so that an energy source with large current and small output impedance can be finally obtained under the desired output voltage. In addition, the transformer amplifies the current and then connects a large capacitor in parallel to effectively reduce the system output impedance, so that the system has higher output efficiency and output power under low load conditions. It should be noted that in the actual circuit, the specific parameters of the transformer, the parallel capacitor and the MOS tube should be selected according to the actual needs and the actual output of the friction nanogenerator, so that the final output signal has as much power as possible when the output voltage is required. The possible small output resistance and the lowest energy loss of the output control system enable the output energy of the friction nanogenerator to be applied to the load end as much as possible.
本发明虽然采用的是无源器件，但当电流通过时仍有能量损耗，即模块越多、器件越多时，对摩擦纳米发电机产生的能量的损耗也就越多，最终输出到负载端的能量更低。因此，针对不同的应用场景，可对系统模块进行增减，去除无用模块，以进一步提高系统的转换效率。例如，在本发明中，如图5所示，可仅使用脉冲信号转换模块，以达到直接将摩擦纳米发电机的输出信号转换为脉冲信号的目的，即将连续的小电流积攒起来，然后快速释放，形成大电流的脉冲信号，从而有效提高输出效率。并且，尽可能少的使用电子器件，以求最大限度的减少系统的能量损耗。此外，如图6所示，还可以通过串并联电压电流调节模块，进一步调节输出电阻以及效率等。Although the present invention uses passive devices, there is still energy loss when the current passes through, that is, when there are more modules and more devices, the loss of energy generated by the friction nanogenerator is also more, and the energy finally output to the load end lower. Therefore, according to different application scenarios, the system modules can be increased or decreased, and useless modules can be removed to further improve the conversion efficiency of the system. For example, in the present invention, as shown in Figure 5, only the pulse signal conversion module can be used to directly convert the output signal of the triboelectric nanogenerator into a pulse signal, that is, to accumulate a continuous small current and then release it quickly , forming a pulse signal with a large current, thereby effectively improving the output efficiency. And, use as few electronic devices as possible, in order to minimize the energy loss of the system. In addition, as shown in FIG. 6 , the output resistance and efficiency can be further adjusted by connecting the voltage and current adjustment modules in series and parallel.
本发明所述系统最终输出脉冲信号的输出电压及占空比与所选MOS管的穿通击穿电压、摩擦纳米发电机的实际输出有关，如图7、图8所示。The output voltage and duty cycle of the final output pulse signal of the system of the present invention are related to the punch-through breakdown voltage of the selected MOS tube and the actual output of the friction nanogenerator, as shown in Fig. 7 and Fig. 8 .
以上实施例仅用以说明本发明的技术方案，而非对其限制。尽管参照上述实施例对本发明进行了详细的说明，本领域的普通技术人员应当理解，其依然可以对上述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换，而这些修改或者替换，并不使相应技术方案的本质脱离本发明各实施例技术所述的精神范围。The above embodiments are only used to illustrate the technical solution of the present invention, not to limit it. Although the present invention has been described in detail with reference to the above-mentioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above-mentioned embodiments, or perform equivalent replacements for some of the technical features, and these The modification or replacement does not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical descriptions of the various embodiments of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441576.XA CN110474545A (en) | 2018-05-10 | 2018-05-10 | The direct current output control system of friction nanometer power generator with exchange output control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810441576.XA CN110474545A (en) | 2018-05-10 | 2018-05-10 | The direct current output control system of friction nanometer power generator with exchange output control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110474545A true CN110474545A (en) | 2019-11-19 |
Family
ID=68503871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810441576.XA Pending CN110474545A (en) | 2018-05-10 | 2018-05-10 | The direct current output control system of friction nanometer power generator with exchange output control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110474545A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617803A (en) * | 2020-12-15 | 2021-04-09 | 南京邮电大学 | Wireless pulmonary function detection system and method |
