CN103401445A - Large-current power supply switching circuit - Google Patents
Large-current power supply switching circuit Download PDFInfo
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- CN103401445A CN103401445A CN201310322922XA CN201310322922A CN103401445A CN 103401445 A CN103401445 A CN 103401445A CN 201310322922X A CN201310322922X A CN 201310322922XA CN 201310322922 A CN201310322922 A CN 201310322922A CN 103401445 A CN103401445 A CN 103401445A
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Abstract
The invention discloses a large-current power supply switching circuit, which is characterized by comprising a charging protective circuit, an anode control circuit, a cathode control circuit, a single-chip microcomputer IC 4 and a detection circuit, wherein the charging protective circuit is used for charging a large capacitor; the anode control circuit is used for controlling the charging protective circuit to output stable direct current; the cathode control circuit is used for obtaining the cathode of the direct current; the single-chip microcomputer IC 4 is used for controlling the anode control circuit and the cathode control circuit to work; the detection circuit is used for detecting whether charging the large capacitor is completed or not. The large-current power supply switching circuit is applied before a heating element of a sauna room, can avoid electromagnetic radiation from the source, does not influence the radiation effect of far infrared rays, and really realizes zero radiation.
Description
Technical field
The present invention relates to a kind of power circuit, a kind of large electric current specifically is for power conversion circuit.
Background technology
The Chinese meaning of EMF is electromagnetic radiation, along with change and the progress of people for concept of health, product demand for low EMF is increasing, yet any electrical equipment of alternating current that utilizes is as long as unlatching work all can produce electromagnetic radiation, therefore, present research direction focuses on that the electromagnetic radiation that how to reduce electric equipment ensures the health of human body, and the method for the reduction radiation of sauna house industry use has two kinds at home at present:
A kind of is to offset: by two heating board series connection, overlap, like this, the heating board waveform of the heating board of front and back is just in time opposite, allows them cancel each other out.Although this scheme can accomplish the EMF value below 8 milligauss,, two of front and back heating board is superimposed, and a heating board of back is being baked a heating board of front, the long-term use, the life-span of heating board can be affected.
Another kind is shielding: front and back at heating board respectively add a screen, and electromagnetic wave is blocked and do not allow it out, are similar to the radiation-proof clothes for gravida principle.This scheme can accomplish the EMF value below 3 milligauss, and still, when the electromagnetic wave of heating board was blocked, far infrared also had been blocked, and greatly reduced the physiotheraping effect of far infrared.
Summary of the invention
This provides a kind of large electric current that can be applied to sauna house for power conversion circuit for being avoided the existing weak point of above-mentioned prior art, can stop from source the generation of electromagnetic radiation, and not affect the physiotheraping effect of far infrared, really accomplishes zero radiation.
The present invention is that the technical solution problem adopts following technical scheme:
A kind of large electric current of the present invention for the design feature of power conversion circuit is: the composition of described change-over circuit comprises: charge protector, anodal control circuit, negative pole control circuit, single-chip microcomputer IC4 and testing circuit;
Described charge protector is used to large capacitor charging;
Described anodal control circuit is for controlling the direct current of described charge protector stable output;
Described negative pole control circuit is for obtaining galvanic negative pole;
Whether described testing circuit has charged for detection of large electric capacity;
Described single-chip microcomputer IC4 is used for controlling described anodal control circuit and the negative pole control circuit carries out work.
The large electric current of the present invention also is for the design feature of power conversion circuit:
The composition of described charge protector comprises: current-limiting resistance R9, rectifier circuit IC6, large electric capacity E4, large electric capacity E5, capacitor C 5 and discharge resistance R10; The live wire CN3 end of alternating current is by the alternating current input AC-L of current-limiting resistance R9 access rectifier circuit IC6, the zero line CN4 of alternating current end is the alternating current input AC-N of the described rectifier circuit IC6 of access directly, and the direct current output cathode end V+ of described rectifier circuit IC6 and direct current output negative pole end V-are successively and the electric capacity E4 of the United Nations General Assembly, electric capacity E5, capacitor C 5 and discharge resistance R10 greatly.
