TW201637334A - Energy-saving power supply apparatus - Google Patents
Energy-saving power supply apparatus Download PDFInfo
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- TW201637334A TW201637334A TW104111962A TW104111962A TW201637334A TW 201637334 A TW201637334 A TW 201637334A TW 104111962 A TW104111962 A TW 104111962A TW 104111962 A TW104111962 A TW 104111962A TW 201637334 A TW201637334 A TW 201637334A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
Description
本發明係有關於一種電源供應裝置，特別是一種節能型電源供應裝置。
The present invention relates to a power supply device, and more particularly to an energy-saving power supply device.
電源供應裝置是一種非常常見的電子裝置；電源供應裝置係用以提供電源予負載裝置，藉以驅動負載裝置；因此，電源供應裝置非常的重要。通常，電源供應裝置係連接交流電源供應裝置以接收交流電源。The power supply device is a very common electronic device; the power supply device is used to supply power to the load device to drive the load device; therefore, the power supply device is very important. Typically, the power supply unit is connected to an AC power supply to receive AC power.
當交流電源供應裝置或負載裝置剛啟動時，容易產生突波電流（inrush current，或稱湧浪電流）；因此，電源供應裝置通常包含負溫度係數熱敏電阻（negative temperature coefficient thermistor）以抑制突波電流。當交流電源供應裝置或負載裝置剛啟動時，負溫度係數熱敏電阻的溫度低，因此阻抗很大，可以抑制突波電流的產生。電源供應裝置的橋式整流器的二極體係用以限制電流的流向，因此電源供應裝置的橋式整流器的二極體在抑制突波電流的問題上亦扮演重要角色。When the AC power supply device or the load device is just started, an inrush current (inrush current) is easily generated; therefore, the power supply device usually includes a negative temperature coefficient thermistor to suppress the sudden rise. Wave current. When the AC power supply device or the load device is just started, the temperature of the negative temperature coefficient thermistor is low, so the impedance is large, and the generation of the surge current can be suppressed. The two-pole system of the bridge rectifier of the power supply device is used to limit the flow of current, and therefore the diode of the bridge rectifier of the power supply device also plays an important role in suppressing the surge current.
當無突波電流產生之虞時，電源供應裝置的橋式整流器的二極體（甚至負溫度係數熱敏電阻）會消耗大量的能源，此問題需要被解決以節能。When no surge current is generated, the diode of the bridge rectifier of the power supply device (even the negative temperature coefficient thermistor) consumes a large amount of energy, and this problem needs to be solved to save energy.
為改善上述習知技術之缺點，本發明之目的在於提供一種節能型電源供應裝置。In order to improve the above disadvantages of the prior art, it is an object of the present invention to provide an energy-saving power supply device.
為達成本發明之上述目的，本發明之節能型電源供應裝置包含：一橋式整流器；一二極體旁路電路，電性連接至該橋式整流器；及一控制電路，電性連接至該二極體旁路電路及該橋式整流器。其中該橋式整流器包含複數之二極體。其中在該控制電路接收一電源啟動信號之後，該控制電路控制該二極體旁路電路，使得該些二極體的一部分被旁路以節能。In order to achieve the above object of the present invention, the energy-saving power supply device of the present invention comprises: a bridge rectifier; a diode bypass circuit electrically connected to the bridge rectifier; and a control circuit electrically connected to the second A pole bypass circuit and the bridge rectifier. Wherein the bridge rectifier comprises a plurality of diodes. After the control circuit receives a power start signal, the control circuit controls the diode bypass circuit such that a portion of the diodes are bypassed to save energy.
再者，如上所述之節能型電源供應裝置，更包含：一負溫度係數熱敏電阻，電性連接至該二極體旁路電路及該橋式整流器。Furthermore, the energy-saving power supply device as described above further includes: a negative temperature coefficient thermistor electrically connected to the diode bypass circuit and the bridge rectifier.
再者，如上所述之節能型電源供應裝置，更包含：一直流轉直流轉換器，電性連接至該橋式整流器及該控制電路。Furthermore, the energy-saving power supply device as described above further includes: a DC-DC converter that is electrically connected to the bridge rectifier and the control circuit.
再者，如上所述之節能型電源供應裝置，更包含：一濾波電容，電性連接至該橋式整流器及該直流轉直流轉換器。Furthermore, the energy-saving power supply device as described above further includes: a filter capacitor electrically connected to the bridge rectifier and the DC-to-DC converter.
