CN106160518A - Energy-saving power supply device - Google Patents
Energy-saving power supply device Download PDFInfo
- Publication number
- CN106160518A CN106160518A CN201510196544.4A CN201510196544A CN106160518A CN 106160518 A CN106160518 A CN 106160518A CN 201510196544 A CN201510196544 A CN 201510196544A CN 106160518 A CN106160518 A CN 106160518A
- Authority
- CN
- China
- Prior art keywords
- diode
- supply device
- energy
- power supply
- electrically connected
- 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
Landscapes
- Rectifiers (AREA)
Abstract
Description
技术领域technical field
本发明涉及一种电源供应装置，特别涉及一种节能型电源供应装置。The invention relates to a power supply device, in particular to an energy-saving power supply device.
背景技术Background technique
电源供应装置是一种非常常见的电子装置；电源供应装置是用以提供电源予负载装置，藉以驱动负载装置；因此，电源供应装置非常的重要。通常，电源供应装置是连接交流电源供应装置以接收交流电源。A power supply device is a very common electronic device; the power supply device is used to provide power to a load device to drive the load device; therefore, the power supply device is very important. Usually, the power supply device is connected to the AC power supply device to receive the AC power.
当交流电源供应装置或负载装置刚启动时，容易产生突波电流(inrushcurrent，或称涌浪电流)；因此，电源供应装置通常包含负温度系数热敏电阻(negative temperature coefficient thermistor)以抑制突波电流。当交流电源供应装置或负载装置刚启动时，负温度系数热敏电阻的温度低，因此阻抗很大，可以抑制突波电流的产生。电源供应装置的桥式整流器的二极管是用以限制电流的流向，因此电源供应装置的桥式整流器的二极管在抑制突波电流的问题上亦扮演重要角色。When the AC power supply device or load device is just started, it is easy to generate inrush current (inrush current, or inrush current); therefore, the power supply device usually includes a negative temperature coefficient thermistor (negative temperature coefficient thermistor) to suppress the surge current. When the AC power supply device or load device is just started, the temperature of the negative temperature coefficient thermistor is low, so the impedance is large, which can suppress the generation of surge current. The diodes of the bridge rectifier of the power supply device are used to limit the flow of current, so the diodes of the bridge rectifier of the power supply device also play an important role in suppressing the surge current.
当无突波电流产生之虞时，电源供应装置的桥式整流器的二极管(甚至负温度系数热敏电阻)会消耗大量的能源，此问题需要被解决以节能。When there is no fear of inrush current, the diodes of the bridge rectifier (even the NTC thermistor) of the power supply device will consume a lot of energy. This problem needs to be solved to save energy.
发明内容Contents of the invention
为改善上述现有技术的缺点，本发明的目的在于提供一种节能型电源供应装置。In order to improve the above-mentioned shortcomings of the prior art, the object of the present invention is to provide an energy-saving power supply device.
为达成本发明的上述目的，本发明的节能型电源供应装置包含：一桥式整流器；一二极管旁路电路，电性连接至该桥式整流器；及一控制电路，电性连接至该二极管旁路电路及该桥式整流器。其中该桥式整流器包含的多个二极管。其中在该控制电路接收一电源启动信号之后，该控制电路控制该二极管旁路电路，使得该些二极管的一部分被旁路以节能。In order to achieve the above object of the present invention, the energy-saving power supply device of the present invention includes: a bridge rectifier; a diode bypass circuit electrically connected to the bridge rectifier; and a control circuit electrically connected to the diode circuit and the bridge rectifier. Wherein the bridge rectifier includes a plurality of diodes. After the control circuit receives a power start signal, the control circuit controls the diode bypass circuit so that a part of the diodes are bypassed to save energy.
再者，如上所述的节能型电源供应装置，更包含：一负温度系数热敏电阻，电性连接至该二极管旁路电路及该桥式整流器。Furthermore, the above-mentioned energy-saving power supply device further includes: a negative temperature coefficient thermistor electrically connected to the diode bypass circuit and the bridge rectifier.