The composition of described testing circuit comprises: divider resistance R2, diode D1, shunt resistance R3 and photoelectrical coupler IC3; The end of described divider resistance R2 is connected with the direct current output cathode end V+ of rectifier circuit IC6, the other end of divider resistance R2 is connected with the negative electrode of diode D1, the anode of diode D1 is connected with VSS1, the two ends of diode D1 are two inputs of shunt resistance R3 in parallel and photoelectrical coupler IC3 successively, the 3rd pin of the described single-chip microcomputer IC4 of the 4th pin access of photoelectrical coupler IC3.
The composition of described anodal control circuit comprises: relay R LY1, diode D2, triode Q1 and resistance R 6; Described relay R LY1 is connected in parallel on the two ends of current-limiting resistance R9, the 2nd pin of relay R LY1 is connected with the collector electrode of triode Q1 with the anode of diode D2, the base stage of triode Q1 is connected with an end of resistance R 6, and the other end of resistance R 6 is connected with the 3rd pin of described single-chip microcomputer IC4.
the composition of described negative pole control circuit comprises: photoelectrical coupler IC5, resistance R 7, resistance R 8, voltage stabilizing didoe DZ1 and transistor MOS1, the input of described photoelectrical coupler IC5 is connected with the 5th pin of single-chip microcomputer IC4, the output of photoelectrical coupler IC5 is connected with VEE, another output of photoelectrical coupler IC5 is connected with an end of resistance R 7, the other end of resistance R 7 is connected with the negative pole of voltage stabilizing didoe DZ1 with resistance R 8 respectively, the positive pole access VSS1 of the other end of resistance R 8 and voltage stabilizing didoe DZ1, the grid of transistor MOS1 is connected with the negative pole of voltage stabilizing didoe DZ1, the source electrode of transistor MOS1 is connected with the positive pole of voltage stabilizing didoe DZ1.
The composition of described change-over circuit also comprises power circuit, and described power circuit provides working power for described change-over circuit;
The composition of described power circuit comprises: transformer TR1, rectifier circuit DB1, rectifier circuit DB2, large electric capacity E1, large electric capacity E2, large electric capacity E3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 6, discharge resistance R1 and voltage-stabiliser tube U1; The live wire CN3 of alternating current end and zero line CN4 termination enter the input of described transformer TR1, and the output of transformer TR1 is connected with two inputs of rectifier circuit DB1 and two inputs of rectifier circuit DB2 respectively;
Two outputs of rectifier circuit DB1 successively and the electric capacity E1 of the United Nations General Assembly and capacitor C 2, the direct current output cathode end V+ of rectifier circuit DB1 is connected with the input of voltage-stabiliser tube U1, the direct current output negative pole end V-of rectifier circuit DB1 is connected with the earth terminal of voltage-stabiliser tube U1, and the output and ground of voltage-stabiliser tube U1 successively and the electric capacity E3 of the United Nations General Assembly, capacitor C 3 and capacitor C 6;
Two outputs of rectifier circuit DB2 successively and the electric capacity E2 of the United Nations General Assembly, capacitor C 1 and discharge resistance R1.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention can be on the basis that does not change original control circuit, by connecting the present invention in the middle of existing control circuit and load, realization becomes former loaded work piece electric current into direct current by alternating current, the direct current supply of large electric current is provided for system, easy to connect, greatly increase the flexibility of circuit design, met the application demand of zero radiation.
2, charge protector of the present invention can start moment at change-over circuit; prevented that large electric current from impacting and damaging original control circuit; the phenomenon that can not cause the relay contact sparking sintering relay contact in former control circuit occurs, and original control circuit has been played to good protective effect.
3, the present invention is applied between the heater and control box of sauna house, can be in the structure that does not need to change sauna house heater itself, and do not reduce in the situation of amount of radiation of far infrared, directly alternating current is converted to direct current, solve the technical problem of sauna house zero radiation.
4, the present invention has the charging delay protection function; after the input energising; first with less electric current to the large capacitor charging in power module; after being full of electricity; again with larger electric current powering load; thereby guarantee that in use the larger electric current that can not produce because of control box relay adhesive moment and useful life of damaging the sauna house control box have also guaranteed the operating current of load long-term stability and the useful life of not loss heater.
The accompanying drawing explanation
Fig. 1 is electrical block diagram of the present invention.