再者，如上所述之節能型電源供應裝置，其中該橋式整流器包含：一第一二極體，電性連接至該二極體旁路電路及該控制電路。Furthermore, the energy-saving power supply device as described above, wherein the bridge rectifier comprises: a first diode, electrically connected to the diode bypass circuit and the control circuit.
再者，如上所述之節能型電源供應裝置，其中該橋式整流器更包含：一第二二極體，電性連接至該二極體旁路電路、該控制電路及該第一二極體。Furthermore, the energy-saving power supply device as described above, wherein the bridge rectifier further comprises: a second diode electrically connected to the diode bypass circuit, the control circuit and the first diode .
再者，如上所述之節能型電源供應裝置，其中該橋式整流器更包含：一第三二極體，電性連接至該二極體旁路電路及該第一二極體。Furthermore, the energy-saving power supply device as described above, wherein the bridge rectifier further comprises: a third diode, electrically connected to the diode bypass circuit and the first diode.
再者，如上所述之節能型電源供應裝置，其中該橋式整流器更包含：一第四二極體，電性連接至該二極體旁路電路、該第二二極體及該第三二極體。Furthermore, the energy-saving power supply device as described above, wherein the bridge rectifier further comprises: a fourth diode, electrically connected to the diode bypass circuit, the second diode, and the third Diode.
再者，如上所述之節能型電源供應裝置，其中該二極體旁路電路包含：一第一開關，電性連接至該橋式整流器及該控制電路。Furthermore, the energy-saving power supply device as described above, wherein the diode bypass circuit comprises: a first switch electrically connected to the bridge rectifier and the control circuit.
再者，如上所述之節能型電源供應裝置，其中該二極體旁路電路更包含：一第二開關，電性連接至該橋式整流器、該控制電路及該第一開關。Furthermore, the energy-saving power supply device as described above, wherein the diode bypass circuit further comprises: a second switch electrically connected to the bridge rectifier, the control circuit and the first switch.
本發明之功效在於在該控制電路接收該電源啟動信號之後（此時已無突波電流產生之虞），該控制電路控制該二極體旁路電路，使得該橋式整流器的該些二極體的一部分被旁路以節能。The effect of the invention is that after the control circuit receives the power start signal (there is no surge current generated at this time), the control circuit controls the diode bypass circuit such that the two poles of the bridge rectifier A portion of the body is bypassed to save energy.
10‧‧‧節能型電源供應裝置10‧‧‧Energy-saving power supply unit
20‧‧‧交流電源供應裝置20‧‧‧AC power supply unit
30‧‧‧負載裝置30‧‧‧Loading device
102‧‧‧橋式整流器102‧‧‧Bridge rectifier
104‧‧‧二極體旁路電路104‧‧‧ diode bypass circuit
106‧‧‧控制電路106‧‧‧Control circuit
108‧‧‧負溫度係數熱敏電阻108‧‧‧Negative temperature coefficient thermistor
110‧‧‧直流轉直流轉換器110‧‧‧DC to DC converter
112‧‧‧濾波電容112‧‧‧Filter capacitor
114‧‧‧開關單元114‧‧‧Switch unit
116‧‧‧開關控制單元116‧‧‧Switch control unit
118‧‧‧開關子單元118‧‧‧Switch subunit
120‧‧‧第一電阻120‧‧‧First resistance
122‧‧‧第二電阻122‧‧‧second resistance
124‧‧‧第三電阻124‧‧‧ Third resistor
202‧‧‧電源202‧‧‧Power supply
D1‧‧‧第一二極體D1‧‧‧First Diode
D2‧‧‧第二二極體D2‧‧‧ second diode
D3‧‧‧第三二極體D3‧‧‧ third diode
D4‧‧‧第四二極體D4‧‧‧ fourth diode
S1‧‧‧第一開關S1‧‧‧ first switch
S2‧‧‧第二開關S2‧‧‧ second switch
圖1為本發明之節能型電源供應裝置之第一實施例方塊圖。1 is a block diagram showing a first embodiment of an energy-saving power supply device of the present invention.
圖2為本發明之節能型電源供應裝置之第二實施例方塊圖。2 is a block diagram showing a second embodiment of the energy-saving power supply device of the present invention.