再者，如上所述的节能型电源供应装置，更包含：一直流转直流转换器，电性连接至该桥式整流器及该控制电路。Moreover, the above-mentioned energy-saving power supply device further includes: a DC-to-DC converter electrically connected to the bridge rectifier and the control circuit.
再者，如上所述的节能型电源供应装置，更包含：一滤波电容，电性连接至该桥式整流器及该直流转直流转换器。Furthermore, the above-mentioned energy-saving power supply device further includes: a filter capacitor electrically connected to the bridge rectifier and the DC-to-DC converter.
再者，如上所述的节能型电源供应装置，其中该桥式整流器包含：一第一二极管，电性连接至该二极管旁路电路及该控制电路。Furthermore, in the above-mentioned energy-saving power supply device, the bridge rectifier includes: a first diode electrically connected to the diode bypass circuit and the control circuit.
再者，如上所述的节能型电源供应装置，其中该桥式整流器更包含：一第二二极管，电性连接至该二极管旁路电路、该控制电路及该第一二极管。Furthermore, in the above-mentioned energy-saving power supply device, the bridge rectifier further includes: a second diode electrically connected to the diode bypass circuit, the control circuit and the first diode.
再者，如上所述的节能型电源供应装置，其中该桥式整流器更包含：一第三二极管，电性连接至该二极管旁路电路及该第一二极管。Furthermore, in the above-mentioned energy-saving power supply device, the bridge rectifier further includes: a third diode electrically connected to the diode bypass circuit and the first diode.
再者，如上所述的节能型电源供应装置，其中该桥式整流器更包含：一第四二极管，电性连接至该二极管旁路电路、该第二二极管及该第三二极管。Furthermore, in the above-mentioned energy-saving power supply device, the bridge rectifier further includes: a fourth diode electrically connected to the diode bypass circuit, the second diode and the third diode Tube.
再者，如上所述的节能型电源供应装置，其中该二极管旁路电路包含：一第一开关，电性连接至该桥式整流器及该控制电路。Furthermore, in the above-mentioned energy-saving power supply device, wherein the diode bypass circuit includes: a first switch electrically connected to the bridge rectifier and the control circuit.
再者，如上所述的节能型电源供应装置，其中该二极管旁路电路更包含：一第二开关，电性连接至该桥式整流器、该控制电路及该第一开关。Furthermore, in the above-mentioned energy-saving power supply device, the diode bypass circuit further includes: a second switch electrically connected to the bridge rectifier, the control circuit and the first switch.
本发明的功效在于，在该控制电路接收该电源启动信号之后(此时已无突波电流产生之虞)，该控制电路控制该二极管旁路电路，使得该桥式整流器的该些二极管的一部分被旁路以节能。The effect of the present invention is that after the control circuit receives the power start signal (at this time there is no fear of surge current), the control circuit controls the diode bypass circuit so that a part of the diodes of the bridge rectifier Bypassed to save power.
以下结合附图和具体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 specific embodiments, but not as a limitation of the present invention.
附图说明Description of drawings
图1为本发明的节能型电源供应装置的第一实施例方框图；Fig. 1 is the block diagram of the first embodiment of the energy-saving power supply device of the present invention;
图2为本发明的节能型电源供应装置的第二实施例方框图。FIG. 2 is a block diagram of the second embodiment of the energy-saving power supply device of the present invention.