Embodiment
Large electric current of the present invention can directly be connected in series to existing control circuit and the middle direct current supply that large electric current is provided for system of load for power conversion circuit, easy to connect, in the present embodiment, a kind of large electric current is to be applied to the AC power of sauna house control box output and the power-switching circuit between heater for power conversion circuit, and its composition comprises: charge protector, anodal control circuit, negative pole control circuit, single-chip microcomputer IC4, testing circuit and power circuit;
Charge protector is large capacitor charging for alternating current is converted to direct current, avoids the control circuit in control box impacted and damage;
Anodal control circuit is for controlling the direct current positive pole of charge protector stable output;
The negative pole control circuit is for obtaining galvanic negative pole;
Whether testing circuit has charged for detection of large electric capacity;
Power circuit provides working power for change-over circuit, comprise+the 5V power supply ,+12V power supply and VEE power supply;
Single-chip microcomputer IC4 controls anodal control circuit while for large capacitor charging, completing and the negative pole control circuit carries out work.
In the present embodiment, with the 120V alternating current, be input as example, acquisition be to stablize the 150V direct voltage, participate in Fig. 1, the composition of charge protector comprises: current-limiting resistance R9, rectifier circuit IC6, large electric capacity E4, large electric capacity E5, capacitor C 5 and discharge resistance R10; The live wire CN3 end of 120V alternating current is by the alternating current input AC-L of current-limiting resistance R9 access rectifier circuit IC6, the zero line CN4 of 120V alternating current end is the alternating current input AC-N of access rectifier circuit IC6 directly, and the direct current output cathode end V+ of rectifier circuit IC6 and direct current output negative pole end V-are successively and the electric capacity E4 of the United Nations General Assembly, electric capacity E5, capacitor C 5 and discharge resistance R10 greatly; At the initial stage of 120V alternating current input, relay R LY1 is adhesive not, can only through rectifier circuit IC6, take less current conversion as direct current, be by current-limiting resistance R9 large electric capacity E4 and large electric capacity E5 charging; When system cut-off, discharge resistance R10 is that large electric capacity E4, large electric capacity E5 discharge, and can fast the tele-release in electric capacity be fallen.In order to avoid deposit electricity because of electric capacity, after outage, the anodal CN5 end of 150V direct current has electric current output.
After being full of electricity, the testing circuit feedback signal is to single-chip microcomputer IC4, and single-chip microcomputer IC4 just controls the relay R LY1 adhesive of anodal control circuit, current-limiting resistance R9 is bypassed, thereby obtain the anodal CN5 of direct current 150V of large electric current; Single-chip microcomputer IC4 controls the transistor MOS1 conducting of negative pole control circuit simultaneously, thereby obtains the direct current 150V negative pole CN2 of large electric current;
The composition of testing circuit comprises: divider resistance R2, diode D1, shunt resistance R3, resistance R 4, capacitor C 4 and photoelectrical coupler IC3; The end of divider resistance R2 is connected with the direct current output cathode end V+ of rectifier circuit IC6, the other end of divider resistance R2 is connected with the negative electrode of diode D1, the anode of diode D1 is connected with VSS1, the two ends of diode D1 are two inputs of shunt resistance R3 in parallel and photoelectrical coupler IC3 successively, the 3rd pin of the 4th pin access single-chip microcomputer IC4 of photoelectrical coupler IC3; The 4th pin of photoelectrical coupler IC3 is connected with an end of resistance R 4 and capacitor C 4 simultaneously, the other end access+5V power supply of resistance R 4, and the 3rd pin of the other end of capacitor C 4 and photoelectrical coupler IC3 is ground connection all;
the composition of anodal control circuit comprises: relay R LY1, diode D2, triode Q1 and resistance R 6, relay R LY1 is connected in parallel on the two ends of current-limiting resistance R9, the end of current-limiting resistance R9 is connected with the 5th pin with the 3rd of relay R LY1, the other end of current-limiting resistance R9 is connected with the 4th pin of relay R LY1 and accesses the alternating current input AC-L of rectifier circuit IC6, the 1st pin of relay R LY1 is connected with+12V power supply, the 2nd pin of relay R LY1 is connected with the collector electrode of triode Q1 with the anode of diode D2, the negative electrode of diode D2 connects+the 12V power supply, the grounded emitter of triode Q1, the base stage of triode Q1 is connected with an end of resistance R 6, the other end of resistance R 6 is connected with the 3rd pin of single-chip microcomputer IC4,