有關本發明的詳細說明及技術內容，請參閱以下的詳細說明和附圖說明如下，而附圖與詳細說明僅作為說明之用，並非用於限制本發明。The detailed description and the technical description of the present invention are to be understood as the
請參考圖1，其係為本發明之節能型電源供應裝置之第一實施例方塊圖。一節能型電源供應裝置10係應用於一交流電源供應裝置20及一負載裝置30。該節能型電源供應裝置10包含一橋式整流器102、一二極體旁路電路104、一控制電路106、一負溫度係數熱敏電阻108、一直流轉直流轉換器110及一濾波電容112。該橋式整流器102包含複數之二極體；亦即，該橋式整流器102包含一第一二極體D1、一第二二極體D2、一第三二極體D3及一第四二極體D4。該二極體旁路電路104包含一第一開關S1及一第二開關S2。Please refer to FIG. 1, which is a block diagram of a 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-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. Body D4. The diode bypass circuit 104 includes a first switch S1 and a second switch S2.
該二極體旁路電路104電性連接至該橋式整流器102；該控制電路106電性連接至該二極體旁路電路104及該橋式整流器102；該負溫度係數熱敏電阻108電性連接至該二極體旁路電路104及該橋式整流器102；該直流轉直流轉換器110電性連接至該橋式整流器102及該控制電路106；該濾波電容112電性連接至該橋式整流器102及該直流轉直流轉換器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 The DC-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. The rectifier 102 and the DC to DC converter 110.
該第一二極體D1電性連接至該二極體旁路電路104及該控制電路106；該第二二極體D2電性連接至該二極體旁路電路104、該控制電路106及該第一二極體D1；該第三二極體D3電性連接至該二極體旁路電路104及該第一二極體D1；該第四二極體D4電性連接至該二極體旁路電路104、該第二二極體D2及該第三二極體D3。該第一開關S1電性連接至該橋式整流器102及該控制電路106；該第二開關S2電性連接至該橋式整流器102、該控制電路106及該第一開關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 diode D1 is electrically connected to the diode bypass circuit 104 and the first diode D1; the fourth diode D4 is electrically connected to the diode The body bypass circuit 104, 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.
在該控制電路106接收一電源啟動信號之後（此時已無突波電流產生之虞），該控制電路106控制該二極體旁路電路104，使得該些二極體（即該第一二極體D1、該第二二極體D2、該第三二極體D3及該第四二極體D4）的一部分（例如該第二二極體D2或該第四二極體D4）被旁路以節能，茲詳述如後。其中，該電源啟動信號係代表該直流轉直流轉換器110要進行工作（即此時已無突波電流產生之虞）。After the control circuit 106 receives a power-on signal (when no surge current is generated), the control circuit 106 controls the diode bypass circuit 104 to make the diodes (ie, the first two) a portion of the pole body D1, the second diode D2, the third diode D3, and the fourth diode D4) (eg, the second diode D2 or the fourth diode D4) is bypassed The road is energy-saving, as detailed below. The power-on signal indicates that the DC-to-DC converter 110 is to be operated (ie, no surge current is generated at this time).
當該交流電源供應裝置20或該負載裝置30剛啟動時（此時容易產生突波電流），該第一開關S1及該第二開關S2係為不導通，使得該交流電源供應裝置20所提供的一電源202係流經該負溫度係數熱敏電阻108以抑制突波電流。因為此時該負溫度係數熱敏電阻108的溫度低，因此阻抗很大，可以抑制突波電流的產生。When the AC power supply device 20 or the load device 30 is just activated (the surge current is easily generated), the first switch S1 and the second switch S2 are non-conductive, so that the AC power supply device 20 provides A power source 202 flows through the negative temperature coefficient thermistor 108 to suppress the surge current. Since the temperature of the negative temperature coefficient thermistor 108 is low at this time, the impedance is large, and the generation of the surge current can be suppressed.
此時該電源202的正半週路徑為：該第一二極體D1、該直流轉直流轉換器110、該負載裝置30、該負溫度係數熱敏電阻108、該第四二極體D4及該交流電源供應裝置20。該電源202的負半週路徑為：該第三二極體D3、該直流轉直流轉換器110、該負載裝置30、該負溫度係數熱敏電阻108、該第二二極體D2及該交流電源供應裝置20。At this time, the positive half-circle path of the power source 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 source 202 is: the third diode D3, the DC-to-DC converter 110, the load device 30, the negative temperature coefficient thermistor 108, the second diode D2, and the alternating current Power supply device 20.