其中，附图标记Among them, reference signs
节能型电源供应装置10Energy-saving power supply unit 10
交流电源供应装置20AC power supply unit 20
负载装置30load device 30
桥式整流器102Bridge Rectifier 102
二极管旁路电路104Diode bypass circuit 104
控制电路106control circuit 106
负温度系数热敏电阻108NTC Thermistor 108
直流转直流转换器110DC to DC Converter 110
滤波电容112Filter capacitor 112
开关单元114switch unit 114
开关控制单元116switch control unit 116
开关子单元118switch subunit 118
第一电阻120First resistor 120
第二电阻122Second resistor 122
第三电阻124The third resistor 124
电源202Power 202
第一二极管D1first diode D1
第二二极管D2second diode D2
第三二极管D3third diode D3
第四二极管D4Fourth diode D4
第一开关S1first switch S1
第二开关S2Second switch S2
具体实施方式detailed description
有关本发明的详细说明及技术内容，请参阅以下的详细说明和附图说明如下，而附图与详细说明仅作为说明之用，并非用于限制本发明。For the detailed description and technical content of the present invention, please refer to the following detailed description and accompanying drawings as follows, and the accompanying drawings and detailed description are for illustration purposes only, and are not intended to limit the present invention.
请参考图1，其为本发明的节能型电源供应装置的第一实施例方框图。一节能型电源供应装置10是应用于一交流电源供应装置20及一负载装置30。该节能型电源供应装置10包含一桥式整流器102、一二极管旁路电路104、一控制电路106、一负温度系数热敏电阻108、一直流转直流转换器110及一滤波电容112。该桥式整流器102包含多个二极管；亦即，该桥式整流器102包含一第一二极管D1、一第二二极管D2、一第三二极管D3及一第四二极管D4。该二极管旁路电路104包含一第一开关S1及一第二开关S2。Please refer to FIG. 1 , which is a block diagram of the first embodiment of the energy-saving power supply device of the present invention. An energy-saving power supply device 10 is applied to an AC power supply device 20 and a load device 30 . The energy-saving power supply device 10 includes a bridge rectifier 102 , a diode bypass circuit 104 , a control circuit 106 , a negative temperature coefficient thermistor 108 , a DC-to-DC converter 110 and a filter capacitor 112 . The bridge rectifier 102 includes a plurality of diodes; that is, the bridge rectifier 102 includes a first diode D1, a second diode D2, a third diode D3 and a fourth diode D4 . The diode bypass circuit 104 includes a first switch S1 and a second switch S2.
该二极管旁路电路104电性连接至该桥式整流器102；该控制电路106电性连接至该二极管旁路电路104及该桥式整流器102；该负温度系数热敏电阻108电性连接至该二极管旁路电路104及该桥式整流器102；该直流转直流转换器110电性连接至该桥式整流器102及该控制电路106；该滤波电容112电性连接至该桥式整流器102及该直流转直流转换器110。The diode bypass circuit 104 is electrically connected to the bridge rectifier 102; the control circuit 106 is electrically connected to the diode bypass circuit 104 and the bridge rectifier 102; the negative temperature coefficient thermistor 108 is electrically connected to the bridge rectifier The diode bypass circuit 104 and the bridge rectifier 102; the DC-to-DC converter 110 is electrically connected to the bridge rectifier 102 and the control circuit 106; the filter capacitor 112 is electrically connected to the bridge rectifier 102 and the DC Turn to DC converter 110.
该第一二极管D1电性连接至该二极管旁路电路104及该控制电路106；该第二二极管D2电性连接至该二极管旁路电路104、该控制电路106及该第一二极管D1；该第三二极管D3电性连接至该二极管旁路电路104及该第一二极管D1；该第四二极管D4电性连接至该二极管旁路电路104、该第二二极管D2及该第三二极管D3。该第一开关S1电性连接至该桥式整流器102及该控制电路106；该第二开关S2电性连接至该桥式整流器102、该控制电路106及该第一开关S1。The first diode D1 is electrically connected to the diode bypass circuit 104 and the control circuit 106; the second diode D2 is electrically connected to the diode bypass circuit 104, the control circuit 106 and the first and second diodes. Diode D1; the third diode D3 is electrically connected to the diode bypass circuit 104 and the first diode D1; the fourth diode D4 is electrically connected to the diode bypass circuit 104, the first diode D4 The second diode D2 and the third diode D3. The first switch S1 is electrically connected to the bridge rectifier 102 and the control circuit 106; the second switch S2 is electrically connected to the bridge rectifier 102, the control circuit 106 and the first switch S1.
