CN205092632U - Output voltage adjustable portable power source adaptation line - Google Patents
Output voltage adjustable portable power source adaptation line Download PDFInfo
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- CN205092632U CN205092632U CN201520935359.8U CN201520935359U CN205092632U CN 205092632 U CN205092632 U CN 205092632U CN 201520935359 U CN201520935359 U CN 201520935359U CN 205092632 U CN205092632 U CN 205092632U
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Abstract
Description
技术领域technical field
本实用新型涉及电源线技术领域，特别涉及一种输出电压可调的移动电源适配线。The utility model relates to the technical field of power cords, in particular to a mobile power adapter cord with adjustable output voltage.
背景技术Background technique
目前广泛使用的移动电源一般都是直流5V输出，只能提供给手机、平板电脑等5V输入的设备供电。然而，在实际生活中，有很多9V、12V、15V等电压输入的设备。这些设备在出厂时一般都会配一个交流转直流的电源适配器。对于一些不具备交流电源或者需要便携移动的场景，这些设备会因为没有电源输入而无法工作。At present, the widely used mobile power supply is generally DC 5V output, which can only provide power to devices with 5V input such as mobile phones and tablet computers. However, in real life, there are many devices with 9V, 12V, 15V and other voltage inputs. These devices are generally equipped with an AC-to-DC power adapter when they leave the factory. For some scenarios that do not have AC power or need to be portable, these devices will not work because there is no power input.
实用新型内容Utility model content
本实用新型的目的是公开一种输出电压可调的移动电源适配线，用于克服现有移动电源只能为部分额定功率的设备供电的问题。The purpose of the utility model is to disclose a mobile power supply adapter line with adjustable output voltage, which is used to overcome the problem that the existing mobile power supply can only supply power to equipment with a part of rated power.
本实用新型提供一种输出电压可调的移动电源适配线，包括：用于连接移动电源的移动电源连接头、电压转换电路和用于连接被供电设备的直流输出接头；The utility model provides a mobile power supply adapter line with adjustable output voltage, comprising: a mobile power supply connector for connecting to a mobile power supply, a voltage conversion circuit and a DC output connector for connecting to a powered device;
电压转换电路包括：输入端、带有可调电阻的DC-DC转换器和输出端；The voltage conversion circuit includes: an input terminal, a DC-DC converter with adjustable resistance and an output terminal;
移动电源连接头通过电压转换电路的输入端与DC-DC转换器的电源端相连，DC-DC转换器的直流输出端通过电压转换电路的输出端与直流输出接头相连。The mobile power connector is connected to the power supply end of the DC-DC converter through the input end of the voltage conversion circuit, and the DC output end of the DC-DC converter is connected to the DC output connector through the output end of the voltage conversion circuit.
在上述技术方案中，DC-DC转换器包括：DC-DC转换芯片、可调电阻、固定电阻和滤波电容；In the above technical solution, the DC-DC converter includes: a DC-DC conversion chip, an adjustable resistor, a fixed resistor and a filter capacitor;
DC-DC转换芯片的电源端与电压转换电路的输入端相连；可调电阻的一端与DC-DC转换芯片的直流输出端相连，另一端通过固定电阻后接地；滤波电容的一端与DC-DC转换芯片的直流输出端相连，另一端接地；The power supply end of the DC-DC conversion chip is connected to the input end of the voltage conversion circuit; one end of the adjustable resistor is connected to the DC output end of the DC-DC conversion chip, and the other end is grounded after passing through a fixed resistor; one end of the filter capacitor is connected to the DC-DC The DC output terminal of the conversion chip is connected, and the other terminal is grounded;
DC-DC转换芯片的反馈端与固定电阻和可调电阻之间的节点相连。The feedback terminal of the DC-DC conversion chip is connected to the node between the fixed resistor and the adjustable resistor.
在上述技术方案中，DC-DC转换芯片为TPS61093升压DC-DC转换器；DC-DC转换器还包括：电感；电感的一端与DC-DC转换芯片的电源端相连，另一端与DC-DC转换芯片的开关控制端相连；In the above technical solution, the DC-DC conversion chip is a TPS61093 step-up DC-DC converter; the DC-DC converter also includes: an inductor; one end of the inductor is connected to the power supply end of the DC-DC conversion chip, and the other end is connected to the DC-DC converter. The switch control terminal of the DC conversion chip is connected;
直流输出端的输出电压为：The output voltage at the DC output is:
Vo＝0.5V×(R1/R2+1)；Vo=0.5V×(R 1 /R 2 +1);
其中，VO为直流输出端的输出电压，R1为可调电阻的阻值，R2为固定电阻的阻值。Among them, V O is the output voltage of the DC output terminal, R 1 is the resistance value of the adjustable resistor, and R 2 is the resistance value of the fixed resistor.