the composition of negative pole control circuit comprises: photoelectrical coupler IC5, resistance R 5, resistance R 7, resistance R 8, voltage stabilizing didoe DZ1 and transistor MOS1, the input of photoelectrical coupler IC5 is connected with the 5th pin of single-chip microcomputer IC4, the input of photoelectrical coupler IC5 is connected with an end of resistance R 5, the other end of resistance R 5 is connected with+5V power supply, the output of photoelectrical coupler IC5 is connected with VEE, another output of photoelectrical coupler IC5 is connected with an end of resistance R 7, the other end of resistance R 7 is connected with the negative pole of voltage stabilizing didoe DZ1 with resistance R 8 respectively, the positive pole access VSS1 of the other end of resistance R 8 and voltage stabilizing didoe DZ1, the grid of transistor MOS1 is connected with the negative pole of voltage stabilizing didoe DZ1, the source electrode of transistor MOS1 is connected with the positive pole of voltage stabilizing didoe DZ1, the drain electrode of transistor MOS1 is connected with the CN2 interface,
particularly, as large electric capacity E4 with after electric capacity E5 is full of greatly, the DC power supply of the direct current output cathode end V+ output of rectifier circuit IC6 is through the protection of divider resistance R2 and diode D1, and the shunting of shunt resistance R3 forms the light-emitting diode in a lower electrical voltage point light electric coupling IC3, the 4th pin of photoelectrical coupler IC3 becomes by high level the 2nd pin that low level INT0 signal sends to single-chip microcomputer, after single-chip microcomputer IC4 obtains this low level INT0 signal, control its 3rd pin output high level O_RY1 signal to anodal control circuit, control simultaneously its 5th pin output low level O_MOS1 signal to the negative pole control circuit, anodal control circuit receives after this high level O_RY1 signal the collector electrode of triode Q1 and emitter conducting, thereby make the 2nd pin and the GND conducting of relay R LY1, relay R LY1 work, the 4th pin of RLY1 and the 5th pin adhesive, R9 is bypassed, the live wire CN3 of 120V alternating current end directly is converted to direct current by rectifier circuit IC6 and through excessive electric capacity E4 and large electric capacity E5 low frequency filtering, capacitor C 5 High frequency filters, obtain stable 150V direct current, by the CN5 interface, exported to the positive pole of load, the negative pole control circuit receives this low level O_MOS1 signal and makes photoelectrical coupler IC5 work, VEE is after photoelectrical coupler IC5, resistance R 7, resistance R 8 and voltage stabilizing didoe DZ1, make transistor MOS1 conducting, thereby make CN2 interface and VSS1 conducting, obtain the galvanic negative pole of 150V, by the CN2 interface, exported to the negative pole of load.
The composition of power circuit comprises: transformer TR1, rectifier circuit DB1, rectifier circuit DB2, large electric capacity E1, large electric capacity E2, large electric capacity E3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 6, discharge resistance R1 and voltage-stabiliser tube U1; The live wire CN3 of alternating current end and zero line CN4 termination enter the input of transformer TR1, and the output of transformer TR1 is connected with two inputs of rectifier circuit DB1 and two inputs of rectifier circuit DB2 respectively;
Two outputs of rectifier circuit DB1 successively and the electric capacity E1 of the United Nations General Assembly and capacitor C 2, the direct current output cathode end V+ of rectifier circuit DB1 is connected with the input of voltage-stabiliser tube U1, the direct current output negative pole end V-of rectifier circuit DB1 is connected with the earth terminal of voltage-stabiliser tube U1, and the output and ground of voltage-stabiliser tube U1 successively and the electric capacity E3 of the United Nations General Assembly, capacitor C 3 and capacitor C 6; The 120V alternating current, after transformer TR1 transformation, then passes through rectifier bridge DB1 rectification, and by large electric capacity E1 low frequency filtering and capacitor C 2 High frequency filters, acquisition+12V power supply is for relay R LY1 control coil.+ 12V power supply after voltage-stabiliser tube U1 voltage stabilizing, carries out filtering by large electric capacity E3, capacitor C 3 and capacitor C 6 again, and it is working power that acquisition+5V power supply offers single-chip microcomputer IC4, photoelectrical coupler IC5.
Two outputs of rectifier circuit DB2 successively and the electric capacity E2 of the United Nations General Assembly, capacitor C 1 and discharge resistance R1; Alternating current after transformer TR1 transformation, pass through rectifier bridge DB2 rectification simultaneously, by large electric capacity E2 and capacitor C 1, carries out filtering, obtains the VEE power supply for metal-oxide-semiconductor etc.Discharge resistance R1 is that electric capacity E2 discharges, and when system cut-off, can fast the tele-release in electric capacity be fallen, and can not deposit electricity because of electric capacity, and after outage, 150V direct current negative pole CN2 end also has output current.
