CN202872655U - Power adjustable power source - Google Patents
Power adjustable power source Download PDFInfo
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- CN202872655U CN202872655U CN 201220369321 CN201220369321U CN202872655U CN 202872655 U CN202872655 U CN 202872655U CN 201220369321 CN201220369321 CN 201220369321 CN 201220369321 U CN201220369321 U CN 201220369321U CN 202872655 U CN202872655 U CN 202872655U
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- 150000004706 metal oxides Chemical class 0.000 claims description 43
- 238000001514 detection method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 230000003750 conditioning effect Effects 0.000 claims description 4
- 239000003990 capacitor Substances 0.000 description 23
- 239000010453 quartz Substances 0.000 description 18
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 18
- 230000001276 controlling effect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
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- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model discloses a power adjustable power source which comprises a rectification circuit, a high-frequency adjusting circuit, an AC-to-DC circuit, an inversion circuit and a control circuit. Under the control of the control circuit, through utilization of the series resonance principle, a pulse DC voltage output by the rectification circuit is converted by the high-frequency adjusting circuit into a needed AC voltage, and then an AC voltage with frequency needed by a load is obtained after the AC voltage is processed by the AC-to-DC circuit and the inversion circuit, thus adjusting output power of the power source. Compared with a conventional power adjustable power source, the power adjustable power source of the utility model is simple in structure and allows the output power of the power source to be flexibly adjusted through the control circuit. Moreover, through adjustment about the amount of parallel high-frequency adjusting circuits, the power of the power source can be expanded easily.
Description
Technical field
The utility model relates to power technique fields, relates in particular to a kind of power regulated power supply.
Background technology
Ultraviolet ray is Ultraviolet, be called for short UV, quartz burner is the fluorescent tube that utilizes ultraviolet special role to make, be widely used in the industries such as bamboo-wood floor, furniture, ornament materials, printing, tin graphed sheet tank processed, plastic coating, label, circuit board, CD, quartz burner also is the perfect light source of the bonding curing such as semiconductor, electronic component, liquid crystal.The quartz burner of different-waveband has different purposes, the low pressure quartz burner is that bactericidal lamp, amalgam etc. then are mainly used in sterilizing, fume purifying, sewage disposal etc., the intensive ultraviolet fluorescent tube is made by high-quality pure quartz ampoule material, makes ultraviolet performance higher.In daily life, common family's electric furnace needs regulating power, electric fan to need governing speed, incandescent lamp to need brightness adjusting.Quartz burner is no exception, need to regulate the radiation intensity of regulating quartz burner according to the difference of applied environment, and generally be that the power output of the power supply by being adjusted to the quartz burner power supply realizes to the adjusting of Radiant Intensity of Ultraviolet Lamp, this power supply that just requires as the quartz burner power supply must be the adjustable power supply of power output.But the volume of traditional power regulated power supply is larger, and circuit structure is complicated, and the sensitivity of power adjustments is low, and power is difficult for expansion.
The utility model content
For above-mentioned technical problem, the purpose of this utility model is to provide a kind of power regulated power supply, the power output that it can the flexible power supply, and also circuit structure is simple, and power is easy to expansion.
For reaching this purpose, the utility model by the following technical solutions:
A kind of power regulated power supply comprises: rectification circuit, high frequency regulating circuit, interchange turn DC circuit, inverter circuit and control circuit;
Described rectification circuit is used for the supply voltage of input is converted to pulsating dc voltage, and exports to described high frequency regulating circuit;
Described high frequency regulating circuit is used for utilizing the series resonance principle, according to the control signal of described control circuit input, the described pulsating dc voltage of input is converted to alternating voltage, and exports to exchange and turn DC circuit; Wherein, the power that need to export of described alternating voltage and described power regulated power supply is corresponding;
Described interchange turns DC circuit and is converted to direct voltage for the described alternating voltage that will input, and exports to inverter circuit;
Described inverter circuit is used for the conditioning signal according to described control circuit input, exports to described load after the described direct voltage of input being converted to the alternating voltage of the required frequency of load.
Especially, described rectification circuit is the rectification circuit of soft start, is used for the control signal according to the control circuit input, and the supply voltage of inputting is converted to pulsating dc voltage.