該電源啟動信號可來自該直流轉直流轉換器110之一脈波寬度調變控制器（圖1未示）或該交流電源供應裝置20；在該控制電路106接收該電源啟動信號之後（此時已無突波電流產生之虞）：The power start signal may be from a pulse width modulation controller (not shown in FIG. 1) or the AC power supply device 20 of the DC to DC converter 110; after the control circuit 106 receives the power start signal (at this time) There is no surge current generated):
該控制電路106在該電源202的正半週導通該第二開關S2而不導通該第一開關S1，此時路徑為：該第一二極體D1、該直流轉直流轉換器110、該負載裝置30、該第二開關S2及該交流電源供應裝置20，因此節省了該負溫度係數熱敏電阻108及該第四二極體D4的能量消耗。The control circuit 106 turns on the second switch S2 in the positive half of the power source 202 without turning on the first switch S1. The path is: the first diode D1, the DC-to-DC converter 110, the load. The device 30, the second switch S2 and the AC power supply device 20 thus save energy consumption of the negative temperature coefficient thermistor 108 and the fourth diode D4.
該控制電路106在該電源202的負半週導通該第一開關S1而不導通該第二開關S2，此時路徑為：該第三二極體D3、該直流轉直流轉換器110、該負載裝置30、該第一開關S1及該交流電源供應裝置20，因此節省了該負溫度係數熱敏電阻108及該第二二極體D2的能量消耗。The control circuit 106 turns on the first switch S1 in the negative half cycle of the power source 202 without turning on the second switch S2. The path is: the third diode D3, the DC-to-DC converter 110, the load. The device 30, the first switch S1 and the AC power supply device 20 thus save energy consumption of the negative temperature coefficient thermistor 108 and the second diode D2.
再者，為了避免零點切換的誤動作，上述在該控制電路106接收該電源啟動信號之後的流程可修改為：Moreover, in order to avoid the malfunction of the zero point switching, the flow after the control circuit 106 receives the power start signal may be modified as follows:
該控制電路106在該電源202的正半週仍然不導通該第一開關S1；該控制電路106在該電源202的正半週且該電源202的電壓絕對值大於一預設電壓值（例如5伏特或10伏特）時才導通該第二開關S2。該控制電路106在該電源202的負半週仍然不導通該第二開關S2；該控制電路106在該電源202的負半週且該電源202的電壓絕對值大於該預設電壓值時才導通該第一開關S1。如此，即可避免零點切換的誤動作。The control circuit 106 still does not turn on the first switch S1 during the positive half cycle of the power source 202; the control circuit 106 is in the positive half of the power source 202 and the absolute value of the voltage of the power source 202 is greater than a predetermined voltage value (for example, 5 The second switch S2 is turned on when volts or 10 volts. The control circuit 106 still does not turn on the second switch S2 during the negative half cycle of the power source 202; the control circuit 106 is turned on when the negative half of the power source 202 and the absolute value of the voltage of the power source 202 is greater than the preset voltage value. The first switch S1. In this way, the malfunction of the zero point switching can be avoided.
但是，在該電源202的正半週且該電源202的電壓絕對值不大於該預設電壓值時，以及在該電源202的負半週且該電源202的電壓絕對值不大於該預設電壓值時，該控制電路106係不導通該第一開關S1及該第二開關S2；此時該電源202的正半週路徑為：該第一二極體D1、該直流轉直流轉換器110、該負載裝置30、該負溫度係數熱敏電阻108、該第四二極體D4及該交流電源供應裝置20；該電源202的負半週路徑為：該第三二極體D3、該直流轉直流轉換器110、該負載裝置30、該負溫度係數熱敏電阻108、該第二二極體D2及該交流電源供應裝置20。相較於無該預設電壓值，浪費了該負溫度係數熱敏電阻108、該第四二極體D4及該第二二極體D2的能量消耗。該第四二極體D4及該第二二極體D2的能量消耗無法避免，但是該負溫度係數熱敏電阻108的能量消耗可以藉由下述實施例避免。However, in the positive half cycle of the power source 202 and the absolute value of the voltage of the power source 202 is not greater than the predetermined voltage value, and in the negative half cycle of the power source 202 and the absolute value of the voltage of the power source 202 is not greater than the preset voltage. In the case of the value, the control circuit 106 does not turn on the first switch S1 and the second switch S2; the positive half-circle path of the power source 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 source 202 is: the third diode D3, the DC transfer The DC converter 110, the load device 30, the negative temperature coefficient thermistor 108, the second diode D2, and the AC power supply device 20. The energy consumption of the negative temperature coefficient thermistor 108, the fourth diode D4, and the second diode D2 is wasted compared to the absence of the preset voltage value. The energy consumption of the fourth diode D4 and the second diode D2 cannot be avoided, but the energy consumption of the negative temperature coefficient thermistor 108 can be avoided by the following embodiments.
