CN103501120A - Capacitor type rectifying and step-down voltage regulator circuit - Google Patents
Capacitor type rectifying and step-down voltage regulator circuit Download PDFInfo
- Publication number
- CN103501120A CN103501120A CN201310495516.3A CN201310495516A CN103501120A CN 103501120 A CN103501120 A CN 103501120A CN 201310495516 A CN201310495516 A CN 201310495516A CN 103501120 A CN103501120 A CN 103501120A
- Authority
- CN
- China
- Prior art keywords
- voltage
- capacitor
- circuit
- diode
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Rectifiers (AREA)
Abstract
The invention discloses a capacitor type rectifying and step-down voltage regulator circuit. In the process of alternating current rectification, by utilizing the controllability of a self-turnoff device and the unilateral conductivity of diodes, a first capacitor composes serial charging via a charging diode and a second capacitor. When alternating-current voltage is lower than the voltage of the second capacitor, both ends of a blocking diode generate driving voltage for the self-turnoff device to drive the self-turnoff device to turn on, and the first capacitor carries out parallel charging on the second capacitor; and when output voltage reaches a required value, a voltage regulating control circuit controls the self-turnoff device to turn off in order to obtain stable direct-current voltage output used by an electricity-consuming load. Thus, the process of alternating current-to-direct current voltage-regulated transformation is simplified, and the purpose of utilizing the capacitors for rectification and step-down voltage regulation is achieved. The capacitor type rectifying and step-down voltage regulator circuit has the advantages of simple structure, low cost, high efficiency, high power factor and the like, and breaks through the bottleneck that the service life of the inductor type switching power supply is short due to high switching frequency.
Description
Technical field
The present invention relates to a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuit, specially refer to and utilize the power electronic technology control capacitor to carry out rectification voltage-dropping type voltage stabilizing circuit to alternating current.
Background technology
Along with the development of electronic technology, electronic product is constantly universal, as the D.C. regulated power supply of the requisite power supply of electronic product, applies more and more extensive.Existing alternating current is transformed into galvanic mode and substantially is divided into two kinds, a kind of be alternating current first through the transformer transformation to required voltage, and then after rectifying and wave-filtering, then carry out voltage stabilizing; After another kind is AC rectification, carry out the alternating current that switch change-over becomes upper frequency, then after higher transformer or inductor conversion, secondary rectifying and wave-filtering, voltage stabilizing, export required direct current through conversion frequency successively.Although the first conversion regime is simple in structure, volume of transformer is large, efficiency and power factor low, to use, make troubles; Although the second conversion regime has adopted transformer and inductor that conversion frequency is high, has reduced the circuit volume, exist high frequency conversion to produce electromagnetism harmonic wave and pollution, and this mode adopted the secondary rectification, reduced conversion efficiency.Therefore, finding that a kind of transless and volume are little, efficiency and the high regulator rectifier circuit of power factor, to meet the demand of electronic market rapid growth, is that the researcher makes great efforts the difficult problem solved for many years always.
Summary of the invention
Change galvanic deficiency for existing alternating current, the technical problem to be solved in the present invention is that a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuit is provided.This voltage stabilizing circuit has been brought into play the little and advantage capacious of electrolytic capacitor volume, in the AC rectification process, utilize self-turn-off device controllable characteristics and diode unilateal conduction characteristic, by the unidirectional current obtained after AC rectification, through a blocking diode blocking-up reverse voltage, first capacitor forms serial connection charge through a charging diode and second capacitor.When the alternating voltage of input, during lower than the terminal voltage of second capacitor, the blocking diode two ends produce the driving voltage that reverse voltage is self-turn-off device, drive the self-turn-off device conducting, first capacitor through discharge diode to second discharging capacitors; When output voltage reaches required value, controlling circuit of voltage regulation is controlled self-turn-off device and is turn-offed, and presses output to obtain galvanic current, for using electric loading.And then simplified from alternating current to galvanic voltage stabilizing conversion process, reached the purpose of utilizing capacitor rectification, step-down and voltage stabilizing.
The technical solution adopted for the present invention to solve the technical problems is that a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuit consists of input L and N, rectification circuit, drive circuit, switching circuit, controlling circuit of voltage regulation, output E-, E+ and load Rfz.Job step and the physical process of this circuit are: alternating current, after common mode inductance and filter capacitor filtering, is rectified into Rectified alternating current by rectifier bridge, through blocking diode and charging diode, two capacitors is carried out to the tandem charging; When input ac voltage, lower than output dc voltage and while reaching the predetermined control value, blocking diode produces driving voltage and drives the self-turn-off device conducting, through discharge diode and current-limiting inductance, realizes that first capacitor is to second parallel electric discharge; When output voltage reaches required value, voltage comparator in controlling circuit of voltage regulation is controlled the light-emitting diode work in photoelectrical coupler, reception triode conducting in photoelectrical coupler in photoelectric coupling makes drive circuit, the control self-turn-off device turn-offs, the control of realization to second capacitor terminal voltage, and then reach the purpose of controlling voltage stabilizing output; When self-turn-off device turn-offs, the electromagnetic energy be stored in current-limiting inductance is discharged in second capacitor through the resilience diode.
Described rectification circuit consists of common mode inductance L1, filtering capacitor CL and rectifier bridge DQ; Described drive circuit consists of the receiving tube DG that drives resistance R 1, discharge in resistance R 2, voltage stabilizing didoe DW1, blocking diode D1, photoelectrical coupler; Described switching circuit consists of first charging capacitor C1 and second charging capacitor C2, discharge diode D2 and charging diode D3, current-limiting inductance L2, resilience diode D4 and self-turn-off device V; Described controlling circuit of voltage regulation consists of luminous tube FG and the voltage comparator B of photoelectrical coupler.Described self-turn-off device can adopt pliotron, power field effect pipe, and IGBT and GTO etc. has can control the semiconductor power device that turn-offs attribute.
A kind of capacitor-type rectification voltage-dropping type each inside circuit of voltage stabilizing circuit and between annexation be, the input N of alternating current is connected with an end of the winding of common mode inductance L1 in described rectification circuit, and the other end of this winding is connected to the end of filtering capacitor CL and the end that exchanges input of rectifier bridge DQ; The input L of alternating current is connected with an end of another winding of common mode inductance L1 of described rectification circuit, and the other end of this winding is connected to the other end of filtering capacitor CL and the other end that exchanges input of rectifier bridge DQ; The negative pole of one end of the driving resistance R 1 that the positive potential of rectifier bridge DQ output is interior with described drive circuit, the discharge diode D2 in described switching circuit and the E+ of DC output end are connected; The negative potential of the rectifier bridge DQ output in described rectification circuit is connected with the negative pole of the blocking diode D1 in described drive circuit; The positive pole of the blocking diode D1 that the negative pole of first charging capacitor C1 in described switching circuit and the negative electrode of self-turn-off device V are interior with described drive circuit is connected; The luminous tube FG photoelectric coupling of the photoelectrical coupler photoelectrical coupler receiving tube DG interior to described drive circuit in described controlling circuit of voltage regulation; One end of the driving resistance R 1 in described switching circuit is connected to the positive potential of Rectified alternating current, the other end of driving resistance R 1 is connected to the negative potential of Rectified alternating current, and is connected with the negative pole of voltage stabilizing didoe DW1 in described drive circuit, the end that discharges resistance R 2, the negative electrode of the self-turn-off device V that the positive pole of blocking diode D1 and the positive pole of voltage stabilizing didoe DW1, the other end of release resistance R 2, the emitter of photoelectrical coupler receiving tube DG, described switching circuit are interior is connected with the negative pole of first charging capacitor C1; The positive pole of first charging capacitor C1 in described switching circuit is connected with the negative pole of charging diode D3 with the positive pole of discharge diode D2, the negative pole of discharge diode D2 is connected with output E+, and the positive pole of charging diode D3 is connected with output E-with the negative pole of second charging capacitor C2; The negative pole of the positive pole of second charging capacitor C2 and resilience diode D4 is connected with output E+; The collector electrode of the photoelectrical coupler receiving tube DG that the driving stage of self-turn-off device V in described switching circuit is interior with described drive circuit is connected; The anode of self-turn-off device V in described switching circuit is connected with the positive pole of resilience diode D4 with the end of current-limiting inductance L2, and the other end of current-limiting inductance L2 is connected with output E-with the negative pole of second charging capacitor C2.The V+ of described controlling circuit of voltage regulation and output E+ join, and the V-of controlling circuit of voltage regulation and output E-join.In described controlling circuit of voltage regulation the output of the voltage comparator B luminous tube FG that controls photoelectrical coupler through photoelectric coupling to the receiving tube DG in the photoelectrical coupler in described drive circuit.
Beneficial effect of the present invention is, owing to adopting 50 weeks control capacitor charging/discharging voltages to carry out rectifying and voltage-stabilizing, reduced transform part, increased the AC rectification angle of flow, power factor and the conversion efficiency of circuit have been improved, reduced the switching loss of capacitor, postponed the useful life of capacitor, and then improved the useful life of circuit; Due to the inductance that does not use transformer or switch change-over to use, therefore dwindled the circuit volume, and then reduced cost of manufacture; Be provided with the resilience diode, reduced the withstand voltage of self-turn-off device, reclaimed the energy in current-limiting inductance simultaneously, improved conversion efficiency.
The accompanying drawing explanation
Fig. 1 capacitor-type rectification voltage-dropping type voltage stabilizing circuit schematic diagram
Number in the figure:
1 rectification circuit
2 drive circuits
3 switching circuits
4 controlling circuit of voltage regulation
The LED constant current constant voltage driving power schematic diagram that Fig. 2 utilizes capacitor-type rectification voltage-dropping type voltage stabilizing circuit to make
Number in the figure:
1 rectification circuit
2 drive circuits
3 switching circuits
4 controlling circuit of voltage regulation
5 constant-current control circuits
Embodiment
Below in conjunction with embodiment and accompanying drawing thereof, the present invention is described in further details.
The present invention is a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuit.Fig. 1 is capacitor-type rectification voltage-dropping type voltage stabilizing circuit schematic diagram.This circuit consists of input L and N, rectification circuit 1, drive circuit 2, switching circuit 3, controlling circuit of voltage regulation 4, output E-, E+ and load Rfz.Described rectification circuit 1 consists of common mode inductance L1, filter capacitor CL and rectifier bridge DQ; Described drive circuit 2 is by driving resistance R 1, release resistance R 2, voltage stabilizing didoe DW1, blocking diode D1, photoelectrical coupler receiving tube DG to form; Described switching circuit 3 consists of first charging capacitor C1 and second charging capacitor C2, discharge diode D2, charging diode D3, current-limiting inductance L2, resilience diode D4 and self-turn-off device V; Described controlling circuit of voltage regulation 4 consists of luminous tube FG and the voltage comparator B of photoelectrical coupler.
A kind of capacitor-type rectification voltage-dropping type each inside circuit of voltage stabilizing circuit and between annexation be, the input N of alternating current is connected with an end of the winding of the interior common mode inductance L1 of described rectification circuit 1, and the other end of this winding is connected to the end of filtering capacitor CL and the end that exchanges input of rectifier bridge DQ; The input L of alternating current is connected with an end of another winding of common mode inductance L1 of described rectification circuit 1, and the other end of this winding is connected to the other end of filtering capacitor CL and the other end that exchanges input of rectifier bridge DQ; The negative pole of one end of the driving resistance R 1 that the positive potential of rectifier bridge DQ output is interior with described drive circuit 2, the discharge diode D2 in described switching circuit 3 and the E+ of DC output end are connected; The negative pole of the blocking diode D1 that the negative potential of the rectifier bridge DQ output in described rectification circuit 1 is interior with described drive circuit 2 is connected; The positive pole of the blocking diode D1 that the negative pole of first charging capacitor C1 in described switching circuit 3 and the negative electrode of self-turn-off device V are interior with described drive circuit 2 is connected; The luminous tube FG photoelectric coupling of described controlling circuit of voltage regulation 4 interior photoelectrical couplers is to the interior photoelectrical coupler receiving tube DG of described drive circuit 2.One end of the driving resistance R 1 in described drive circuit 2 is connected to the positive potential of Rectified alternating current, the other end of driving resistance R 1 is connected to the negative potential of Rectified alternating current, and is connected with the negative pole of voltage stabilizing didoe DW1 in described drive circuit 2, the end that discharges resistance R 2, the negative electrode of the self-turn-off device V that the positive pole of blocking diode D1 and the positive pole of voltage stabilizing didoe DW1, the other end of release resistance R 2, the emitter of photoelectrical coupler receiving tube DG, described switching circuit 3 are interior is connected with the negative pole of first charging capacitor C1; The positive pole of first charging capacitor C1 in described switching circuit 3 is connected with the negative pole of charging diode D3 with the positive pole of discharge diode D2, the negative pole of discharge diode D2 is connected with output E+, and the positive pole of charging diode D3 is connected with output E-with the negative pole of second charging capacitor C2; The negative pole of the positive pole of second charging capacitor C2 and resilience diode D4 is connected with output E+; The collector electrode of the photoelectrical coupler receiving tube DG that the driving stage of self-turn-off device V in described switching circuit 3 is interior with described drive circuit 2 is connected; The anode of self-turn-off device V in described switching circuit 3 is connected with the positive pole of resilience diode D4 with the end of current-limiting inductance L2, and the other end of current-limiting inductance L2 is connected with output E-with the negative pole of second charging capacitor C2.
During work, input L and N access civil power alternating current, alternating current is after the common mode inductance L1 in rectification circuit 1 and filtering capacitor CL filtering, be rectified into Rectified alternating current through rectifier bridge DQ again, operating voltage as switching circuit 3, the driving voltage that the reverse voltage that blocking diode D1 two ends produce is self-turn-off device, drive the self-turn-off device conducting.When the voltage of the output E+ of operating load Rfz and E-reaches requirement voltage, voltage comparator B in controlling circuit of voltage regulation 4 drives the luminous tube FG work of photoelectrical coupler, make the receiving tube DG conducting in the photoelectrical coupler in drive circuit 2, and then control self-turn-off device V and turn-off, reach the purpose of controlling output voltage.When self-turn-off device turn-offs, the electromagnetic energy be stored in current-limiting inductance is discharged into to negative pole in second charging capacitor C2 through positive pole by resilience diode D4.
Fig. 2 is the LED constant current constant voltage driving power schematic diagram that utilizes capacitor-type rectification voltage-dropping type voltage stabilizing circuit to make.This power supply consists of input L and N, rectification circuit 1, drive circuit 2, switching circuit 3, controlling circuit of voltage regulation 4 and constant-current control circuit 5.Described rectification circuit 1 consists of common mode inductance L1, filter capacitor CL and rectifier bridge DQ; Described drive circuit 2 is by driving resistance R 1, release resistance R 2, voltage stabilizing didoe DW1, blocking diode D1, photoelectrical coupler receiving tube DG to form; Described switching circuit 3 consists of first charging capacitor C1 and second charging capacitor C2, discharge diode D2, charging diode D3, current-limiting inductance L2, resilience diode D4 and self-turn-off device V; Described controlling circuit of voltage regulation 4 consists of luminous tube FG, adjustable resistance W1, resistance R 3, R4, R5, R6 and R7, blocking diode D5 and D6, capacitor C3, voltage stabilizing didoe DW2 and DW3, the voltage comparator B 1 of photoelectrical coupler; Described constant-current control circuit 5 consists of voltage comparator B 2, adjustable resistance W2, resistance R 8, R9, R10 and RX, capacitor C4.
Annexation between foregoing circuit is: an end of a winding of the common mode inductance that input N is interior with rectification circuit 1 is connected, and an end of another winding of the common mode inductance that the L of input is interior with rectification circuit 1 is connected; The positive pole of rectification circuit 1 output is connected with the E+ of DC output end, and the negative pole of rectification circuit 1 output is connected with the negative pole of the blocking diode D1 of drive circuit interior 2; One end of the driving resistance R 1 in drive circuit 2 and direct current output E+ end join, the driving stage of the self-turn-off device V that the negative pole of voltage stabilizing didoe DW1 in drive circuit is interior with switching circuit 3 is connected, the negative pole of the interior charging capacitor C1 of switching circuit 3 is connected with the positive pole of the blocking diode D1 of drive circuit 2, and drive circuit 2 and controlling circuit of voltage regulation 4 are that the photoelectric receiving tube DG in overdrive circuit 2 is connected with the photoemission cell FG photoelectric coupling in controlling circuit of voltage regulation 4; One end of the resistance R 3 in controlling circuit of voltage regulation 4 and the end of adjustable resistance W1 are connected with DC output end E+; The output of the voltage comparator B 2 in constant-current control circuit 5 is connected with the D6 negative pole of the blocking diode of controlling circuit of voltage regulation 4; The negative pole of the charging capacitor C2 that the end of current sense resistor RX in constant-current control circuit 5 is interior with switching circuit 3 is connected, and the other end of current sense resistor RX is connected with output E-, and the two ends of load Rfz are connected respectively to E+ and the E-end of direct current output.
During work, input L and N access civil power alternating current, alternating current, after the common mode inductance L1 in rectification circuit 1 and filtering capacitor CL filtering, then is rectified into Rectified alternating current through rectifier bridge DQ, as the operating voltage of switching circuit 3.The driving voltage that the reverse voltage that blocking diode D1 two ends produce is self-turn-off device, drive the self-turn-off device conducting.When the voltage of the output E+ of driving LED work and E-reaches requirement voltage, output end voltage through resistance W1 and R5 and resistance R 6 dividing potential drops to the voltage comparator B 1 in controlling circuit of voltage regulation 4, control drives the luminous tube FG work of photoelectrical coupler through blocking diode D5, make the receiving tube DG conducting in photoelectrical coupler, and then turn-off self-turn-off device V, reach the purpose of controlling output voltage; When current sense resistor RX detects output current and reaches the requirement electric current, output end voltage through resistance R 9 and R10 dividing potential drop to the voltage comparator B 2 in constant-current control circuit 5, drive the luminous tube FG work of photoelectrical coupler through blocking diode D6, make the receiving tube DG conducting in photoelectrical coupler, and then turn-off self-turn-off device V, reach the purpose of controlling output current; In Fig. 2, Rfz is that many LED are composed in series.
The present invention adopts 50 weeks control capacitor charging/discharging voltages to carry out rectifying and voltage-stabilizing, has greatly reduced the capacitor charging/discharging loss, has reduced the capacitor serviceability temperature, has improved capacitor useful life, has broken through existing LED driving power short bottleneck in useful life.Owing to not using transformer or high frequency conversion inductance, dwindled the circuit volume.The LED constant current constant voltage driving power of producing with this invention, improved reliability, have simple in structure, volume is little, lightweight, power factor and the advantages such as efficiency is high, long service life.
Claims (4)
1. a capacitor-type rectification voltage-dropping type voltage stabilizing circuit, it is characterized in that: alternating current, after common mode inductance and filter capacitor filtering, is rectified into Rectified alternating current by rectifier bridge, through blocking diode and charging diode, two capacitors is carried out to the tandem charging; When input ac voltage, lower than output dc voltage and while reaching the predetermined control value, blocking diode produces driving voltage and drives the self-turn-off device conducting, through discharge diode and current-limiting inductance, realizes that first capacitor is to second parallel electric discharge; When output voltage reaches required value, voltage comparator in controlling circuit of voltage regulation is controlled the light-emitting diode work in photoelectrical coupler, receiving tube conducting in photoelectrical coupler in photoelectric coupling makes drive circuit, the control self-turn-off device turn-offs, the control of realization to second capacitor terminal voltage, and then reach the purpose of controlling voltage stabilizing output; When self-turn-off device turn-offs, the electromagnetic energy be stored in current-limiting inductance is discharged in second capacitor through the resilience diode.
2. a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuit according to claim 1 is characterized in that: a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuit consists of input L and N, rectification circuit (1), drive circuit (2), switching circuit (3), controlling circuit of voltage regulation (4), output E-, E+ and load Rfz; Described rectification circuit (1) consists of common mode inductance L1, filtering capacitor CL and rectifier bridge DQ; Described drive circuit (2) consists of the receiving tube DG that drives resistance R 1, discharge in resistance R 2, voltage stabilizing didoe DW1, blocking diode D1, photoelectrical coupler; Described switching circuit (3) consists of first charging capacitor C1 and second charging capacitor C2, discharge diode D2 and charging diode D3, current-limiting inductance L2, resilience diode D4 and self-turn-off device V; Described controlling circuit of voltage regulation (4) consists of luminous tube FG and the voltage comparator B of photoelectrical coupler.
3. according to claim 1 and 2 described a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuits, it is characterized in that: described self-turn-off device can adopt pliotron, power field effect pipe, IGBT and GTO etc. to have can control the semiconductor power device that turn-offs attribute.
4. according to claim 1,2 and 3 described a kind of capacitor-type rectification voltage-dropping type voltage stabilizing circuits, it is characterized in that: the input N of alternating current is connected with an end of the winding of the interior common mode inductance L1 of described rectification circuit (1), and the other end of this winding is connected to the end of filtering capacitor CL and the end that exchanges input of rectifier bridge DQ; The input L of alternating current is connected with an end of another winding of common mode inductance L1 of described rectification circuit (1), and the other end of this winding is connected to the other end of filtering capacitor CL and the other end that exchanges input of rectifier bridge DQ; The negative pole of the discharge diode D2 that the positive potential of rectifier bridge DQ output is interior with an end, the described switching circuit (3) of the driving resistance R 1 in described drive circuit (2) and the E+ of DC output end are connected; The negative potential of the rectifier bridge DQ output in described rectification circuit (1) is connected with the negative pole of the blocking diode D1 in described drive circuit (2); The positive pole of the blocking diode D1 that the negative pole of first charging capacitor C1 in described switching circuit (3) and the negative electrode of self-turn-off device V are interior with described drive circuit (2) is connected; The photoelectrical coupler receiving tube DG that the luminous tube FG photoelectric coupling of the interior photoelectrical coupler of described controlling circuit of voltage regulation (4) is interior to described drive circuit (2); One end of the driving resistance R 1 in described drive circuit (2) is connected to the positive potential of Rectified alternating current, the other end of driving resistance R 1 is connected to the negative potential of Rectified alternating current, and is connected with the negative pole of voltage stabilizing didoe DW1 in described drive circuit (2), the end that discharges resistance R 2, the negative electrode of the self-turn-off device V that the positive pole of blocking diode D1 and the positive pole of voltage stabilizing didoe DW1, the other end of release resistance R 2, the emitter of photoelectrical coupler receiving tube DG, described switching circuit (3) are interior is connected with the negative pole of first charging capacitor C1; The positive pole of first charging capacitor C1 in described switching circuit (3) is connected with the negative pole of charging diode D3 with the positive pole of discharge diode D2, the negative pole of discharge diode D2 is connected with output E+, and the positive pole of charging diode D3 is connected with output E-with the negative pole of second charging capacitor C2; The negative pole of the positive pole of second charging capacitor C2 and resilience diode D4 is connected with output E+; The anode of self-turn-off device V in described switching circuit (3) is connected with the positive pole of resilience diode D4 with the end of current-limiting inductance L2, and the other end of current-limiting inductance L2 is connected with output E-with the negative pole of second charging capacitor C2; V+ and the output E+ of described controlling circuit of voltage regulation (4) join, the V-of controlling circuit of voltage regulation (4) is connected with output E-, the receiving tube DG in the photoelectrical coupler of luminous tube FG in photoelectric coupling arrives described drive circuit (2) of the output control photoelectrical coupler of the voltage comparator B in described controlling circuit of voltage regulation (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310495516.3A CN103501120A (en) | 2013-10-18 | 2013-10-18 | Capacitor type rectifying and step-down voltage regulator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310495516.3A CN103501120A (en) | 2013-10-18 | 2013-10-18 | Capacitor type rectifying and step-down voltage regulator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103501120A true CN103501120A (en) | 2014-01-08 |
Family
ID=49866301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310495516.3A Pending CN103501120A (en) | 2013-10-18 | 2013-10-18 | Capacitor type rectifying and step-down voltage regulator circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103501120A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986352A (en) * | 2014-05-30 | 2014-08-13 | 李香龙 | Capacitive type shared ground AC/DC switch voltage stabilizing circuit |
| CN104039043A (en) * | 2014-05-30 | 2014-09-10 | 李香龙 | Non-polar capacitor voltage reducing and dividing rectification linear light-emitting diode (LED) driving circuit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06335233A (en) * | 1993-05-17 | 1994-12-02 | Mitsubishi Electric Corp | Thyristor switch device |
| CN102244955A (en) * | 2010-05-14 | 2011-11-16 | 皇家飞利浦电子股份有限公司 | Adaptive circuit |
| US20130148384A1 (en) * | 2011-12-07 | 2013-06-13 | Samsung Electro-Mechanics Co., Ltd. | Integrated resonance and power factor correction control integrated circuit and power converter |
| CN203206128U (en) * | 2012-12-18 | 2013-09-18 | 河北工业大学 | Three-phase alternating current-to-single-phase alternating current conversion device |
-
2013
- 2013-10-18 CN CN201310495516.3A patent/CN103501120A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06335233A (en) * | 1993-05-17 | 1994-12-02 | Mitsubishi Electric Corp | Thyristor switch device |
| CN102244955A (en) * | 2010-05-14 | 2011-11-16 | 皇家飞利浦电子股份有限公司 | Adaptive circuit |
| US20130148384A1 (en) * | 2011-12-07 | 2013-06-13 | Samsung Electro-Mechanics Co., Ltd. | Integrated resonance and power factor correction control integrated circuit and power converter |
| CN203206128U (en) * | 2012-12-18 | 2013-09-18 | 河北工业大学 | Three-phase alternating current-to-single-phase alternating current conversion device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103986352A (en) * | 2014-05-30 | 2014-08-13 | 李香龙 | Capacitive type shared ground AC/DC switch voltage stabilizing circuit |
| CN104039043A (en) * | 2014-05-30 | 2014-09-10 | 李香龙 | Non-polar capacitor voltage reducing and dividing rectification linear light-emitting diode (LED) driving circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107086770B (en) | PFC circuit and variable frequency air conditioner | |
| CN107650729B (en) | The pre-charging device of the High-Voltage Electrical Appliances of new-energy automobile | |
| CN103518166A (en) | Method and apparatus for controlling resonant converter output power | |
| WO2016112784A1 (en) | Uninterrupted power supply and control method thereof | |
| WO2015096613A1 (en) | Online interactive uninterruptible power supply and control method therefor | |
| CN104506039A (en) | Bidirectional isolation direct-current and direct-current converter | |
| CN101202461A (en) | Main circuit structure for changing storage battery into charge and discharge | |
| CN110829878A (en) | Novel bidirectional AC/DC converter | |
| CN103269164B (en) | The quasi-single-stage high power factor circuit of former limit current constant control and device | |
| CN202818111U (en) | Boosting LLC resonant converter | |
| CN103887981A (en) | Full-bridge DC-DC converter | |
| CN105406751A (en) | Three-winding coupling inductance type Z-source inverter circuit with high step-up ratio ability | |
| CN104753445A (en) | Solar power supply device | |
| CN103746440A (en) | Energy-saving and environment-friendly type storage battery formation charge and discharge power supply | |
| CN108964450B (en) | Composite circuit for connecting DC power supply to AC power supply | |
| CN104811075B (en) | A kind of control method of combined converter | |
| CN101924481B (en) | PFC (Power Factor Correction) rectifier circuit | |
| CN104716680A (en) | Offline uninterruptible power supply with renewable energy and control method thereof | |
| CN105305578A (en) | Highly-efficient high-power wireless charging device of electric car | |
| CN201118256Y (en) | Accumulator formation charging-discharging main circuit structure capable of counter charging | |
| CN205846817U (en) | A kind of AC DC inverse-excitation type charging circuit and charger | |
| CN103501120A (en) | Capacitor type rectifying and step-down voltage regulator circuit | |
| CN104822211A (en) | High-reliability LED illuminating device | |
| CN203590058U (en) | Capacitor type rectifying and step-down voltage regulator circuit | |
| CN205092637U (en) | High -efficient high power electric automobile wireless charging device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140108 |
|
| WD01 | Invention patent application deemed withdrawn after publication |