CN104868770A - Control circuit of switching device - Google Patents

Control circuit of switching device Download PDF

Info

Publication number
CN104868770A
CN104868770A CN201510034255.4A CN201510034255A CN104868770A CN 104868770 A CN104868770 A CN 104868770A CN 201510034255 A CN201510034255 A CN 201510034255A CN 104868770 A CN104868770 A CN 104868770A
Authority
CN
China
Prior art keywords
switching
switch
control
electric current
control circuit
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.)
Granted
Application number
CN201510034255.4A
Other languages
Chinese (zh)
Other versions
CN104868770B (en
Inventor
陈汉威
游俊豪
刘家桦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
FSP Tech Inc
Original Assignee
FSP Tech Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US201461944587P priority Critical
Priority to US61/944,587 priority
Application filed by FSP Tech Inc filed Critical FSP Tech Inc
Priority claimed from US14/623,470 external-priority patent/US9741503B2/en
Publication of CN104868770A publication Critical patent/CN104868770A/en
Application granted granted Critical
Publication of CN104868770B publication Critical patent/CN104868770B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/36Means for starting or stopping converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/122Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters
    • H02H7/1225Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for inverters, i.e. dc/ac converters responsive to internal faults, e.g. shoot-through
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/12Arrangements for reducing harmonics from ac input or output
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02SGENERATION OF ELECTRIC POWER BY CONVERSION OF INFRA-RED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
    • H02S50/00Monitoring or testing of PV systems, e.g. load balancing or fault identification
    • H02M1/0003
    • H02M1/0048
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B70/00Technologies for an efficient end-user side electric power management and consumption
    • Y02B70/10Technologies 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
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/50Photovoltaic [PV] energy
    • Y02E10/56Power conversion systems, e.g. maximum power point trackers

Abstract

The present invention provides a control circuit of a switching device. A single output pin of a control unit outputs start signals to control ends of two switching units, so as to control open states of the two switching units and adjust the size of a control current used for controlling the conducting state of the switching device, wherein one switching unit switches to a close state in a period of preset time after receiving the start signal, so as to reduce power consumption of the switching device.