在上述技术方案中，DC-DC转换芯片为降压DC-DC转换器。In the above technical solution, the DC-DC conversion chip is a step-down DC-DC converter.
在上述技术方案中，该移动电源适配线还包括电源延长线；电源延长线的两端分别与电压转换电路和直流输出接头相连。In the above technical solution, the mobile power adapter cable further includes a power extension cable; both ends of the power extension cable are respectively connected to the voltage conversion circuit and the DC output connector.
在上述技术方案中，该移动电源适配线还包括：用于调节可调电阻阻值的调节旋钮。In the above technical solution, the mobile power adapter cable further includes: an adjustment knob for adjusting the resistance value of the adjustable resistor.
在上述技术方案中，调节旋钮的外围刻有输出电压标度。In the above technical solution, the output voltage scale is engraved on the periphery of the adjusting knob.
本实用新型实施例提供的一种输出电压可调的移动电源适配线，通过电压转换电路可以让一个输出电压固定的移动电源给多种不同输入电压需求的设备供电，且可以手动调节输出电压的电压值，从而实现让一个输出电压固定的移动电源给多种不同输入电压需求的设备供电的目的。The embodiment of the utility model provides a mobile power supply adapter line with adjustable output voltage. Through the voltage conversion circuit, a mobile power supply with a fixed output voltage can supply power to a variety of devices with different input voltage requirements, and the output voltage can be manually adjusted. The voltage value, so as to achieve the purpose of allowing a mobile power supply with a fixed output voltage to supply power to a variety of devices with different input voltage requirements.
附图说明Description of drawings
图1是本实用新型实施例中输出电压可调的移动电源适配线的第一结构图；Fig. 1 is the first structural diagram of the mobile power adapter line with adjustable output voltage in the embodiment of the present invention;
图2是本实用新型实施例中电压转换电路的电路图；Fig. 2 is the circuit diagram of the voltage conversion circuit in the utility model embodiment;
图3是本实用新型实施例中电压转换电路的详细电路图；Fig. 3 is the detailed circuit diagram of the voltage conversion circuit in the utility model embodiment;
图4是本实用新型实施例中输出电压可调的移动电源适配线的第二结构图。Fig. 4 is a second structural diagram of the mobile power adapter cable with adjustable output voltage in the embodiment of the present invention.
具体实施方式detailed description
下面结合附图，对本实用新型的一个具体实施方式进行详细描述，但应当理解本实用新型的保护范围并不受具体实施方式的限制。A specific embodiment of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.
本实用新型实施例提供的一种输出电压可调的移动电源适配线，参见图1所示，包括：用于连接移动电源的移动电源连接头110、电压转换电路120和用于连接被供电设备的直流输出接头130。A mobile power adapter cable with adjustable output voltage provided by the embodiment of the present invention, as shown in Figure 1, includes: a mobile power connector 110 for connecting a mobile power source, a voltage conversion circuit 120 and a DC output connector 130 of the device.
其中，电压转换电路120包括：输入端VI、带有可调电阻R1的DC-DC转换器和输出端VOUT。具体的，参见图2所示，DC-DC转换器包括：DC-DC转换芯片、可调电阻R1、固定电阻R2和滤波电容C1。Wherein, the voltage conversion circuit 120 includes: an input terminal VI, a DC-DC converter with an adjustable resistor R1 and an output terminal VOUT. Specifically, as shown in FIG. 2 , the DC-DC converter includes: a DC-DC conversion chip, an adjustable resistor R1 , a fixed resistor R2 and a filter capacitor C1 .