請參考圖2，其係為本發明之節能型電源供應裝置之第二實施例方塊圖；圖2所示之元件敘述與圖1相似者，為簡潔因素，於此不再贅述。該節能型電源供應裝置10更包含一開關單元114及一開關控制單元116。該開關控制單元116包含一開關子單元118、一第一電阻120、一第二電阻122及一第三電阻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 similar to those of FIG. 1 , and are not described herein again for brevity. 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.
該開關單元114可為例如但本發明不限定為一電晶體開關，例如一金氧半場效電晶體或一雙極性接面電晶體，其功耗係遠小於該負溫度係數熱敏電阻108的功耗；該開關子單元118可為例如但本發明不限定為一電晶體開關，例如一金氧半場效電晶體或一雙極性接面電晶體，其功耗係遠小於該負溫度係數熱敏電阻108的功耗。The switching unit 114 can be, for example, but the invention is not limited to a transistor switch, such as a MOS field effect transistor or a bipolar junction transistor, and the power consumption is much smaller than that of the negative temperature coefficient thermistor 108. Power consumption; the switch subunit 118 can be, for example, but the invention is not limited to a transistor switch, such as a gold oxide half field effect transistor or a bipolar junction transistor, and its power consumption is much smaller than the negative temperature coefficient heat. The power consumption of the varistor 108.
該開關單元114電性連接至該負溫度係數熱敏電阻108；該開關控制單元116電性連接至該開關單元114及該控制電路106；該開關子單元118電性連接至該開關單元114及該控制電路106；該第一電阻120電性連接至該開關子單元118及該控制電路106；該第二電阻122電性連接至該開關子單元118及該第一電阻120；該第三電阻124電性連接至該開關子單元118及該開關單元114。The switch unit 114 is electrically connected to the negative temperature coefficient 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.
當該交流電源供應裝置20或該負載裝置30剛啟動時（此時容易產生突波電流），該第一開關S1、該第二開關S2及該開關單元114係為不導通，使得該交流電源供應裝置20所提供的該電源202係流經該負溫度係數熱敏電阻108以抑制突波電流。因為此時該負溫度係數熱敏電阻108的溫度低，因此阻抗很大，可以抑制突波電流的產生。When the AC power supply device 20 or the load device 30 is just activated (the surge current is easily generated), the first switch S1, the second switch S2, and the switch unit 114 are non-conducting, so that the AC power source is The power source 202 provided by the supply device 20 flows through the negative temperature coefficient thermistor 108 to suppress the surge current. Since the temperature of the negative temperature coefficient thermistor 108 is low at this time, the impedance is large, and the generation of the surge current can be suppressed.
在該控制電路106接收該電源啟動信號之後（此時已無突波電流產生之虞）：After the control circuit 106 receives the power-on signal (there is no surge current generated at this time):
該控制電路106在該電源202的正半週不導通該第一開關S1；該控制電路106在該電源202的正半週且該電源202的電壓絕對值大於該預設電壓值時導通該第二開關S2。該控制電路106在該電源202的負半週不導通該第二開關S2；該控制電路106在該電源202的負半週且該電源202的電壓絕對值大於該預設電壓值時導通該第一開關S1。如此，即可避免零點切換的誤動作。The control circuit 106 does not turn on the first switch S1 during the positive half cycle of the power source 202; the control circuit 106 turns on the first half of the power source 202 and the absolute value of the voltage of the power source 202 is greater than the preset voltage value. Two switches S2. The control circuit 106 does not turn on the second switch S2 during the negative half cycle of the power source 202; the control circuit 106 turns on the first half of the power source 202 and the absolute value of the voltage of the power source 202 is greater than the preset voltage value. A switch S1. In this way, the malfunction of the zero point switching can be avoided.