Description

The control circuit of switching device
Technical field
The present invention relates to a kind of control circuit, particularly relate to a kind of control circuit of switching device.
Background technology
Inverter (inverter) is a kind of power supply change-over device, and it is normally converted to interchange out-put supply by the switching of power semiconductor direct-current input power supplying.General photovoltaic parallel in system can arrange relay and electromagnetic interference (Electromagnetic Interference between inverter and electrical network, be called for short EMI) filter, relay can isolated inverter and electrical network, recharges to avoid electrical network burst current to cause inverter damage to inverter.
Although relay can effectively isolated inverter and electrical network, right relay needs larger electric current to start, in the prior art, fixing big current generally can be provided to carry out starting relay, so in fact relay only needs small area analysis to maintain the state of its unlatching after being activated, and thus will cause unnecessary electric energy loss.
Summary of the invention
The invention provides a kind of control circuit of switching device, the electric energy loss of switching device can be reduced.
The control circuit of switching device of the present invention comprises the first switch element, second switch unit and control unit.Wherein the first end of the first switch element and second switch unit couples switching device, and the second end of the first switch element and second switch unit couples ground connection.Control unit has an output connecting pin, couple the control end of the first switch element and second switch unit, the control end of enabling signal to the first switch element and second switch unit is exported from output connecting pin, with conducting first switch element and second switch unit, and produce on the common joint of the first switch element and second switch unit and control electric current, control the conducting state of electric current in order to control switch device, wherein the first switch element one section of Preset Time after receiving enabling signal transfers closed condition to.
In one embodiment of this invention, the first above-mentioned switch element and second switch unit are in the conducting state time-division indescribably for the first current path and the second current path, and control electric current and provide the first electric current and the second electric current to flow to the first current path and the second current path respectively with actuating switch device, wherein the current value of the first electric current is greater than the current value of the second electric current.
In one embodiment of this invention, the first above-mentioned switch element controls electric current when transferring closed condition to provides the second electric current to flow to the second current path to maintain the conducting state of switching device.
In one embodiment of this invention, the first above-mentioned switch element comprises transistor and capacitor cell.Wherein transistor couples is between switching device and ground connection.Between the control end of capacitor cell coupling transistors and output connecting pin.
In one embodiment of this invention, the first above-mentioned switch element also comprises discharge cell, and it is coupled between the control end of transistor and ground connection.
In one embodiment of this invention, above-mentioned discharge cell comprises diode, the control end of its negative electrode and positive electrode difference coupling transistors and ground connection.
In one embodiment of this invention, the control circuit of above-mentioned switching device, also comprises resistance, and it is coupled between the control end of transistor and capacitor cell.
In one embodiment of this invention, above-mentioned second switch unit comprises flow-restriction and transistor.Wherein flow-restriction is coupled to switching device.Transistor couples is between flow-restriction and ground connection, and the control end of transistor couples output connecting pin.
In one embodiment of this invention, above-mentioned flow-restriction is resistance.
In one embodiment of this invention, the control circuit of above-mentioned switching device also comprises resistance, and it is coupled between the control end of transistor and output connecting pin.
In one embodiment of this invention, above-mentioned switching device is relay.
Based on above-mentioned, embodiments of the invention are by exporting the control end of enabling signal to the first switch element and second switch unit from the output connecting pin of control unit, electric current is controlled to produce on the common joint of the first switch element and second switch unit, control the conducting state of electric current in order to control switch device, wherein the first switch element one section of Preset Time after receiving enabling signal transfers closed condition to, to reduce the electric energy loss of switching device.
For above-mentioned feature and advantage of the present invention can be become apparent, special embodiment below, and coordinate accompanying drawing to be described in detail below.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the control circuit of the switching device of one embodiment of the invention.
Fig. 2 is the schematic diagram of the control circuit of the switching device of another embodiment of the present invention.
Fig. 3 is the schematic diagram that the control circuit of the switching device of one embodiment of the invention is applied in photovoltaic parallel in system.
Description of reference numerals:
102: switching device;
104,106: switch element;
108: control unit;
110: inverter circuit;
120: Electromagnetic interference filter;
130: control circuit;
202: discharge cell;
204: flow-restriction;
P1: output connecting pin;
S1: enabling signal;
I1: control electric current;
I1', I2': electric current;
R1 ~ R4: resistance;
C1: capacitor cell;
Q1, Q2: transistor;
D1: diode;
PV: photovoltaic module;
EG: electrical network.
Embodiment
Fig. 1 is the schematic diagram of the control circuit of the switching device of one embodiment of the invention.Please refer to Fig. 1, the control circuit of switching device 102 comprises switch element 104, switch element 106 and control unit 108, wherein switching device 102 can be such as relay, switch element 104 couples switching device 102 with the first end of switch element 106, and switch element 104 is then coupled to ground connection with the second end of switch element 106.Control unit 108 has an output connecting pin P1, and it couples the control end of switch element 104 and switch element 106.