Especially, described high frequency regulating circuit comprises: the first metal-oxide half field effect transistor (MOSFET), the second metal-oxide half field effect transistor, the first electric capacity, the second electric capacity, the 3rd electric capacity and inductance;
Wherein, the grid of the first metal-oxide half field effect transistor be connected the grid of metal-oxide half field effect transistor and all be connected with control circuit, the drain electrode of the first metal-oxide half field effect transistor is connected with an end of the first electric capacity and an end of the 3rd electric capacity, the other end of the 3rd electric capacity is connected with the source electrode of the second metal-oxide half field effect transistor and an end of the second electric capacity, the other end of the first electric capacity is connected with the other end that interchange turns DC circuit and the second electric capacity, the source electrode of the first metal-oxide half field effect transistor is connected with the drain electrode of the second metal-oxide half field effect transistor and an end of inductance, and the other end of inductance turns DC circuit with interchange and is connected.
Especially, to turn DC circuit be full-wave rectifying circuit in described interchange.
Especially, described full-wave rectifying circuit comprises: transformer, the first diode, the second diode, the 3rd diode and the 4th diode;
Wherein, the first diode, the second diode, the 3rd diode and the 4th diode consist of the rectifier bridge stack of full-bridge, the first tap of transformer is connected with an end of inductance, the second tap of transformer is connected with an end of an end of the first electric capacity and the second electric capacity, the 3rd tap of transformer is connected with the first input end of full-bridge, the 4th tap of transformer is connected with the second input of full-bridge, and the first output of full-bridge is connected the second output and all is connected with inverter circuit with full-bridge.
Especially, described inverter circuit is full bridge inverter.
Especially, described full bridge inverter comprises: the first insulated gate bipolar transistor (IGBT), the second insulated gate bipolar transistor, the 3rd insulated gate bipolar transistor and the 4th insulated gate bipolar transistor;
Wherein, the base stage of the first insulated gate bipolar transistor, the base stage of the second insulated gate bipolar transistor, the base stage of the base stage of the 3rd insulated gate bipolar transistor and the 4th insulated gate bipolar transistor all is connected with control circuit, the collector electrode of the first insulated gate bipolar transistor is connected with emitter and the load of the second insulated gate bipolar transistor, the collector electrode of the 3rd insulated gate bipolar transistor is connected with emitter and the load of the 4th insulated gate bipolar transistor, the emitter of the first insulated gate bipolar transistor is connected with the emitter of the 3rd insulated gate bipolar transistor and the first output of full-bridge, and the collector electrode of the second insulated gate bipolar transistor is connected with the collector electrode of the 4th insulated gate bipolar transistor and the second output of full-bridge.
Especially, to select model be the digital signal processor (DSP) of TMS320F2808 to described control circuit.
Especially, described power regulated power supply also comprises filter, voltage detecting circuit and current detection circuit;
Described filter is connected with rectification circuit, is used for the supply voltage of input is carried out filtering, and the supply voltage of filtering is exported to rectification circuit;
Described voltage detecting circuit and current detection circuit all are connected with control circuit and inverter circuit, for detection of the voltage and current of inverter circuit output, and testing result are exported to control circuit.
The utility model is under the control of control circuit, utilize the series resonance principle, by the high frequency regulating circuit rectification circuit is inputted pulsating dc voltage and be converted to required alternating voltage, after described alternating voltage turns DC circuit and inverter circuit processing through interchange, obtain the alternating voltage of the required frequency of load, finish the adjusting to output power of power supply.Compare with traditional power regulated power supply, circuit structure of the present utility model is simple, by control circuit can the flexible power supply power output, and just be easy to finish expansion to power by the quantity of regulating high frequency regulating circuit in parallel.
Description of drawings
The power regulated power supply block diagram that Fig. 1 provides for the utility model embodiment.
The power regulated power supply main circuit structure figure that Fig. 2 provides for the utility model embodiment.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, the utility model is described in further detail below in conjunction with drawings and Examples.
Please refer to shown in Figure 1ly, the power regulated power supply comprises in the present embodiment: filter 101, rectification circuit 102, high frequency regulating circuit 103, exchange and turn DC circuit 104, inverter circuit 105, voltage detecting circuit 106, current detection circuit 107 and control circuit 108.In addition, the load that is connected with the power regulated power supply in the present embodiment is quartz burner 109, and the supply voltage that external power supply is inputted this power regulated power supply is the three-phase alternating current of 380 volts (V).
Described filter 101 is used for the supply voltage of input is carried out the filtering processing, and the supply voltage after will processing is exported to rectification circuit 102.Can reduce or eliminate the interference of harmonic wave by filter 101.
Described rectification circuit 102 is used for the supply voltage after described filter 101 is processed is converted to pulsating dc voltage, and exports to described high frequency regulating circuit 103.