在該電源202的正半週且該電源202的電壓絕對值不大於該預設電壓值時，該控制電路106係不導通該第二開關S2但該控制電路106係控制該開關控制單元116以導通該開關單元114；該開關單元114的阻抗遠小於（或小於）該負溫度係數熱敏電阻108的阻抗，因此該負溫度係數熱敏電阻108被旁路而幾乎不導通，使得此時的路徑為：該第一二極體D1、該直流轉直流轉換器110、該負載裝置30、該開關單元114、該第四二極體D4及該交流電源供應裝置20。因此相較於無該開關單元114及該開關控制單元116，節省了該負溫度係數熱敏電阻108的能量消耗。In the positive half cycle of the power source 202 and the absolute value of the voltage of the power source 202 is not greater than the preset voltage value, the control circuit 106 does not turn on the second switch S2 but the control circuit 106 controls the switch control unit 116 to Turning on the switch unit 114; the impedance of the switch unit 114 is much smaller than (or less than) the impedance of the negative temperature coefficient thermistor 108, so the negative temperature coefficient thermistor 108 is bypassed and hardly turned on, so that The path 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, the energy consumption of the negative temperature coefficient thermistor 108 is saved compared to the absence of the switching unit 114 and the switch control unit 116.
在該電源202的負半週且該電源202的電壓絕對值不大於該預設電壓值時，該控制電路106係不導通該第一開關S1但該控制電路106係控制該開關控制單元116以導通該開關單元114；該開關單元114的阻抗遠小於（或小於）該負溫度係數熱敏電阻108的阻抗，因此該負溫度係數熱敏電阻108被旁路而幾乎不導通，使得此時的路徑為：該第三二極體D3、該直流轉直流轉換器110、該負載裝置30、該開關單元114、該第二二極體D2及該交流電源供應裝置20。因此相較於無該開關單元114及該開關控制單元116，節省了該負溫度係數熱敏電阻108的能量消耗。In the negative half cycle of the power source 202 and the absolute value of the voltage of the power source 202 is not greater than the predetermined voltage value, the control circuit 106 does not turn on the first switch S1 but the control circuit 106 controls the switch control unit 116 to Turning on the switch unit 114; the impedance of the switch unit 114 is much smaller than (or less than) the impedance of the negative temperature coefficient thermistor 108, so the negative temperature coefficient thermistor 108 is bypassed and hardly turned on, so that The path 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, the energy consumption of the negative temperature coefficient thermistor 108 is saved compared to the absence of the switching unit 114 and the switch control unit 116.
本發明之主要功效在於在該控制電路106接收該電源啟動信號之後（此時已無突波電流產生之虞），該控制電路106控制該二極體旁路電路104，使得該橋式整流器102的該些二極體的一部分被旁路以節能；此時該負溫度係數熱敏電阻108亦被旁路以節能。再者，即便為了避免零點切換的誤動作而設定了該預設電壓值，本發明仍可在該電源202的電壓絕對值不大於該預設電壓值時旁路該負溫度係數熱敏電阻108以節能。The main function of the present invention is that after the control circuit 106 receives the power-on signal (when no surge current is generated), the control circuit 106 controls the diode bypass circuit 104 such that the bridge rectifier 102 A portion of the diodes are bypassed to save power; at this time, the negative temperature coefficient thermistor 108 is also bypassed to save energy. Moreover, even if the preset voltage value is set to avoid the malfunction of the zero point switching, the present invention can bypass the negative temperature coefficient thermistor 108 when the absolute value of the voltage of the power source 202 is not greater than the preset voltage value. Energy saving.
然以上所述者，僅為本發明之較佳實施例，當不能限定本發明實施之範圍，即凡依本發明申請專利範圍所作之均等變化與修飾等，皆應仍屬本發明之專利涵蓋範圍意圖保護之範疇。本發明還可有其它多種實施例，在不背離本發明精神及其實質的情況下，熟悉本領域的技術人員當可根據本發明作出各種相應的改變和變形，但這些相應的改變和變形都應屬於本發明所附的權利要求的保護範圍。綜上所述，當知本發明已具有產業利用性、新穎性與進步性，又本發明之構造亦未曾見於同類產品及公開使用，完全符合發明專利申請要件，爰依專利法提出申請。However, the above is only a preferred embodiment of the present invention, and the scope of the present invention is not limited thereto, that is, the equivalent changes and modifications made by the scope of the present invention should still be covered by the patent of the present invention. The scope of the scope is intended to protect. The invention may be embodied in various other modifications and changes without departing from the spirit and scope of the inventions. It is intended to fall within the scope of the appended claims. In summary, it is known that the present invention has industrial applicability, novelty and advancement, and the structure of the present invention has not been seen in similar products and public use, and fully complies with the requirements of the invention patent application, and is filed according to the patent law.