Control unit 108 can export enabling signal S1 to control end with switch element 106 of switch element 104 from its output connecting pin P1, with actuating switch unit 104 and switch element 106, and control electric current I 1, with the conducting state of control switch device 102 in switch element 104 and common joint (i.e. the common joint of the first end of switch element 104 and switch element 106) the upper generation of switch element 106.Wherein, switch element 104 and switch element 106 can provide the first current path and the second current path when being in conducting state respectively, and make control electric current I 1 provide electric current I 1' and electric current I 2' to flow to the first current path and the second current path respectively, namely control the summation that electric current I 1 is electric current I 1' and electric current I 2', the current value of electric current I 1' can be greater than the current value of electric current I 2' in some embodiments.It should be noted that, switch element 104 one section of Preset Time after receiving enabling signal S1 will transfer closed condition to, namely only surplus switch element 106 provides the second current path, and the current value controlling electric current I 1 equals the current value of electric current I 2', and causes the current value controlling electric current I 1 to diminish.Wherein, switching device 102 is switched on when switch element 104 and switch element 106 are in conducting state, and after switching device 102 is switched on, though switch element 104 transfers closed condition to, but the electric current I 2' that switch element 106 provides still can make switching device 102 maintain the state of conducting, therefore effectively can reduce electric energy loss when not affecting the operation of switching device 102.
Fig. 2 is the schematic diagram of the control circuit of the switching device of another embodiment of the present invention.Please refer to Fig. 2, in the present embodiment, switch element 104 can comprise resistance R1, resistance R2, capacitor cell C1, transistor Q1 and discharge cell 202, resistance R1 is coupled between the collector of switching device 102 and transistor Q1, transistor Q1 is coupled between resistance R1 and ground connection, resistance R2 and capacitor cell C1 is series between the control end (i.e. base stage) of transistor Q1 and the output connecting pin P1 of control unit 108, discharge cell 202 be coupled to transistor Q1 between control end and ground connection.Wherein, discharge cell 202 is in the present embodiment for implement with a diode D1, and the negative electrode and positive electrode of diode D1 distinguishes control end and the ground connection of coupling transistors Q1.
On the other hand, switch element 106 can comprise resistance R3, transistor Q2 and flow-restriction 204 in the present embodiment.Flow-restriction 204 is coupled between the collector of switching device 102 and transistor Q2, flow-restriction 204 is for implement with resistance R4 in the present embodiment, resistance R4 is coupled between the collector of switching device 102 and transistor Q2, flow-restriction 204 can also other modes be implemented in other embodiments, such as, implement with the resistance of more serial or parallel connection.The emitter-base bandgap grading of transistor Q2 is coupled to ground connection, and the control end (i.e. base stage) of transistor Q2 is then coupled to one end of resistance R3, and the other end of resistance R3 then couples control unit 108.In some embodiments, above-mentioned switch element 104 also can not comprise resistance R1, resistance R2, and switch element 106 can not comprise resistance R3, namely the collector of transistor Q1 and control end directly can be coupled to switching device 102 and capacitor cell C1 respectively, and the control end of transistor Q2 can directly be coupled to control unit 108.
When for starting switch device 102, the base stage of the exportable enabling signal S1 of control unit 108 to transistor Q1 and transistor Q2, enabling signal S1 is a current signal in the present embodiment.Enabling signal S1 can turn-on transistor Q1 and transistor Q2, and produces on switch element 104 with the common joint of switch element 106 and control electric current I 1, and then opening switch device 102.The electric current wherein flowing to capacitor cell C1 gradually will hold unit C1 by full charging, after one section of Preset Time, capacitor cell C1 will present the state of open circuit, make transistor Q1 enter the state of closedown, and cannot continue to supply electric current I 1', and then control electric current I 1 is diminished.On the other hand, the electric current provided due to control unit 108 is still output to the base stage of transistor Q2 sustainably, and therefore transistor Q2 supplies electric current I 2' sustainably, and makes switching device 102 maintain the state of unlatching.Wherein the size of electric current I 2' adjusts by flow-restriction 204, and as in the present embodiment, when the resistance of resistance R4 increases, electric current I 2' will diminish.
So provide large control electric current I 1 (=I1'+I2') can opening switch device 102 (as relay) in the early stage by control circuit, and after switching device 102 is activated, the control electric current I 1 (=I2') that changing into provides less can continue the opening maintaining switching device 102, and can reduce the loss of electric energy.In addition, embodiments of the invention only need single output connecting pin P1 can reach the conducting state of control switch unit 104 and switch element 106, and then change the effect controlling electric current I 1 size.
The application of the control circuit of switching device can such as shown in Fig. 3.Fig. 3 is the schematic diagram that the control circuit of the switching device of one embodiment of the invention is applied in photovoltaic parallel in system.Please refer to Fig. 3, photovoltaic parallel in system can comprise photovoltaic module PV, switching device 102, inverter circuit 110, Electromagnetic interference filter 120, control circuit 130 and electrical network EG.Wherein inverter circuit 110 couples photovoltaic module PV and switching device 102, control circuit 130 couple switching device 102, Electromagnetic interference filter 120 couples switching device 102 and electrical network EG.
Photovoltaic module PV can react the intensity output dc voltage of sunlight to inverter circuit 110, the electrical network EG exporting to rear end to allow inverter circuit 110 that direct voltage is converted to alternating voltage uses, and Electromagnetic interference filter 120 is arranged at the electromagnetic noise that can suppress alternating voltage between inverter circuit 110 and electrical network EG.In addition, switching device 102 is controlled by control circuit 130 and changes its conducting state, and then is isolated with electrical network EG by inverter circuit 110, and switching device 102 is relay in the present embodiment.Wherein control circuit 130 can be implemented as the mode as described in above-described embodiment, does not repeat them here.The conducting state carrying out control switch device 102 by control circuit 130 not only can isolated inverter and electrical network effectively, and avoid electrical network to recharge burst current causes inverter damage to inverter, also can change the state of opening to maintain it with small area analysis after switching device 102 is activated, and unnecessary electric energy loss can be reduced.
In sum, the present invention exports the control end of enabling signal to two switch element by the single output connecting pin of control unit, to control the opening of two switch elements, and then adjustment is in order to the control size of current of the conducting state of control switch device, wherein a switch element one section of Preset Time after receiving enabling signal transfers closed condition to, to reduce the electric energy loss of switching device.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.