| CN113162458A (en) * | 2021-05-17 | 2021-07-23 | 河南大学 | Power management method of universal friction nano generator |
| CN118481059A (en) * | 2024-07-15 | 2024-08-13 | 浙江大学 | Deceleration strip based on rotary friction nano generator and self-driven light-emitting method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452302A (en) * | 2007-12-05 | 2009-06-10 | 广州南科集成电子有限公司 | Constant-current source device with energy-conservation and over voltage protection |
| CN103825489A (en) * | 2014-02-27 | 2014-05-28 | 国家纳米科学中心 | Rotary friction power generator, voltage stabilization output circuit and power supply device |
| CN103913688A (en) * | 2013-01-07 | 2014-07-09 | 北大方正集团有限公司 | MOS transistor characteristic testing circuit and method |
| CN104901385A (en) * | 2015-06-19 | 2015-09-09 | 北京纳米能源与系统研究所 | Generator energy management device and power generation system |
-
2018
- 2018-05-10 CN CN201810441576.XA patent/CN110474545A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101452302A (en) * | 2007-12-05 | 2009-06-10 | 广州南科集成电子有限公司 | Constant-current source device with energy-conservation and over voltage protection |
| CN103913688A (en) * | 2013-01-07 | 2014-07-09 | 北大方正集团有限公司 | MOS transistor characteristic testing circuit and method |
| CN103825489A (en) * | 2014-02-27 | 2014-05-28 | 国家纳米科学中心 | Rotary friction power generator, voltage stabilization output circuit and power supply device |
| CN104901385A (en) * | 2015-06-19 | 2015-09-09 | 北京纳米能源与系统研究所 | Generator energy management device and power generation system |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112617803A (en) * | 2020-12-15 | 2021-04-09 | 南京邮电大学 | Wireless pulmonary function detection system and method |
| CN113162458A (en) * | 2021-05-17 | 2021-07-23 | 河南大学 | Power management method of universal friction nano generator |
| CN118481059A (en) * | 2024-07-15 | 2024-08-13 | 浙江大学 | Deceleration strip based on rotary friction nano generator and self-driven light-emitting method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102195462B (en) | Start-up circuit with high-tension power supply | |
| CN104734547B (en) | A boost unit Z-source inverter | |
| CN107134942A (en) | A kind of quasi- Z-source inverter of active switch capacitor | |
| CN110474545A (en) | The direct current output control system of friction nanometer power generator with exchange output control system | |
| CN107147303B (en) | A single-phase X-type interleaved three-level AC voltage regulating circuit | |
| CN105958855B (en) | A kind of quasi- Z-source inverter of high-gain | |
| CN206023577U (en) | A kind of DC voltage booster circuit and increasing apparatus | |
| CN116388596A (en) | A New Type of Coupled Inductor Supercharged Quasi-Z Source Inverter Circuit | |
| CN104052268A (en) | DC voltage conversion circuit | |
| CN103401465A (en) | Voltage-wide-range-adjustable buck-boost single-stage inverter circuit device | |
| CN103986362B (en) | A kind of Z source inverter circuit | |
| CN203722474U (en) | Quasi-Z-source DC-DC boost converter circuit | |
| CN206117540U (en) | A Switching Boost High-Gain Quasi-Z Source Inverter | |
| CN105978322B (en) | Switch capacitor type high-gain quasi Z source DC-DC converter | |
| CN205847086U (en) | A Switched Capacitor High-Gain Quasi-Z Source DC-DC Converter | |
| CN107645180A (en) | A kind of low starting current power-supply circuit for cable monitoring | |
| CN108899951B (en) | Super capacitor double closed-loop buck-boost charging control circuit based on voltage stabilization output type | |
| CN206498338U (en) | Modified Switching Power Supply input circuit | |
| CN201830141U (en) | DC-DC negative voltage conversion circuit | |
| CN105048827A (en) | Voltage multiplying rectification circuit | |
| CN108879919A (en) | For the piezoelectricity Electromagnetic heating energy accumulator energy management circuit of wireless sensor power supply | |
| CN105553283B (en) | A kind of control method of booster type straight convertor | |
| CN210111852U (en) | Switching power supply voltage-reducing and voltage-boosting conversion circuit | |
| CN110118903B (en) | Equivalent full power test circuit and control method of DC port of power electronic transformer | |
| CN207184070U (en) | A low starting current power-taking circuit for cable monitoring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191119 |