10‧‧‧節能型電源供應裝置 10‧‧‧Energy-saving power supply unit
20‧‧‧交流電源供應裝置 20‧‧‧AC power supply unit
30‧‧‧負載裝置 30‧‧‧Loading device
102‧‧‧橋式整流器 102‧‧‧Bridge rectifier
104‧‧‧二極體旁路電路 104‧‧‧ diode bypass circuit
106‧‧‧控制電路 106‧‧‧Control circuit
108‧‧‧負溫度係數熱敏電阻 108‧‧‧Negative temperature coefficient thermistor
110‧‧‧直流轉直流轉換器 110‧‧‧DC to DC converter
112‧‧‧濾波電容 112‧‧‧Filter capacitor
202‧‧‧電源 202‧‧‧Power supply
D1‧‧‧第一二極體 D1‧‧‧First Diode
D2‧‧‧第二二極體 D2‧‧‧ second diode
D3‧‧‧第三二極體 D3‧‧‧ third diode
D4‧‧‧第四二極體 D4‧‧‧ fourth diode
S1‧‧‧第一開關 S1‧‧‧ first switch
S2‧‧‧第二開關 S2‧‧‧ second switch
Claims (11)
一橋式整流器；
一二極體旁路電路，電性連接至該橋式整流器；及
一控制電路，電性連接至該二極體旁路電路及該橋式整流器，
其中該橋式整流器包含複數之二極體；
其中在該控制電路接收一電源啟動信號之後，該控制電路控制該二極體旁路電路，使得該些二極體的一部分被旁路以節能。An energy-saving power supply device comprising:
a bridge rectifier;
a diode bypass circuit electrically connected to the bridge rectifier; and a control circuit electrically connected to the diode bypass circuit and the bridge rectifier
Wherein the bridge rectifier comprises a plurality of diodes;
After the control circuit receives a power start signal, the control circuit controls the diode bypass circuit such that a portion of the diodes are bypassed to save energy.
一負溫度係數熱敏電阻，電性連接至該二極體旁路電路及該橋式整流器。For example, the energy-saving power supply device described in claim 1 of the patent scope further includes:
A negative temperature coefficient thermistor is electrically connected to the diode bypass circuit and the bridge rectifier.
一直流轉直流轉換器，電性連接至該橋式整流器及該控制電路。The energy-saving power supply device as described in claim 2, further comprising:
A DC to DC converter is electrically connected to the bridge rectifier and the control circuit.
一濾波電容，電性連接至該橋式整流器及該直流轉直流轉換器。For example, the energy-saving power supply device described in claim 3 of the patent scope further includes:
A filter capacitor is electrically connected to the bridge rectifier and the DC to DC converter.
一第一二極體，電性連接至該二極體旁路電路及該控制電路。The energy-saving power supply device of claim 1, wherein the bridge rectifier comprises:
A first diode is electrically connected to the diode bypass circuit and the control circuit.
一第二二極體，電性連接至該二極體旁路電路、該控制電路及該第一二極體。The energy-saving power supply device of claim 5, wherein the bridge rectifier further comprises:
A second diode is electrically connected to the diode bypass circuit, the control circuit and the first diode.
一第三二極體，電性連接至該二極體旁路電路及該第一二極體。The energy-saving power supply device of claim 6, wherein the bridge rectifier further comprises:
A third diode is electrically connected to the diode bypass circuit and the first diode.
一第四二極體，電性連接至該二極體旁路電路、該第二二極體及該第三二極體。The energy-saving power supply device of claim 7, wherein the bridge rectifier further comprises:
A fourth diode is electrically connected to the diode bypass circuit, the second diode, and the third diode.
一第一開關，電性連接至該橋式整流器及該控制電路。The energy-saving power supply device of claim 1, wherein the diode bypass circuit comprises:
A first switch is electrically connected to the bridge rectifier and the control circuit.
A second switch is electrically connected to the bridge rectifier, the control circuit and the first switch.
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| US20070170903A1 (en) * | 2006-01-26 | 2007-07-26 | Silicon Laboratories, Inc. | Active diode bridge system |
| US8913409B2 (en) * | 2010-02-12 | 2014-12-16 | City University Of Hong Kong | Self-driven AC-DC synchronous rectifier for power applications |
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