在该控制电路106接收一电源启动信号之后(此时已无突波电流产生之虞)，该控制电路106控制该二极管旁路电路104，使得该些二极管(即该第一二极管D1、该第二二极管D2、该第三二极管D3及该第四二极管D4)的一部分(例如该第二二极管D2或该第四二极管D4)被旁路以节能，兹详述如后。其中，该电源启动信号是代表该直流转直流转换器110要进行工作(即此时已无突波电流产生之虞)。After the control circuit 106 receives a power start signal (at this time there is no fear of surge current), the control circuit 106 controls the diode bypass circuit 104 so that these diodes (ie the first diode D1, A part of the second diode D2, the third diode D3 and the fourth diode D4) (such as the second diode D2 or the fourth diode D4) is bypassed to save energy, It is described in detail below. Wherein, the power start signal means that the DC-to-DC converter 110 is going to work (that is, there is no risk of surge current at this time).
当该交流电源供应装置20或该负载装置30刚启动时(此时容易产生突波电流)，该第一开关S1及该第二开关S2是为不导通，使得该交流电源供应装置20所提供的一电源202是流经该负温度系数热敏电阻108以抑制突波电流。因为此时该负温度系数热敏电阻108的温度低，因此阻抗很大，可以抑制突波电流的产生。When the AC power supply device 20 or the load device 30 is just started (inrush current is likely to be generated at this time), the first switch S1 and the second switch S2 are non-conductive, so that the AC power supply device 20 A power supply 202 is provided to flow through the NTC thermistor 108 to suppress surge current. Because the temperature of the negative temperature coefficient thermistor 108 is low at this time, the impedance is large, and the generation of surge current can be suppressed.
此时该电源202的正半周路径为：该第一二极管D1、该直流转直流转换器110、该负载装置30、该负温度系数热敏电阻108、该第四二极管D4及该交流电源供应装置20。该电源202的负半周路径为：该第三二极管D3、该直流转直流转换器110、该负载装置30、该负温度系数热敏电阻108、该第二二极管D2及该交流电源供应装置20。At this time, the positive half cycle path of the power supply 202 is: the first diode D1, the DC-to-DC converter 110, the load device 30, the negative temperature coefficient thermistor 108, the fourth diode D4 and the AC power supply device 20. The negative half cycle path of the power supply 202 is: the third diode D3, the DC-to-DC converter 110, the load device 30, the NTC thermistor 108, the second diode D2 and the AC power supply Supply device 20 .
该电源启动信号可来自该直流转直流转换器110的一脉波宽度调变控制器(图1未示)或该交流电源供应装置20；在该控制电路106接收该电源启动信号之后(此时已无突波电流产生之虞)：The power start signal can come from a pulse width modulation controller (not shown in FIG. 1 ) of the DC-to-DC converter 110 or the AC power supply device 20; after the control circuit 106 receives the power start signal (at this time There is no risk of surge current):
该控制电路106在该电源202的正半周导通该第二开关S2而不导通该第一开关S1，此时路径为：该第一二极管D1、该直流转直流转换器110、该负载装置30、该第二开关S2及该交流电源供应装置20，因此节省了该负温度系数热敏电阻108及该第四二极管D4的能量消耗。The control circuit 106 turns on the second switch S2 and does not turn on the first switch S1 in the positive half cycle of the power supply 202. At this time, the path is: the first diode D1, the DC-to-DC converter 110, the The load device 30 , the second switch S2 and the AC power supply device 20 thus save energy consumption of the NTC thermistor 108 and the fourth diode D4 .