The CN1 module is the program burn writing mouth of single-chip microcomputer IC4, the 4th pin of CN1 module is connected with the 6th pin with the 7th pin of single-chip microcomputer IC4 respectively with the 5th pin, the 3rd pin ground connection of CN1 module, the 2nd pin of CN1 module and the 1st pin of single-chip microcomputer IC4 connect+the 5V power supply, and the 1st pin of CN1 module is connected with the 4th pin of single-chip microcomputer IC4.
This change-over circuit can turn the 120V alternating current 150V direct current, in like manner, utilizes change-over circuit also the 220V alternating current can be converted to the 280V direct current.
After the operating current of load became direct current by alternating current, following benefit is arranged: 1, the reactive power of load diminished, and loaded work piece efficiency is higher, and power loss is less; 2, the EMF value of load is that the electromagnetic radiation value reduces to 0, and is less to the human body infringement.At present external, U.S. especially, require very sternly for EMF, and therefore, market application foreground of the present invention is very wide.
Claims (7)
1. a large electric current is for power conversion circuit, and it is characterized in that: the composition of described change-over circuit comprises: charge protector, anodal control circuit, negative pole control circuit, single-chip microcomputer IC4 and testing circuit;
Described charge protector is used to large capacitor charging;
Described anodal control circuit is for controlling the direct current of described charge protector stable output;
Described negative pole control circuit is for obtaining galvanic negative pole;
Whether described testing circuit has charged for detection of large electric capacity;
Described single-chip microcomputer IC4 is used for controlling described anodal control circuit and the negative pole control circuit carries out work.
2. large electric current according to claim 1, for power conversion circuit, is characterized in that, the composition of described charge protector comprises: current-limiting resistance R9, rectifier circuit IC6, large electric capacity E4, large electric capacity E5, capacitor C 5 and discharge resistance R10; The live wire CN3 end of alternating current is by the alternating current input AC-L of the described rectifier circuit IC6 of described current-limiting resistance R9 access, the zero line CN4 end of alternating current is the alternating current input AC-N of the described rectifier circuit IC6 of access directly, and the direct current output cathode end V+ of described rectifier circuit IC6 and direct current output negative pole end V-be described large electric capacity E4 in parallel, large electric capacity E5, capacitor C 5 and discharge resistance R10 successively.
3. large electric current according to claim 1, for power conversion circuit, is characterized in that, the composition of described testing circuit comprises: divider resistance R2, diode D1, shunt resistance R3 and photoelectrical coupler IC3; The end of described divider resistance R2 is connected with the direct current output cathode end V+ of described rectifier circuit IC6, the other end of described divider resistance R2 is connected with the negative electrode of diode D1, the anode of described diode D1 is connected with VSS1, the two ends of described diode D1 are two inputs of shunt resistance R3 in parallel and photoelectrical coupler IC3 successively, the 3rd pin of the described single-chip microcomputer IC4 of the 4th pin access of described photoelectrical coupler IC3.
4. large electric current according to claim 1, for power conversion circuit, is characterized in that, the composition of described anodal control circuit comprises: relay R LY1, diode D2, triode Q1 and resistance R 6; Described relay R LY1 is connected in parallel on the two ends of current-limiting resistance R9, the 2nd pin of described relay R LY1 is connected with the collector electrode of triode Q1 with the anode of diode D2, the base stage of described triode Q1 is connected with an end of resistance R 6, and the other end of described resistance R 6 is connected with the 3rd pin of described single-chip microcomputer IC4.
5. large electric current according to claim 1 is for power conversion circuit, it is characterized in that, the composition of described negative pole control circuit comprises: photoelectrical coupler IC5, resistance R 7, resistance R 8, voltage stabilizing didoe DZ1 and transistor MOS1, the input of described photoelectrical coupler IC5 is connected with the 5th pin of single-chip microcomputer IC4, the output of described photoelectrical coupler IC5 is connected with VEE, another output of described optical coupler IC5 is connected with an end of resistance R 7, the other end of described resistance R 7 is connected with the negative pole of voltage stabilizing didoe DZ1 with resistance R 8 respectively, the positive pole access VSS1 of the other end of described resistance R 8 and voltage stabilizing didoe DZ1, the grid of described transistor MOS1 is connected with the negative pole of voltage stabilizing didoe DZ1, the source electrode of described transistor MOS1 is connected with the positive pole of voltage stabilizing didoe DZ1.