Claims (11)

1. a control circuit for switching device, is characterized in that, comprising:
First switch element;
Second switch unit, the first end of this first switch element and this second switch unit couples this switching device, and the second end of this first switch element and this second switch unit couples ground connection; And
Control unit, there is output connecting pin, couple the control end of this first switch element and this second switch unit, the control end of enabling signal to this first switch element and this second switch unit is exported from this output connecting pin, with this first switch element of conducting and this second switch unit, and produce on the common joint of this first switch element and this second switch unit and control electric current, this control electric current is in order to control the conducting state of this switching device, and wherein this first switch element Preset Time after receiving this enabling signal transfers closed condition to.
2. the control circuit of switching device according to claim 1, it is characterized in that, this first switch element and this second switch unit are in the conducting state time-division indescribably for the first current path and the second current path, and this control electric current provides the first electric current and the second electric current to flow to this first current path and this second current path respectively with this switching device of conducting, wherein the current value of this first electric current is greater than the current value of this second electric current.
3. the control circuit of described switching device according to claim 2, is characterized in that, when this first switch element transfers closed condition to, this control electric current provides this second electric current to flow to this second current path to maintain the conducting state of this switching device.
4. the control circuit of switching device according to claim 1, is characterized in that, this first switch element comprises:
Transistor, is coupled between this switching device and this ground connection; And
Capacitor cell, couples between the control end of this transistor and this output connecting pin.
5. the control circuit of switching device according to claim 4, is characterized in that, this first switch element also comprises:
Discharge cell, is coupled between the control end of this transistor and this ground connection.
6. the control circuit of switching device according to claim 5, is characterized in that, this discharge cell comprises:
Diode, its negative electrode and positive electrode couples control end and this ground connection of this transistor respectively.
7. the control circuit of switching device according to claim 4, is characterized in that, also comprises:
Resistance, is coupled between the control end of this transistor and this capacitor cell.
8. the control circuit of switching device according to claim 1, is characterized in that, this second switch unit comprises:
Flow-restriction, is coupled to this switching device; And
Transistor, is coupled between this flow-restriction and this ground connection, and the control end of this transistor couples this output connecting pin.
9. the control circuit of switching device according to claim 8, is characterized in that, this flow-restriction is resistance.
10. the control circuit of switching device according to claim 8, is characterized in that, also comprises:
Resistance, is coupled between the control end of this transistor and this output connecting pin.
The control circuit of 11. switching devices according to claim 1, is characterized in that, this switching device is relay.
CN201510034255.4A 2014-02-26 2015-01-23 The control circuit of switching device Active CN104868770B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US201461944587P true 2014-02-26 2014-02-26
US61/944,587 2014-02-26

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14/623,470 US9741503B2 (en) 2014-02-26 2015-02-16 Control circuit of switch device

Publications (2)

Publication Number Publication Date
CN104868770A true CN104868770A (en) 2015-08-26
CN104868770B CN104868770B (en) 2017-07-14

Family

ID=53672198

Family Applications (13)

Application Number Title Priority Date Filing Date
CN201510031553.8A Active CN104868764B (en) 2014-02-26 2015-01-22 Inverter and its power conversion method
CN201510034255.4A Active CN104868770B (en) 2014-02-26 2015-01-23 The control circuit of switching device
CN201520047286.9U Active CN204465376U (en) 2014-02-26 2015-01-23 Inverter and alternating current voltage sampling circuit thereof
CN201510039793.2A Active CN104868493B (en) 2014-02-26 2015-01-27 Inverter and its control method
CN201510039854.5A Pending CN104865458A (en) 2014-02-26 2015-01-27 Inversion device and method for detecting operation of island
CN201510039055.8A Pending CN104868766A (en) 2014-02-26 2015-01-27 Inversion device and AC power supply system applying same
CN201510078647.0A Active CN104868767B (en) 2014-02-26 2015-02-13 Inverter and its control method
CN201510078631.XA Active CN104901566B (en) 2014-02-26 2015-02-13 Inverter and its control method
CN201510079043.8A Pending CN104917414A (en) 2014-02-26 2015-02-13 Inverting apparatus and control method thereof
CN201510083292.4A Active CN104917455B (en) 2014-02-26 2015-02-16 Inverting apparatus and photovoltaic power system using the same
CN201510083338.2A Active CN104917413B (en) 2014-02-26 2015-02-16 Inverter and its control method
CN201510083340.XA Active CN104917361B (en) 2014-02-26 2015-02-16 Inverter and its control method
CN201510083477.5A Active CN104935199B (en) 2014-02-26 2015-02-16 Inverter

Family Applications Before (1)

Application Number Title Priority Date Filing Date
CN201510031553.8A Active CN104868764B (en) 2014-02-26 2015-01-22 Inverter and its power conversion method

Family Applications After (11)

Application Number Title Priority Date Filing Date
CN201520047286.9U Active CN204465376U (en) 2014-02-26 2015-01-23 Inverter and alternating current voltage sampling circuit thereof
CN201510039793.2A Active CN104868493B (en) 2014-02-26 2015-01-27 Inverter and its control method
CN201510039854.5A Pending CN104865458A (en) 2014-02-26 2015-01-27 Inversion device and method for detecting operation of island
CN201510039055.8A Pending CN104868766A (en) 2014-02-26 2015-01-27 Inversion device and AC power supply system applying same
CN201510078647.0A Active CN104868767B (en) 2014-02-26 2015-02-13 Inverter and its control method
CN201510078631.XA Active CN104901566B (en) 2014-02-26 2015-02-13 Inverter and its control method
CN201510079043.8A Pending CN104917414A (en) 2014-02-26 2015-02-13 Inverting apparatus and control method thereof
CN201510083292.4A Active CN104917455B (en) 2014-02-26 2015-02-16 Inverting apparatus and photovoltaic power system using the same
CN201510083338.2A Active CN104917413B (en) 2014-02-26 2015-02-16 Inverter and its control method
CN201510083340.XA Active CN104917361B (en) 2014-02-26 2015-02-16 Inverter and its control method
CN201510083477.5A Active CN104935199B (en) 2014-02-26 2015-02-16 Inverter