该控制电路106在该电源202的负半周导通该第一开关S1而不导通该第二开关S2，此时路径为：该第三二极管D3、该直流转直流转换器110、该负载装置30、该第一开关S1及该交流电源供应装置20，因此节省了该负温度系数热敏电阻108及该第二二极管D2的能量消耗。The control circuit 106 turns on the first switch S1 and does not turn on the second switch S2 in the negative half cycle of the power supply 202, and the path at this time is: the third diode D3, the DC-to-DC converter 110, the The load device 30 , the first switch S1 and the AC power supply device 20 thus save the energy consumption of the NTC thermistor 108 and the second diode D2 .
再者，为了避免零点切换的误动作，上述在该控制电路106接收该电源启动信号之后的流程可修改为：Furthermore, in order to avoid the misoperation of zero-point switching, the above-mentioned flow after the control circuit 106 receives the power start signal can be modified as follows:
该控制电路106在该电源202的正半周仍然不导通该第一开关S1；该控制电路106在该电源202的正半周且该电源202的电压绝对值大于一预设电压值(例如5伏特或10伏特)时才导通该第二开关S2。该控制电路106在该电源202的负半周仍然不导通该第二开关S2；该控制电路106在该电源202的负半周且该电源202的电压绝对值大于该预设电压值时才导通该第一开关S1。如此，即可避免零点切换的误动作。The control circuit 106 still does not turn on the first switch S1 in the positive half cycle of the power supply 202; the control circuit 106 is in the positive half cycle of the power supply 202 and the absolute value of the voltage of the power supply 202 is greater than a preset voltage value (for example, 5 volts or 10 volts), the second switch S2 is turned on. The control circuit 106 still does not turn on the second switch S2 in the negative half cycle of the power supply 202; the control circuit 106 is turned on only in the negative half cycle of the power supply 202 and the absolute value of the voltage of the power supply 202 is greater than the preset voltage value The first switch S1. In this way, the false operation of the zero point switching can be avoided.
但是，在该电源202的正半周且该电源202的电压绝对值不大于该预设电压值时，以及在该电源202的负半周且该电源202的电压绝对值不大于该预设电压值时，该控制电路106是不导通该第一开关S1及该第二开关S2；此时该电源202的正半周路径为：该第一二极管D1、该直流转直流转换器110、该负载装置30、该负温度系数热敏电阻108、该第四二极管D4及该交流电源供应装置20；该电源202的负半周路径为：该第三二极管D3、该直流转直流转换器110、该负载装置30、该负温度系数热敏电阻108、该第二二极管D2及该交流电源供应装置20。相较于无该预设电压值，浪费了该负温度系数热敏电阻108、该第四二极管D4及该第二二极管D2的能量消耗。该第四二极管D4及该第二二极管D2的能量消耗无法避免，但是该负温度系数热敏电阻108的能量消耗可以藉由下述实施例避免。However, in the positive half cycle of the power supply 202 and the absolute value of the voltage of the power supply 202 is not greater than the preset voltage value, and in the negative half cycle of the power supply 202 and the absolute value of the voltage of the power supply 202 is not greater than the preset voltage value , the control circuit 106 does not conduct the first switch S1 and the second switch S2; at this time, the positive half cycle path of the power supply 202 is: the first diode D1, the DC-to-DC converter 110, the load Device 30, the NTC thermistor 108, the fourth diode D4 and the AC power supply device 20; the negative half cycle path of the power supply 202 is: the third diode D3, the DC-to-DC converter 110 , the load device 30 , the NTC thermistor 108 , the second diode D2 and the AC power supply device 20 . Compared with without the preset voltage value, the energy consumption of the NTC thermistor 108 , the fourth diode D4 and the second diode D2 is wasted. The energy consumption of the fourth diode D4 and the second diode D2 cannot be avoided, but the energy consumption of the NTC thermistor 108 can be avoided by the following embodiments.