DC-DC转换芯片的电源端VIN与电压转换电路120的输入端VI相连；可调电阻R1的一端与DC-DC转换芯片的直流输出端OUT相连，另一端通过固定电阻R2后接地；滤波电容C1的一端与DC-DC转换芯片的直流输出端OUT相连，另一端接地。同时，DC-DC转换芯片的反馈端FB与固定电阻R2和可调电阻R1之间的节点A相连。The power terminal VIN of the DC-DC conversion chip is connected to the input terminal VI of the voltage conversion circuit 120; one end of the adjustable resistor R1 is connected to the DC output terminal OUT of the DC-DC conversion chip, and the other end is grounded after passing through the fixed resistor R2; the filter capacitor One end of C1 is connected to the direct current output end OUT of the DC-DC conversion chip, and the other end is grounded. At the same time, the feedback terminal FB of the DC-DC conversion chip is connected to the node A between the fixed resistor R2 and the adjustable resistor R1.
移动电源连接头110通过电压转换电路120的输入端VI与DC-DC转换器的电源端VIN相连，DC-DC转换器的直流输出端OUT通过电压转换电路120的输出端VOUT与直流输出接头130相连。The mobile power connector 110 is connected to the power supply terminal VIN of the DC-DC converter through the input terminal VI of the voltage conversion circuit 120, and the DC output terminal OUT of the DC-DC converter is connected to the DC output connector 130 through the output terminal VOUT of the voltage conversion circuit 120. connected.
优选的，参见图1所示，该移动电源适配线还包括调节旋钮121，用于调节可调电阻R1的阻值。同时，根据可调电阻R1的阻值与输出端VOUT的输出电压之间的关系，在调节旋钮的外围刻有输出电压标度。Preferably, as shown in FIG. 1 , the mobile power adapter cable further includes an adjustment knob 121 for adjusting the resistance value of the adjustable resistor R1. At the same time, according to the relationship between the resistance value of the adjustable resistor R1 and the output voltage of the output terminal VOUT, the output voltage scale is engraved on the periphery of the adjusting knob.
本实用新型实施例提供的一种输出电压可调的移动电源适配线，通过电压转换电路可以让一个输出电压固定的移动电源给多种不同输入电压需求的设备供电，且可以手动调节输出电压的电压值，从而实现让一个输出电压固定的移动电源给多种不同输入电压需求的设备供电的目的。The embodiment of the utility model provides a mobile power supply adapter line with adjustable output voltage. Through the voltage conversion circuit, a mobile power supply with a fixed output voltage can supply power to a variety of devices with different input voltage requirements, and the output voltage can be manually adjusted. The voltage value, so as to achieve the purpose of allowing a mobile power supply with a fixed output voltage to supply power to a variety of devices with different input voltage requirements.
在本实用新型实施例中，DC-DC转换器可以为升压转换器，也可以为降压转换器。下面以升压转换器为例详细说明DC-DC转换器的结构和功能。In the embodiment of the present invention, the DC-DC converter may be a boost converter or a buck converter. The structure and function of the DC-DC converter will be described in detail below by taking the step-up converter as an example.
参见图3所示，DC-DC转换芯片选用德州仪器的电源芯片TPS61093升压DC-DC转换器；TPS61093是一款具有集成功率二极管和输入/输出隔离的低输入、最高17V输出的升压DC-DC转换器。As shown in Figure 3, the DC-DC conversion chip uses the power chip TPS61093 step-up DC-DC converter of Texas Instruments; TPS61093 is a low-input, maximum 17V output step-up DC with integrated power diodes and input/output isolation. -DC converter.
具体的，如图3所示，该DC-DC转换器还包括：电感L1；且电感L1的一端与DC-DC转换芯片的电源端VIN相连，另一端与DC-DC转换芯片的开关控制端SW相连。Specifically, as shown in Figure 3, the DC-DC converter also includes: an inductor L1; and one end of the inductor L1 is connected to the power supply terminal VIN of the DC-DC conversion chip, and the other end is connected to the switch control terminal of the DC-DC conversion chip SW connected.
此时，直流输出端的输出电压为：At this point, the output voltage at the DC output terminal is:
Vo＝0.5V×(R1/R2+1)；Vo=0.5V×(R 1 /R 2 +1);
其中，VO为直流输出端的输出电压，其单位为V，R1为可调电阻的阻值，R2为固定电阻的阻值。Among them, V O is the output voltage of the DC output terminal, and its unit is V, R 1 is the resistance value of the adjustable resistor, and R 2 is the resistance value of the fixed resistor.