Country Status (2)

Country Link
CN (13) CN104868764B (en)
TW (13) TWI565221B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI551021B (en) * 2015-11-25 2016-09-21 財團法人金屬工業研究發展中心 Flyback power converter and control method thereof
CN105529743B (en) * 2016-02-22 2018-12-18 珠海格力电器股份有限公司 A kind of photovoltaic system and grid-connected power detecting method, device
CN107026606A (en) * 2016-08-29 2017-08-08 广西塔锡科技有限公司 A kind of anti-phase transformer of photovoltaic
CN106353614B (en) * 2016-08-29 2020-01-21 许继集团有限公司 Island detection method and device for direct current system
CN106443343A (en) * 2016-09-30 2017-02-22 国网福建省电力有限公司 Small-current grounding fault positioning method employing transient zero sequence current
CN106787624A (en) * 2016-12-28 2017-05-31 滁州品之达电器科技有限公司 A kind of control method of inverter
CN106921146B (en) * 2017-03-20 2019-09-13 特变电工西安电气科技有限公司 A kind of the switching overvoltage protective device and method of multilevel photovoltaic grid-connected inverter
CN106972771A (en) * 2017-05-23 2017-07-21 唐瑭 A kind of level approach method, level approach device and control device
CN107171289A (en) * 2017-06-06 2017-09-15 江西科技学院 A kind of protection circuit
JP2019082843A (en) 2017-10-30 2019-05-30 オムロン株式会社 Ground fault detection device
CN108270239A (en) * 2018-01-30 2018-07-10 国网上海市电力公司 A kind of distribution network electric energy quality disturbing source direction determining method containing distributed generation resource
CN111256345B (en) * 2018-11-30 2021-05-07 杭州先途电子有限公司 Photovoltaic air conditioner control method, controller and photovoltaic air conditioner
TWI703423B (en) 2019-06-19 2020-09-01 群光電能科技股份有限公司 Power supply device and a power supply method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1615582A (en) * 2001-11-20 2005-05-11 沃思电子埃索斯有限责任两合公司 Circuit arrangement for the reliable switching of electrical circuits
TW200818671A (en) * 2006-10-05 2008-04-16 Holtek Semiconductor Inc Direct-current (DC) power switching device
CN202888934U (en) * 2012-11-13 2013-04-17 国家电网公司 Soft start circuit and charger
US20130155735A1 (en) * 2011-12-16 2013-06-20 Milan Ilic Stacked voltage source inverter with separate dc sources