6. large electric current according to claim 1, for power conversion circuit, is characterized in that, the composition of described change-over circuit also comprises power circuit, and described power circuit provides working power for described change-over circuit.
7. large electric current according to claim 6 is for power conversion circuit, it is characterized in that, the composition of described power circuit comprises: transformer TR1, rectifier circuit DB1, rectifier circuit DB2, large electric capacity E1, large electric capacity E2, large electric capacity E3, capacitor C 1, capacitor C 2, capacitor C 3, capacitor C 6, discharge resistance R1 and voltage-stabiliser tube U1; The live wire CN3 of described alternating current end and zero line CN4 termination enter the input of described transformer TR1, and the output of described transformer TR1 is connected with two inputs of rectifier circuit DB1 and two inputs of rectifier circuit DB2 respectively;
Two outputs of described rectifier circuit DB1 successively and the electric capacity E1 of the United Nations General Assembly and capacitor C 2, the direct current output cathode end V+ of described rectifier circuit DB1 is connected with the input of voltage-stabiliser tube U1, the direct current output negative pole end V-of described rectifier circuit DB1 is connected with the earth terminal of voltage-stabiliser tube U1, and the output and ground of described voltage-stabiliser tube U1 successively and the electric capacity E3 of the United Nations General Assembly, capacitor C 3 and capacitor C 6;
Two outputs of described rectifier circuit DB2 successively and the electric capacity E2 of the United Nations General Assembly, capacitor C 1 and discharge resistance R1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794829A (en) * | 2013-12-23 | 2014-05-14 | 深圳市三奇科技有限公司 | Method for improving pulse power supply of battery |
| CN112994243A (en) * | 2021-03-30 | 2021-06-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Low-current-driven large-current timing start-stop conversion control circuit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801564A (en) * | 2005-01-08 | 2006-07-12 | 艾默生网络能源系统有限公司 | Switching power supply with overvoltage protection and overvoltage protection method thereof |
| CN101477919A (en) * | 2009-01-23 | 2009-07-08 | 东南大学 | Intelligent control module for permanent magnet contactor |
| CN201654577U (en) * | 2010-01-28 | 2010-11-24 | 苏州新协力工业控制工程技术研究中心有限公司 | Intelligent temperature controller |
| CN201733238U (en) * | 2010-06-09 | 2011-02-02 | 深圳市晶福源电子技术有限公司 | Auxiliary power system |
| JP2012197998A (en) * | 2011-03-23 | 2012-10-18 | Panasonic Corp | Air conditioner |
| CN203368353U (en) * | 2013-07-29 | 2013-12-25 | 安徽桑乐金股份有限公司 | High-current power supply converting circuit |
-
2013
- 2013-07-29 CN CN201310322922XA patent/CN103401445A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1801564A (en) * | 2005-01-08 | 2006-07-12 | 艾默生网络能源系统有限公司 | Switching power supply with overvoltage protection and overvoltage protection method thereof |
| CN101477919A (en) * | 2009-01-23 | 2009-07-08 | 东南大学 | Intelligent control module for permanent magnet contactor |
| CN201654577U (en) * | 2010-01-28 | 2010-11-24 | 苏州新协力工业控制工程技术研究中心有限公司 | Intelligent temperature controller |
| CN201733238U (en) * | 2010-06-09 | 2011-02-02 | 深圳市晶福源电子技术有限公司 | Auxiliary power system |
| JP2012197998A (en) * | 2011-03-23 | 2012-10-18 | Panasonic Corp | Air conditioner |
| CN203368353U (en) * | 2013-07-29 | 2013-12-25 | 安徽桑乐金股份有限公司 | High-current power supply converting circuit |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103794829A (en) * | 2013-12-23 | 2014-05-14 | 深圳市三奇科技有限公司 | Method for improving pulse power supply of battery |
| CN112994243A (en) * | 2021-03-30 | 2021-06-18 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Low-current-driven large-current timing start-stop conversion control circuit |
| CN112994243B (en) * | 2021-03-30 | 2023-01-24 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | Conversion control circuit for starting and stopping large current at fixed time driven by small current |
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Application publication date: 20131120 |