请参考图2，其为本发明的节能型电源供应装置的第二实施例方框图；图2所示的元件叙述与图1相似者，为简洁因素，于此不再赘述。该节能型电源供应装置10更包含一开关单元114及一开关控制单元116。该开关控制单元116包含一开关子单元118、一第一电阻120、一第二电阻122及一第三电阻124。Please refer to FIG. 2 , which is a block diagram of a second embodiment of the energy-saving power supply device of the present invention; the components shown in FIG. 2 are described similarly to those in FIG. 1 for the sake of brevity and will not be repeated here. The energy-saving power supply device 10 further includes a switch unit 114 and a switch control unit 116 . The switch control unit 116 includes a switch subunit 118 , a first resistor 120 , a second resistor 122 and a third resistor 124 .
该开关单元114可为例如但本发明不限定为一晶体管开关，例如一金氧半场效晶体管或一双极性接面晶体管，其功耗是远小于该负温度系数热敏电阻108的功耗；该开关子单元118可为例如但本发明不限定为一晶体管开关，例如一金氧半场效晶体管或一双极性接面晶体管，其功耗远小于该负温度系数热敏电阻108的功耗。The switch unit 114 can be, for example, but the present invention is not limited to a transistor switch, such as a metal oxide semiconductor field effect transistor or a bipolar junction transistor, and its power consumption is much smaller than that of the NTC thermistor 108 The switch subunit 118 can be, for example, but the present invention is not limited to a transistor switch, such as a metal oxide semiconductor field effect transistor or a bipolar junction transistor, and its power consumption is much smaller than the work of the negative temperature coefficient thermistor 108 consumption.
该开关单元114电性连接至该负温度系数热敏电阻108；该开关控制单元116电性连接至该开关单元114及该控制电路106；该开关子单元118电性连接至该开关单元114及该控制电路106；该第一电阻120电性连接至该开关子单元118及该控制电路106；该第二电阻122电性连接至该开关子单元118及该第一电阻120；该第三电阻124电性连接至该开关子单元118及该开关单元114。The switch unit 114 is electrically connected to the NTC thermistor 108; the switch control unit 116 is electrically connected to the switch unit 114 and the control circuit 106; the switch subunit 118 is electrically connected to the switch unit 114 and The control circuit 106; the first resistor 120 is electrically connected to the switch subunit 118 and the control circuit 106; the second resistor 122 is electrically connected to the switch subunit 118 and the first resistor 120; the third resistor 124 is electrically connected to the switch subunit 118 and the switch unit 114 .
当该交流电源供应装置20或该负载装置30刚启动时(此时容易产生突波电流)，该第一开关S1、该第二开关S2及该开关单元114是为不导通，使得该交流电源供应装置20所提供的该电源202是流经该负温度系数热敏电阻108以抑制突波电流。因为此时该负温度系数热敏电阻108的温度低，因此阻抗很大，可以抑制突波电流的产生。When the AC power supply device 20 or the load device 30 is just started (inrush current is likely to be generated at this time), the first switch S1, the second switch S2 and the switch unit 114 are non-conductive, so that the AC The power 202 provided by the power supply device 20 flows through the NTC thermistor 108 to suppress surge current. Because the temperature of the negative temperature coefficient thermistor 108 is low at this time, the impedance is large, and the generation of surge current can be suppressed.
在该控制电路106接收该电源启动信号之后(此时已无突波电流产生之虞)：After the control circuit 106 receives the power start signal (there is no danger of surge current at this time):
该控制电路106在该电源202的正半周不导通该第一开关S1；该控制电路106在该电源202的正半周且该电源202的电压绝对值大于该预设电压值时导通该第二开关S2。该控制电路106在该电源202的负半周不导通该第二开关S2；该控制电路106在该电源202的负半周且该电源202的电压绝对值大于该预设电压值时导通该第一开关S1。如此，即可避免零点切换的误动作。The control circuit 106 does not turn on the first switch S1 in the positive half cycle of the power supply 202; the control circuit 106 turns on the first switch S1 in the positive half cycle of the power supply 202 and the absolute voltage value of the power supply 202 is greater than the preset voltage Two switches S2. The control circuit 106 does not turn on the second switch S2 in the negative half cycle of the power supply 202; the control circuit 106 turns on the second switch S2 in the negative half cycle of the power supply 202 and the absolute voltage value of the power supply 202 is greater than the preset voltage A switch S1. In this way, the false operation of the zero point switching can be avoided.