Family Cites Families (83)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5327335A (en) * 1992-09-28 1994-07-05 Sundstrand Corporation Harmonic feedback control for an inverter
CN2189792Y (en) * 1994-04-28 1995-02-15 巫忆陵 High and low voltage relay with backlash
JP3227480B2 (en) * 1996-05-29 2001-11-12 シャープ株式会社 Inverter device islanding operation detection method and inverter device
US6038142A (en) * 1998-06-10 2000-03-14 Lucent Technologies, Inc. Full-bridge isolated Current Fed converter with active clamp
JP2002233045A (en) * 2001-02-02 2002-08-16 Canon Inc Ground detecting device for photovoltaic power generation system and method
JP2002252986A (en) * 2001-02-26 2002-09-06 Canon Inc Inverter, power supply system and method for reducing leakage current in power supply system
JP2002367768A (en) * 2001-06-04 2002-12-20 Matsushita Electric Ind Co Ltd Power source for driving magnetron
JP2003018854A (en) * 2001-07-02 2003-01-17 Honda Motor Co Ltd Resonance-type inverter device
JP2003098215A (en) * 2001-09-26 2003-04-03 Canon Inc Earth detection method and device in power conversion system
TW548886B (en) * 2001-10-16 2003-08-21 Know Entpr Co Ltd U Three-phase shunt type active power filter capable of operating in parallel
US6980445B2 (en) * 2002-01-08 2005-12-27 Sanken Electric Co., Ltd. Power factor improving converter and control method thereof
US7492620B2 (en) * 2002-11-29 2009-02-17 Rohm Co., Ltd. DC-AC converter and controller IC thereof
US7015597B2 (en) * 2003-09-11 2006-03-21 Square D Company Power regulator for power inverter
WO2005045547A1 (en) * 2003-11-10 2005-05-19 Tokyo Denki University Solar photovoltaic power generation apparatus
TWI232361B (en) * 2003-11-25 2005-05-11 Delta Electronics Inc Maximum-power tracking method and device of solar power generation system
JP4637855B2 (en) * 2003-12-22 2011-02-23 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Switch mode power supply
TWI296457B (en) * 2006-01-18 2008-05-01 Univ Yuan Ze High-performance power conditioner for solar photovoltaic system
TWI296460B (en) * 2006-01-18 2008-05-01 Univ Yuan Ze High-performance power conditioner for clean energy with low input voltage
CN101379685B (en) * 2006-03-02 2014-04-09 半导体元件工业有限责任公司 Method and circuit for adjusting voltage
TWI320626B (en) * 2006-09-12 2010-02-11 Ablerex Electronics Co Ltd Bidirectional active power conditioner
US7495410B2 (en) * 2007-01-30 2009-02-24 Rockwell Automation Technologies, Inc. Systems and methods for improved motor drive power factor control
KR101194833B1 (en) * 2007-08-03 2012-10-25 페어차일드코리아반도체 주식회사 Inverter driver device and lamp driver device thereof
US7945413B2 (en) * 2007-09-04 2011-05-17 Solarbridge Technologies, Inc. Voltage-sensed system and method for anti-islanding protection of grid-connected inverters
AT492066T (en) * 2007-09-05 2011-01-15 Abb Oy On phase to three-phase converter
US7986539B2 (en) * 2007-09-26 2011-07-26 Enphase Energy, Inc. Method and apparatus for maximum power point tracking in power conversion based on dual feedback loops and power ripples
US7768242B2 (en) * 2007-10-01 2010-08-03 Silicon Laboratories Inc. DC/DC boost converter with resistorless current sensing
US20100157632A1 (en) * 2008-12-20 2010-06-24 Azuray Technologies, Inc. Energy Conversion Systems With Power Control
US8796884B2 (en) * 2008-12-20 2014-08-05 Solarbridge Technologies, Inc. Energy conversion systems with power control
KR20110104525A (en) * 2008-12-20 2011-09-22 애즈레이 테크놀로지즈, 아이엔씨. Energy conversion systems with power control
US8598741B2 (en) * 2008-12-23 2013-12-03 Samsung Electro-Mechanics Co, Ltd. Photovoltaic and fuel cell hybrid generation system using single converter and single inverter, and method of controlling the same
CN101795076B (en) * 2009-01-29 2015-04-15 富士电机株式会社 Power converter and method for controlling power converter
CN201438776U (en) * 2009-04-16 2010-04-14 永磁电子(东莞)有限公司 High-frequency generator circuit of electrodeless lamp
CN201392462Y (en) * 2009-04-22 2010-01-27 陈国真 Energy-saving switch device
CN101552572B (en) * 2009-05-18 2011-01-05 浙江大学 Parallel inverter current control method adopting voltage differential compensation
WO2011010388A1 (en) * 2009-07-24 2011-01-27 Necディスプレイソリューションズ株式会社 Switching power source and electronic device using the same
JP4913849B2 (en) * 2009-07-29 2012-04-11 山洋電気株式会社 System-linked inverter device and control method thereof
US20110044083A1 (en) * 2009-08-20 2011-02-24 Christopher Thompson Adaptive Photovoltaic Inverter
TWI393333B (en) * 2009-09-22 2013-04-11 Richpower Microelectronics Controller chip and protection method for a power converter
TWM380576U (en) * 2009-11-02 2010-05-11 Ampower Technology Co Ltd Photovoltaic module and power supply system using the same
CN101728957B (en) * 2009-11-24 2011-09-28 华东交通大学 Method for reducing no-load loss of inverter with two-stage structure
CN102118018B (en) * 2009-12-31 2015-07-08 天津市松正电动汽车技术股份有限公司 Protection circuit with functions of upper limit and lower limit
US8362732B2 (en) * 2010-02-02 2013-01-29 GM Global Technology Operations LLC Motor phase winding fault detection method and apparatus
CN102148584B (en) * 2010-02-10 2013-04-17 上海英孚特电子技术有限公司 Compensation method of direct current (DC) voltage fluctuation of photovoltaic grid-connected inverter
BR112012021083A2 (en) * 2010-02-22 2018-04-03 Petra Solar Inc method and system for controlling resonant converters used in solar inverters
KR101090263B1 (en) * 2010-03-08 2011-12-07 헥스파워시스템(주) Ground fault detection device and method with direct current wire for system of photovoltaic power generation