由上式可知，R1＝R2×(Vo/0.5V-1)。固定R2＝10kΩ，当Vo＝9V时，R1＝170kΩ；当Vo＝12V时，R1＝230kΩ；当Vo＝15V时，R1＝290kΩ。通过调节这个可调电阻R1，移动电源输出的5V通过该适配线后可以得到9V、12V、15V等不同的电压，电压值可以通过手动选择。利用本实用新型实施例提供的移动电源适配线即可以实现9V、12V、15V等多种电压的输出。It can be known from the above formula that R 1 =R 2 ×(Vo/0.5V-1). Fixed R 2 =10kΩ, when Vo=9V, R 1 =170kΩ; when Vo=12V, R 1 =230kΩ; when Vo=15V, R 1 =290kΩ. By adjusting the adjustable resistor R1, the 5V output by the mobile power supply can get 9V, 12V, 15V and other different voltages after passing through the adapter line, and the voltage value can be selected manually. The output of various voltages such as 9V, 12V, 15V, etc. can be realized by using the mobile power adapter cable provided by the embodiment of the present invention.
优选的，如上所述，DC-DC转换芯片也可以为降压DC-DC转换器；具体可以采用TPS62065降压DC-DC转换器，通过调节可调电阻的阻值，具体可以实现2.5V，3.3V等电压输出。采用TPS62065降压DC-DC转换器时的具体电路与采用TPS61093升压DC-DC转换器时的电路(即图3所示的电路)相似，此处不做赘述。Preferably, as mentioned above, the DC-DC conversion chip can also be a step-down DC-DC converter; specifically, a TPS62065 step-down DC-DC converter can be used, and by adjusting the resistance value of the adjustable resistor, 2.5V can be realized specifically, 3.3V and other voltage output. The specific circuit when using the TPS62065 step-down DC-DC converter is similar to the circuit when using the TPS61093 step-up DC-DC converter (that is, the circuit shown in Figure 3), and will not be repeated here.
优选的，参见图4所示，本实用新型实施例提供的移动电源适配线还包括：电源延长线140。电源延长线140的两端分别与电压转换电路120和直流输出接头130相连。Preferably, as shown in FIG. 4 , the mobile power adapter cable provided by the embodiment of the present invention further includes: a power extension cable 140 . Two ends of the power extension line 140 are respectively connected to the voltage conversion circuit 120 and the DC output connector 130 .
本实用新型实施例提供的一种输出电压可调的移动电源适配线，通过电压转换电路可以让一个输出电压固定的移动电源给多种不同输入电压需求的设备供电，且可以手动调节输出电压的电压值，从而实现让一个输出电压固定的移动电源给多种不同输入电压需求的设备供电的目的。The embodiment of the utility model provides a mobile power supply adapter line with adjustable output voltage. Through the voltage conversion circuit, a mobile power supply with a fixed output voltage can supply power to a variety of devices with different input voltage requirements, and the output voltage can be manually adjusted. The voltage value, so as to achieve the purpose of allowing a mobile power supply with a fixed output voltage to supply power to a variety of devices with different input voltage requirements.
以上公开的仅为本实用新型的一个或多个具体实施例，但是，本实用新型并非局限于此，任何本领域的技术人员能思之的变化都应落入本实用新型的保护范围。The above disclosures are only one or more specific embodiments of the present utility model, but the present utility model is not limited thereto, and any changes conceivable by those skilled in the art should fall within the protection scope of the present utility model.
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| CN201520935359.8U CN205092632U (en) | 2015-11-20 | 2015-11-20 | Output voltage adjustable portable power source adaptation line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233484A (en) * | 2018-02-08 | 2018-06-29 | 银隆新能源股份有限公司 | Lithium titanate battery module mends electric power sourced electric system |
| CN114337269A (en) * | 2021-12-31 | 2022-04-12 | 南京微智新科技有限公司 | Dynamically adjustable power supply voltage output circuit and electronic equipment |
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2015
- 2015-11-20 CN CN201520935359.8U patent/CN205092632U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108233484A (en) * | 2018-02-08 | 2018-06-29 | 银隆新能源股份有限公司 | Lithium titanate battery module mends electric power sourced electric system |
| CN108233484B (en) * | 2018-02-08 | 2023-11-10 | 银隆新能源股份有限公司 | Lithium titanate battery module electricity supplementing power supply electric system |
| CN114337269A (en) * | 2021-12-31 | 2022-04-12 | 南京微智新科技有限公司 | Dynamically adjustable power supply voltage output circuit and electronic equipment |
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