Because after rectification circuit 102 is converted to the pulsating dc voltage of 530V with the three-phase alternating voltage of the 380V of filter 101 input, need to be with the filter capacitor in the pulsating dc voltage input high frequency regulating circuit 103 of 530V, and at power regulated power supply booting moment, the initial voltage at these filter capacitor two ends is zero, if the pulsating dc voltage of 530V is directly inputted this filter capacitor, will form very large temporary impact electric current, this will cause inputting fuse and blow, therefore rectification circuit 102 is selected the rectification circuit of soft start in the present embodiment, according to the control signal of control circuit 108 inputs, make the voltage of rectification circuit 102 outputs rise to gradually 530V by zero.
Described high frequency regulating circuit 103 is used for utilizing the series resonance principle, according to the control signal of described control circuit 108 inputs, the described pulsating dc voltage of input is converted to alternating voltage, and exports to exchange and turn DC circuit 104; Wherein, the power that need to export of described alternating voltage and described power regulated power supply is corresponding.
High frequency regulating circuit 103 is after receiving the pulsating dc voltage of 530V, at first by filter capacitor described pulsating dc voltage is treated to direct voltage, then according to the control signal of control circuit 108 inputs, the pulsating dc voltage after processing is converted to alternating voltage.
Need to prove, described series resonance principle refers to: in the series circuit that resistance, inductance and electric capacity form, when capacitive reactance equates with induction reactance, voltage in the circuit is identical with the phase place of electric current, circuit presents pure resistive, and the total impedance of circuit is minimum, and the electric current in the circuit reaches maximum, it is maximum that the power output of circuit reaches, and this phenomenon is series resonance.
Described interchange turns DC circuit 104 and is converted to direct voltage for the described alternating voltage that will input, and will export to inverter circuit 105.
Because the frequency of the alternating voltage of high frequency regulating circuit 103 outputs is higher, and the frequency of quartz burner 109 operating voltages is 60 hertz (Hz).Frequency for the alternating voltage of regulating high frequency regulating circuit 103 output need to turn DC circuit 104(AC/DC by interchange) described alternating voltage is converted to direct voltage.The type that interchange turns DC circuit 104 is a lot, exchanges in the present embodiment to turn DC circuit 104 and select full-wave rectifying circuit.
Described inverter circuit 105 is used for the conditioning signal according to described control circuit 108 inputs, exports to described quartz burner 109 after the described direct voltage of input being converted to the alternating voltage of quartz burner 109 required frequencies.
Described voltage detecting circuit 106 is connected with current detection circuit and all is connected with control circuit 108 and inverter circuit 105, for detection of the voltage and current of inverter circuit 105 outputs, and with testing result input control circuit 108.
By voltage detecting circuit 106 and current detection circuit 107, control circuit 108 can the Real-time Obtaining inverter circuit voltage and current information of 105 outputs, and described voltage and current information analyzed, according to actual needs, transmit control signal to high frequency regulating circuit 103 and inverter circuit 105, the operation of control high frequency regulating circuit 103 and inverter circuit 105, thereby the power output of regulating power regulated power supply.
As shown in Figure 2, described high frequency regulating circuit 103 comprises: the first metal-oxide half field effect transistor Q1, the second metal-oxide half field effect transistor Q2, the first capacitor C 1, the second capacitor C 2, the 3rd capacitor C 3 and inductance L, described the 3rd capacitor C 3 is described filter capacitor.Described full-wave rectifying circuit comprises: transformer T, the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4, described the first diode D1, the second diode D2, the 3rd diode D3 and the 4th diode D4 consist of the rectifier bridge stack of full-bridge.Described full bridge inverter 105 comprises: the first insulated gate bipolar transistor Q3, the second insulated gate bipolar transistor Q4, the 3rd insulated gate bipolar transistor Q5 and the 4th insulated gate bipolar transistor Q6.The rectification circuit of described soft start comprises: the 5th diode D5, the 6th diode D6, the 7th diode D7, the first thyristor Q7, the second thyristor Q8 and the 3rd thyristor Q9.