JP5045772B2 (en) * 2010-03-11 2012-10-10 オムロン株式会社 Capacitor capacity missing detection method in power conditioner, power conditioner for implementing the same, and photovoltaic power generation system including the same
KR101089906B1 (en) * 2010-04-02 2011-12-05 삼성전기주식회사 Maximum power point tracker, power conversion controller, power inverter of insulating structure, and method for maximum power point tracking of power inverter
US9673729B2 (en) * 2010-06-25 2017-06-06 Massachusetts Institute Of Technology Power processing methods and apparatus for photovoltaic systems
CN101950976B (en) * 2010-08-25 2012-11-28 常熟开关制造有限公司(原常熟开关厂) Grid-connected operation method of grid-connected type photovoltaic inverter
CN101950985B (en) * 2010-11-01 2013-07-03 上海兆能电力电子技术有限公司 Method for suppressing output harmonic wave and direct current component of single-phase grid-combined photovoltaic inverter
TWM408678U (en) * 2010-11-16 2011-08-01 Allis Electric Co Ltd Photovoltaic powered system
US8531123B2 (en) * 2010-12-20 2013-09-10 O2Micro, Inc. DC/DC converter with multiple outputs
CN102025291A (en) * 2010-12-20 2011-04-20 东南大学 Photovoltaic assembly with MPPT (Maximum Power Point Tracking) module
EP2477298B1 (en) * 2011-01-15 2021-04-21 GE Energy Power Conversion Technology Limited Controllers for static energy supply units
CN102118028B (en) * 2011-01-27 2013-01-23 华中科技大学 Method for suppressing and controlling current harmonics of three-phase LCL (Lower Control Limit) type grid-connected inverter
CN102130610B (en) * 2011-01-31 2013-02-27 天津大学 Method for controlling constant-voltage discharging of energy storage system of flywheel
JP2012173773A (en) * 2011-02-17 2012-09-10 Toshiba Corp Power conversion device
TW201250429A (en) * 2011-06-15 2012-12-16 Solarrich Applied Energy & Technology Co Ltd Method for optimizing output power of solar cell
CN102223100A (en) * 2011-06-17 2011-10-19 北京中能清源科技有限公司 Control method of three-phase grid-connected inverter based on modified proportional resonant regulator
CN102244497B (en) * 2011-07-08 2013-05-08 大禹电气科技股份有限公司 Frequency conversion control method and device
CN102904273B (en) * 2011-07-29 2015-05-20 通用电气公司 Maximum power point tracking (MPPT) control of energy conversion system and relevant method
TWI444807B (en) * 2011-08-23 2014-07-11 Univ Nat Cheng Kung Analog control apparatus of inverter
CN102307007B (en) * 2011-09-13 2013-11-06 矽力杰半导体技术(杭州)有限公司 PFC (power factor correction) control circuit based on master-slave interlaced critical conduction mode and control method thereof
CN202372616U (en) * 2011-11-25 2012-08-08 比亚迪股份有限公司 Signal fault detection circuit
TWI481146B (en) * 2011-12-02 2015-04-11 Darfon Electronics Corp Off-grid solar inverter system without a battery and control method thereof
TWM426948U (en) * 2011-12-09 2012-04-11 Topper Sun Energy Technology Improvement of solar power generation system inverter
US9653923B2 (en) * 2011-12-12 2017-05-16 Avago Technologies General Ip (Singapore) Pte. Ltd. Resonant power management architectures
CN102496960A (en) * 2011-12-24 2012-06-13 朱建国 Photovoltaic grid-connected inverter and method for reducing working loss of photovoltaic grid-connected inverter
CN102611341B (en) * 2012-03-12 2014-07-30 深圳市英威腾电气股份有限公司 Photovoltaic inverter and method for tracking maximum power of same
TWI464555B (en) * 2012-03-22 2014-12-11 中原大學 Photovoltaic system having power-increment-aided incremental-conductance maximum power point tracking controller using constant-frequency variable-duty control and method thereof
CN102611141A (en) * 2012-03-30 2012-07-25 南京大学 MPPT (maximum power point tracking) control device and method of photovoltaic inverter based on perturbation method
TW201349724A (en) * 2012-05-25 2013-12-01 Delta Electronics Inc Power converter and method for controlling the same
CN202872384U (en) * 2012-07-24 2013-04-10 华南理工大学 Three-ring control device of single-stage photovoltaic grid-connected inversion system
CN102882401A (en) * 2012-09-19 2013-01-16 华为技术有限公司 Inverter with wide voltage input range and input-stage circuit thereof
CN102880223A (en) * 2012-09-27 2013-01-16 易霸科技(威海)股份有限公司 Analog circuit implementation method for MPPT (maximum power point tracking) of low-power photovoltaic inverter system
CN202880967U (en) * 2012-10-19 2013-04-17 深圳市天源新能源有限公司 Photovoltaic seawater desalination system and photovoltaic seawater desalination inverter
CN203135741U (en) * 2013-01-05 2013-08-14 苏州泽众新能源科技有限公司 Multifunctional power converter
TWI466403B (en) * 2013-01-30 2014-12-21 Chicony Power Tech Co Ltd Solar energy conversion apparatus
CN203243242U (en) * 2013-03-19 2013-10-16 广东工业大学 Single-phase photovoltaic grid-connected inverter
CN103337901B (en) * 2013-06-28 2016-03-30 华为技术有限公司 The method of uninterrupted power supply and uninterrupted power supply
CN203387430U (en) * 2013-07-25 2014-01-08 天津大学 Micro photovoltaic grid connected inverter for optimization of direct current bus capacitor
CN103501555B (en) * 2013-09-25 2015-02-18 电子科技大学 Digital phase locking and frequency tracking electromagnetic induction heating power controller
CN103558496B (en) * 2013-11-14 2016-08-17 阳光电源股份有限公司 A kind of one pole earthed system and failure detector, method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1615582A (en) * 2001-11-20 2005-05-11 沃思电子埃索斯有限责任两合公司 Circuit arrangement for the reliable switching of electrical circuits
TW200818671A (en) * 2006-10-05 2008-04-16 Holtek Semiconductor Inc Direct-current (DC) power switching device
US20130155735A1 (en) * 2011-12-16 2013-06-20 Milan Ilic Stacked voltage source inverter with separate dc sources
CN202888934U (en) * 2012-11-13 2013-04-17 国家电网公司 Soft start circuit and charger