在该电源202的正半周且该电源202的电压绝对值不大于该预设电压值时，该控制电路106是不导通该第二开关S2但该控制电路106是控制该开关控制单元116以导通该开关单元114；该开关单元114的阻抗远小于(或小于)该负温度系数热敏电阻108的阻抗，因此该负温度系数热敏电阻108被旁路而几乎不导通，使得此时的路径为：该第一二极管D1、该直流转直流转换器110、该负载装置30、该开关单元114、该第四二极管D4及该交流电源供应装置20。因此相较于无该开关单元114及该开关控制单元116，节省了该负温度系数热敏电阻108的能量消耗。In the positive half cycle of the power supply 202 and the absolute value of the voltage of the power supply 202 is not greater than the preset voltage value, the control circuit 106 does not conduct the second switch S2 but the control circuit 106 controls the switch control unit 116 to The switching unit 114 is turned on; the impedance of the switching unit 114 is much smaller (or smaller) than the impedance of the negative temperature coefficient thermistor 108, so the negative temperature coefficient thermistor 108 is bypassed and almost non-conductive, so that the The path during this time is: the first diode D1 , the DC-to-DC converter 110 , the load device 30 , the switch unit 114 , the fourth diode D4 and the AC power supply device 20 . Therefore, compared with without the switch unit 114 and the switch control unit 116 , the energy consumption of the NTC thermistor 108 is saved.
在该电源202的负半周且该电源202的电压绝对值不大于该预设电压值时，该控制电路106是不导通该第一开关S1但该控制电路106是控制该开关控制单元116以导通该开关单元114；该开关单元114的阻抗远小于(或小于)该负温度系数热敏电阻108的阻抗，因此该负温度系数热敏电阻108被旁路而几乎不导通，使得此时的路径为：该第三二极管D3、该直流转直流转换器110、该负载装置30、该开关单元114、该第二二极管D2及该交流电源供应装置20。因此相较于无该开关单元114及该开关控制单元116，节省了该负温度系数热敏电阻108的能量消耗。In the negative half cycle of the power supply 202 and the absolute value of the voltage of the power supply 202 is not greater than the preset voltage value, the control circuit 106 does not conduct the first switch S1 but the control circuit 106 controls the switch control unit 116 to The switching unit 114 is turned on; the impedance of the switching unit 114 is much smaller (or smaller) than the impedance of the negative temperature coefficient thermistor 108, so the negative temperature coefficient thermistor 108 is bypassed and almost non-conductive, so that the The path during this time is: the third diode D3 , the DC-to-DC converter 110 , the load device 30 , the switch unit 114 , the second diode D2 and the AC power supply device 20 . Therefore, compared with without the switch unit 114 and the switch control unit 116 , the energy consumption of the NTC thermistor 108 is saved.
本发明的主要功效在于，在该控制电路106接收该电源启动信号之后(此时已无突波电流产生之虞)，该控制电路106控制该二极管旁路电路104，使得该桥式整流器102的该些二极管的一部分被旁路以节能；此时该负温度系数热敏电阻108亦被旁路以节能。再者，即便为了避免零点切换的误动作而设定了该预设电压值，本发明仍可在该电源202的电压绝对值不大于该预设电压值时旁路该负温度系数热敏电阻108以节能。The main effect of the present invention is that after the control circuit 106 receives the power start signal (there is no fear of surge current generation), the control circuit 106 controls the diode bypass circuit 104 so that the bridge rectifier 102 Some of the diodes are bypassed to save energy; at this time, the NTC thermistor 108 is also bypassed to save energy. Furthermore, even if the preset voltage value is set in order to avoid false operation of zero-point switching, the present invention can still bypass the NTC thermistor when the absolute value of the voltage of the power supply 202 is not greater than the preset voltage value 108 to save energy.
当然，本发明还可有其它多种实施例，在不背离本发明精神及其实质的情况下，熟悉本领域的技术人员当可根据本发明作出各种相应的改变和变形，但这些相应的改变和变形都应属于本发明所附的权利要求的保护范围。Certainly, the present invention also can have other multiple embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these corresponding Changes and deformations should all belong to the protection scope of the appended claims of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196544.4A CN106160518A (en) | 2015-04-23 | 2015-04-23 | Energy-saving power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510196544.4A CN106160518A (en) | 2015-04-23 | 2015-04-23 | Energy-saving power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106160518A true CN106160518A (en) | 2016-11-23 |
Family
ID=57346976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510196544.4A Pending CN106160518A (en) | 2015-04-23 | 2015-04-23 | Energy-saving power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106160518A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070170903A1 (en) * | 2006-01-26 | 2007-07-26 | Silicon Laboratories, Inc. | Active diode bridge system |
| CN100585997C (en) * | 2004-04-13 | 2010-01-27 | 康默吉技术有限公司 | AC/DC converter comprising plural converters in cascade |
| CN104218824A (en) * | 2013-05-29 | 2014-12-17 | 群光电能科技股份有限公司 | Bypass device of negative temperature coefficient thermistor |
-
2015
- 2015-04-23 CN CN201510196544.4A patent/CN106160518A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100585997C (en) * | 2004-04-13 | 2010-01-27 | 康默吉技术有限公司 | AC/DC converter comprising plural converters in cascade |
| US20070170903A1 (en) * | 2006-01-26 | 2007-07-26 | Silicon Laboratories, Inc. | Active diode bridge system |
| CN104218824A (en) * | 2013-05-29 | 2014-12-17 | 群光电能科技股份有限公司 | Bypass device of negative temperature coefficient thermistor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6170119B2 (en) | System and method for driving a power switch | |
| JP6251395B2 (en) | Flyback fast start drive circuit and drive method | |
| JP2007272873A (en) | Method and apparatus for in-rush current limiting circuit | |
| TWI523382B (en) | Power conversion apparatus and protection method thereof while feedback current signal abnormal | |
| JP2011239253A5 (en) | ||
| CN104218824B (en) | Bypass device for negative temperature coefficient thermistor | |
| RU2661311C2 (en) | Electronic circuit and method of operation of electronic circuit | |
| TW201611457A (en) | Discharge circuit | |
| JP2008125313A (en) | Switching power supply | |
| TWM507115U (en) | Energy-saving power supply apparatus | |
| CN104578840B (en) | Power supply circuit and the electronic equipment with the power supply circuit | |
| CN104518689B (en) | Zero current detection circuit and direct current converter | |
| CN106160518A (en) | Energy-saving power supply device | |
| CN108880236A (en) | The Boost circuit and suppressing method of surge in a kind of inhibition | |
| TWI573378B (en) | Energy-saving power supply apparatus | |
| JP2016189666A (en) | Power supply circuit for driving surface discharge element | |
| CN204131110U (en) | Based on the battery system anti-surge circuit of discrete elements | |
| CN204631083U (en) | Active load circuit | |
| TWI474592B (en) | Bypass apparatus for negative temperature coefficient thermistor | |
| CN104079166A (en) | Power supply circuit | |
| KR101054990B1 (en) | Standby power supply circuit of LED TV power supply | |
| US9641096B2 (en) | Energy-saving power supply apparatus | |
| TWM477733U (en) | Power supply apparatus with variable circuit loop impedance | |
| CN205375367U (en) | Power supply system with power saving function | |
| TW201618406A (en) | Overvoltage protectign circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161123 |