Wherein, the end of the end of the 5th diode D5 and the 6th diode D6, the 7th diode D7 one end, one end of the first capacitor C 1, one end of the drain electrode of the first metal-oxide half field effect transistor Q1 and the 3rd capacitor C 3 connects, the other end of the 5th diode D5 is connected with negative electrode and the supply voltage input of the first thyristor Q7, the other end of the 6th diode D6 is connected with negative electrode and the supply voltage input of the second thyristor Q8, the other end of the 7th diode D7 is connected with negative electrode and the supply voltage input of the 3rd thyristor Q9, the anode of the anode of the first thyristor Q7 and the second thyristor Q8, the anode of the 3rd thyristor Q9, one end of the second capacitor C 2, the other end of the source electrode of the second metal-oxide half field effect transistor Q2 and the 3rd capacitor C 3 connects, the gate pole of the first thyristor Q7, the gate pole of the gate pole of the second thyristor Q8 and the 3rd thyristor Q9 all is connected with control circuit 108, the grid of the first metal-oxide half field effect transistor Q1 be connected the grid of metal-oxide half field effect transistor Q2 and all be connected with control circuit 108, the source electrode of the first metal-oxide half field effect transistor Q1 is connected with the drain electrode of the second metal-oxide half field effect transistor Q2 and an end of inductance L, the other end of the first capacitor C 1 is connected with the second tap of transformer T and the other end of the second capacitor C 2, and the other end of inductance L is connected with the first tap of transformer T; The 3rd tap of transformer T is connected with the first input end of full-bridge, and the 4th tap of transformer T is connected with the second input of full-bridge; The base stage of the first insulated gate bipolar transistor Q3, the base stage of the second insulated gate bipolar transistor Q4, the base stage of the base stage of the 3rd insulated gate bipolar transistor Q5 and the 4th insulated gate bipolar transistor Q6 all is connected with control circuit 108, the collector electrode of the first insulated gate bipolar transistor Q3 is connected with the emitter of the second insulated gate bipolar transistor Q4 and an end of quartz burner 109, the collector electrode of the 3rd insulated gate bipolar transistor Q5 is connected with the emitter of the 4th insulated gate bipolar transistor Q6 and the other end of quartz burner 109, the emitter of the first insulated gate bipolar transistor Q3 is connected with the emitter of the 3rd insulated gate bipolar transistor Q5 and the first output of full-bridge, and the collector electrode of the second insulated gate bipolar transistor Q4 is connected with the collector electrode of the 4th insulated gate bipolar transistor Q6 and the second output of full-bridge.
Operation principle of the present utility model is as follows: after the three-phase alternating current of the 380V of 101 pairs of inputs of filter carries out the filtering processing, the rectification circuit of soft start is converted to the three-phase alternating voltage of 380V according to the control signal of control circuit 108 inputs the pulsating dc voltage of 530V, the 3rd capacitor C 3 is carried out the filtering processing with the pulsating dc voltage of input, obtain direct voltage, and give the first metal-oxide half field effect transistor Q1 and the second metal-oxide half field effect transistor Q2 with this direct voltage output.
Digital signal processor (DSP) produces G1, G2, G3, G4, G5 and six groups of pulse-width modulations of G6 (PWM) control signal, the grid of the corresponding input of G1, G2, G3, G4, G5 and G6 the first metal-oxide half field effect transistor Q1, the grid of the second metal-oxide half field effect transistor Q2, the grid of the first insulated gate bipolar transistor Q3, the grid of the second insulated gate bipolar transistor Q4, the grid of the 3rd insulated gate bipolar transistor Q5, the grid of the 4th insulated gate bipolar transistor Q6.Wherein, the phase place of G1 and G2 is complementary, phase phasic difference 180 degree; G3 and G6 same-phase, G4 and G5 same-phase, G3 and G4 phase phasic difference 180 degree, G5 and G6 phase phasic difference 180 degree.Conducting and the shutoff of G1 and G2 corresponding control the first metal-oxide half field effect transistor Q1 and the second metal-oxide half field effect transistor Q2.The shutoff of the corresponding control of G3, G4, G5 and G6 the first insulated gate bipolar transistor Q3, the second insulated gate bipolar transistor Q4, the 3rd insulated gate bipolar transistor Q5 and the 4th insulated gate bipolar transistor Q6, thus the direct voltage of input is converted to the ac pulse voltage of 60Hz to drive quartz burner 109 normal operations.In addition, for the output voltage that makes rectification circuit 102 rises to 530V gradually by zero, digital signal processor is finished the soft start of rectification circuit 102 with gate pole, the gate pole of the second thyristor Q8 and the gate pole of the 3rd thyristor Q9 of three tunnel control signal G7, G8 and the corresponding input of G9 the first thyristor Q7 by controlling the first thyristor Q7, the second thyristor Q8 and the 3rd thyristor Q9.
When the first metal-oxide half field effect transistor Q1 conducting, the second metal-oxide half field effect transistor Q2 is in cut-off state, and this moment, inductance L and the second capacitor C 2 consisted of a resonant tank; Otherwise when the first metal-oxide half field effect transistor Q1 is in cut-off state, during the second metal-oxide half field effect transistor Q2 conducting, inductance L and the first capacitor C 1 consist of a resonant tank.
Utilize the series resonance principle, digital signal processor is controlled the switch of the first metal-oxide half field effect transistor Q1 and the second metal-oxide half field effect transistor Q2 by pulse-width modulation control signal G1 and G2, equal the natural frequency of resonant tank when the switching frequency of the first metal-oxide half field effect transistor Q1 or the second metal-oxide half field effect transistor Q2
The time, the capacitive reactance of resonant tank the first capacitor C 1 or the second capacitor C 2 equates with the induction reactance of inductance L, circuit generation resonance, this moment, resonant circuit presented pure resistive, the total impedance of resonant circuit is minimum, equal the equivalent resistance of quartz burner 109, the electric current of whole resonant circuit reaches maximum, and this moment, the power output of power regulated power supply was maximum; Otherwise, when the switching frequency of DSP CONTROL the first metal-oxide half field effect transistor Q1 or the second metal-oxide half field effect transistor Q2 during greater than described natural frequency, the power output of power regulated power supply will reduce, so, just can regulate the size of this power regulated power supply power output by the switching frequency of controlling the first metal-oxide half field effect transistor Q1 or the second metal-oxide half field effect transistor Q2.Wherein, L is the inductance value of inductance L, and C is the capacitance of the first capacitor C 1, and the capacitance of the second capacitor C 2 equates with the capacitance of the first capacitor C 1.
The utility model is by by two metal-oxide half field effect transistors, an inductance and the high frequency regulating circuit 103 that electric capacity consists of, utilize the series resonance principle, just finished the flexible to the power output of power supply, not only circuit structure is simple, and power is easy to expansion.
Above-mentioned only is preferred embodiment of the present utility model and institute's application technology principle; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed in the protection range of the present utility model.
Claims (9)
1. a power regulated power supply is characterized in that, comprising: rectification circuit, high frequency regulating circuit, interchange turn DC circuit, inverter circuit and control circuit;
Described rectification circuit is used for the supply voltage of input is converted to pulsating dc voltage, and exports to described high frequency regulating circuit;
Described high frequency regulating circuit is used for utilizing the series resonance principle, according to the control signal of described control circuit input, the described pulsating dc voltage of input is converted to alternating voltage, and exports to exchange and turn DC circuit; Wherein, the power that need to export of described alternating voltage and described power regulated power supply is corresponding;
Described interchange turns DC circuit and is converted to direct voltage for the described alternating voltage that will input, and exports to inverter circuit;
Described inverter circuit is used for the conditioning signal according to described control circuit input, exports to described load after the described direct voltage of input being converted to the alternating voltage of the required frequency of load.
2. power regulated power supply according to claim 1 is characterized in that, described rectification circuit is the rectification circuit of soft start, is used for the control signal according to the control circuit input, and the supply voltage of inputting is converted to pulsating dc voltage.
3. power regulated power supply according to claim 2 is characterized in that, described high frequency regulating circuit comprises: the first metal-oxide half field effect transistor, the second metal-oxide half field effect transistor, the first electric capacity, the second electric capacity, the 3rd electric capacity and inductance;
Wherein, the grid of the first metal-oxide half field effect transistor be connected the grid of metal-oxide half field effect transistor and all be connected with control circuit, the drain electrode of the first metal-oxide half field effect transistor is connected with an end of the first electric capacity and an end of the 3rd electric capacity, the other end of the 3rd electric capacity is connected with the source electrode of the second metal-oxide half field effect transistor and an end of the second electric capacity, the other end of the first electric capacity is connected with the other end that interchange turns DC circuit and the second electric capacity, the source electrode of the first metal-oxide half field effect transistor is connected with the drain electrode of the second metal-oxide half field effect transistor and an end of inductance, and the other end of inductance turns DC circuit with interchange and is connected.
4. power regulated power supply according to claim 3 is characterized in that, it is full-wave rectifying circuit that described interchange turns DC circuit.
5. power regulated power supply according to claim 4 is characterized in that, described full-wave rectifying circuit comprises: transformer, the first diode, the second diode, the 3rd diode and the 4th diode;
Wherein, the first diode, the second diode, the 3rd diode and the 4th diode consist of the rectifier bridge stack of full-bridge, the first tap of transformer is connected with an end of inductance, the second tap of transformer is connected with an end of an end of the first electric capacity and the second electric capacity, the 3rd tap of transformer is connected with the first input end of full-bridge, the 4th tap of transformer is connected with the second input of full-bridge, and the first output of full-bridge is connected the second output and all is connected with inverter circuit with full-bridge.
6. power regulated power supply according to claim 5 is characterized in that, described inverter circuit is full bridge inverter.
7. power regulated power supply according to claim 6, it is characterized in that, described full bridge inverter comprises: the first insulated gate bipolar transistor, the second insulated gate bipolar transistor, the 3rd insulated gate bipolar transistor and the 4th insulated gate bipolar transistor;
Wherein, the base stage of the first insulated gate bipolar transistor, the base stage of the second insulated gate bipolar transistor, the base stage of the base stage of the 3rd insulated gate bipolar transistor and the 4th insulated gate bipolar transistor all is connected with control circuit, the collector electrode of the first insulated gate bipolar transistor is connected with emitter and the load of the second insulated gate bipolar transistor, the collector electrode of the 3rd insulated gate bipolar transistor is connected with emitter and the load of the 4th insulated gate bipolar transistor, the emitter of the first insulated gate bipolar transistor is connected with the emitter of the 3rd insulated gate bipolar transistor and the first output of full-bridge, and the collector electrode of the second insulated gate bipolar transistor is connected with the collector electrode of the 4th insulated gate bipolar transistor and the second output of full-bridge.
8. power regulated power supply according to claim 7 is characterized in that, it is the digital signal processor of TMS320F2808 that described control circuit is selected model.
9. power regulated power supply according to claim 8 is characterized in that, also comprises filter, voltage detecting circuit and current detection circuit;
Described filter is connected with rectification circuit, is used for the supply voltage of input is carried out filtering, and the supply voltage of filtering is exported to rectification circuit;
Described voltage detecting circuit and current detection circuit all are connected with control circuit and inverter circuit, for detection of the voltage and current of inverter circuit output, and testing result are exported to control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369321 CN202872655U (en) | 2012-07-27 | 2012-07-27 | Power adjustable power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220369321 CN202872655U (en) | 2012-07-27 | 2012-07-27 | Power adjustable power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872655U true CN202872655U (en) | 2013-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220369321 Expired - Lifetime CN202872655U (en) | 2012-07-27 | 2012-07-27 | Power adjustable power source |
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| Country | Link |
|---|---|
| CN (1) | CN202872655U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769390A (en) * | 2012-07-27 | 2012-11-07 | 无锡蓝天电子有限公司 | Power regul power supply |
| CN104935841A (en) * | 2015-06-04 | 2015-09-23 | 青岛海信电器股份有限公司 | Power supply circuit applied to television set and television set |
| CN108011528A (en) * | 2018-01-11 | 2018-05-08 | 国安奇纬光电新材料有限公司 | A kind of light modulation film power source special |
| DE102021124082A1 (en) | 2021-09-17 | 2023-03-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for charging an energy store of a motor vehicle |
-
2012
- 2012-07-27 CN CN 201220369321 patent/CN202872655U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769390A (en) * | 2012-07-27 | 2012-11-07 | 无锡蓝天电子有限公司 | Power regul power supply |
| CN104935841A (en) * | 2015-06-04 | 2015-09-23 | 青岛海信电器股份有限公司 | Power supply circuit applied to television set and television set |
| CN104935841B (en) * | 2015-06-04 | 2018-10-12 | 青岛海信电器股份有限公司 | A kind of power circuit and television set applied to television set |
| CN108011528A (en) * | 2018-01-11 | 2018-05-08 | 国安奇纬光电新材料有限公司 | A kind of light modulation film power source special |
| DE102021124082A1 (en) | 2021-09-17 | 2023-03-23 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Method for charging an energy store of a motor vehicle |
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Address after: 214187 Huishan City, Jiangsu Province, town, Los Angeles District, State Road, next to the Zhang Zhen section of the 312 Patentee after: WUXI BRIGHTSKY ELECTRONIC Co.,Ltd. Address before: 214187 Huishan City, Jiangsu Province, town, Los Angeles District, State Road, next to the Zhang Zhen section of the 312 Patentee before: WUXI BRIGHTSKY ELECTRONIC Co.,Ltd. |
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Granted publication date: 20130410 |