Also Published As

Publication number Publication date
TW201534037A (en) 2015-09-01
TW201534032A (en) 2015-09-01
CN104865458A (en) 2015-08-26
TWI554020B (en) 2016-10-11
TWI539735B (en) 2016-06-21
CN104868767B (en) 2017-11-14
TW201534038A (en) 2015-09-01
TWI548195B (en) 2016-09-01
CN104868766A (en) 2015-08-26
CN104868764B (en) 2017-08-04
TW201534034A (en) 2015-09-01
CN104917413A (en) 2015-09-16
CN104868493B (en) 2019-02-05
TWI548200B (en) 2016-09-01
CN104935199B (en) 2018-03-13
TW201534020A (en) 2015-09-01
TWI554019B (en) 2016-10-11
TWI535174B (en) 2016-05-21
CN104917413B (en) 2017-08-15
CN104917414A (en) 2015-09-16
TW201534040A (en) 2015-09-01
TWI556567B (en) 2016-11-01
CN104917361B (en) 2018-04-13
TW201534048A (en) 2015-09-01
TW201534036A (en) 2015-09-01
CN104868493A (en) 2015-08-26
CN104917455B (en) 2017-05-17
CN104917361A (en) 2015-09-16
TWI565221B (en) 2017-01-01
CN104917455A (en) 2015-09-16
CN104868767A (en) 2015-08-26
TW201534031A (en) 2015-09-01
TWM513513U (en) 2015-12-01
CN104868764A (en) 2015-08-26
CN104901566A (en) 2015-09-09
CN104935199A (en) 2015-09-23
TW201534041A (en) 2015-09-01
CN204465376U (en) 2015-07-08
TW201534039A (en) 2015-09-01
TWI548197B (en) 2016-09-01
TWI565177B (en) 2017-01-01
TWI548192B (en) 2016-09-01
TW201534035A (en) 2015-09-01
CN104901566B (en) 2018-01-19
CN104868770B (en) 2017-07-14
TWI565203B (en) 2017-01-01

Similar Documents

Publication Publication Date Title
KR101925528B1 (en) Localized power point optimizer for solar cell installations
CN105164885B (en) Electric control system, power control unit and the method for controlling electric control system
CN101728982B (en) Power converting circuit and power converting method
CN102969893B (en) A kind of high gain boost type DC converter
CN101714816B (en) Power electronic module pre-charge system and method
US9166434B2 (en) Universal charger
CN202651863U (en) Charger and charging system
CN103762691A (en) Battery charging device and battery charging protection control method
TWI527356B (en) Power supply device and its operation method
CN103841725B (en) To release control module, controllable silicon light modulation LED drive circuit and system
CN102810980B (en) Power supply unit
TW201534040A (en) Control circuit of switch apparatus
US10090701B2 (en) Solar power generation system
JP6246771B2 (en) Photovoltaic power generation system and control method thereof
CN101946392A (en) Photovoltaic inverter interface device, system, and method
CN102163851A (en) Control method for power source converter
CN104377762B (en) A kind of photovoltaic charger control device and control method
CN105144531A (en) Power control system, power control device, and method for controlling power control system
US8432143B2 (en) Electrically parallel connection of photovoltaic modules in a string to provide a DC voltage to a DC voltage bus
CN101711071B (en) LED control circuit and LED device
CN103345903B (en) A kind of LED backlight system and display device
CN101815386A (en) LED lamp and control circuit thereof
CN106464135B (en) Power switched grade and method for controlling the power switched grade
CN102324841B (en) Multi-input high-gain boost converter
US9293925B2 (en) Charging and power supplying circuit, method and application device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant