CN203504264U - Charger capable of switching doubling-voltage automatically - Google Patents
Charger capable of switching doubling-voltage automatically Download PDFInfo
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- CN203504264U CN203504264U CN201320576176.2U CN201320576176U CN203504264U CN 203504264 U CN203504264 U CN 203504264U CN 201320576176 U CN201320576176 U CN 201320576176U CN 203504264 U CN203504264 U CN 203504264U
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- 238000005070 sampling Methods 0.000 claims abstract description 26
- 238000007600 charging Methods 0.000 claims abstract description 16
- 239000003990 capacitor Substances 0.000 claims description 56
- 239000004065 semiconductor Substances 0.000 claims description 8
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000007723 die pressing method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model provides a charger capable of switching a doubling-voltage automatically. The charger includes a current and voltage signal acquiring circuit, a light coupling feedback circuit, an over-current protection circuit, a MOS pipe charging control circuit, an auxiliary power supply circuit, a voltage sampling circuit, a direct current power supply circuit, a comparison control circuit and a voltage doubling circuit, wherein the comparison control circuit includes a first comparator and a second comparator; the voltage sampling circuit includes a bridge type rectification diode DB1; the voltage doubling circuit includes a bridge type rectification diode DB2 and a relay; an output terminal of the voltage sampling circuit is connected with and input terminal of the direct current power supply circuit and a comparison input terminal of the first comparator, an output terminal of the first comparator is connected with a comparison input terminal of the second comparator, an input terminal of the second comparator controls and connects with a driving power supply circuit of the relay, and an output terminal of the voltage doubling circuit is connected with the MOS pipe charging control circuit. The charger has advantages of being scientific in design, being convenient to use, being good in safety performance, and being suitable for many kinds of commercial power voltages.
Description
Technical field
The utility model relates to a kind of charger, specifically, has related to a kind of automatic switchover multiplication of voltage charger.
Background technology
Existing charger comprises current and voltage signals Acquisition Circuit, optocoupler feedback circuit, current foldback circuit, metal-oxide-semiconductor charging control circuit and auxiliary power circuit.The electric weight that this charger can gather storage battery charges to storage battery automatically, but the power supply that this charger connects must be the power supply of 220V, otherwise can not reach optimum charging effect, is unsuitable for low-voltage and uses; Simultaneously, aggravation along with globalization, existing charger is difficult to meet overseas market, at present the standard line voltage in the whole world has two kinds of 110V and 220V, the most also line voltage of 220V of existing charger is that benchmark is made, can under 220V line voltage, charge efficiently, but under 110V civil power, cannot bring into play maximum charge efficiency.While how to meet low pressure, also can bring into play the maximal efficiency of charger, be people's problem demanding prompt solutions.
In order to solve the problem of above existence, people are seeking a kind of desirable technical solution always.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art, provides a kind of design science, property easy to use, safe is good and the automatic switchover multiplication of voltage charger of applicable multiple line voltage.
To achieve these goals, the technical scheme that the utility model adopts is: a kind of automatic switchover multiplication of voltage charger, comprise current and voltage signals Acquisition Circuit, optocoupler feedback circuit, current foldback circuit, metal-oxide-semiconductor charging control circuit, auxiliary power circuit, voltage sampling circuit, DC power supply circuit, comparison control circuit and voltage-multiplying circuit, described comparison control circuit comprises the first comparator and the second comparator, described voltage sampling circuit comprises bridge rectifier diode DB1, described voltage-multiplying circuit comprises bridge rectifier diode DB2 and relay, the input of the input of described bridge rectifier diode DB1 and described bridge rectifier diode DB2 is respectively as power input, the output of described voltage sampling circuit connects respectively the input of described DC power supply circuit and the comparison input of described the first comparator, the output of described the first comparator connects the comparison input of the second comparator, the driving power circuit of relay described in the input control connection of described the second comparator, according to the voltage signal collecting, judge whether to disconnect or closed described relay, the output of described voltage-multiplying circuit connects described metal-oxide-semiconductor charging control circuit, described DC power supply circuit is described the first comparator, described the second comparator and described relay pass through working power.
Based on above-mentioned, described voltage sampling circuit bridge rectifier diode DB1, the output one termination signal ground of described bridge rectifier diode DB1, the output other end of described bridge rectifier diode DB1 is contact resistance R1 successively, resistance R 2, resistance R 7 and resistance R 13, the two ends shunt capacitance C7 of described resistance R 13, one end of described resistance R 13 is as the output of voltage sampling circuit, another termination signal ground of described resistance R 13, another termination signal ground of described capacitor C 2, the two ends of described capacitor C 2 are connected in parallel on the two ends of described resistance R 1 and described resistance R 13, the two ends shunt capacitance C6 of described capacitor C 2, the two ends shunt capacitance C5 of described capacitor C 6.
Based on above-mentioned, described DC power supply circuit comprises integrated switch chip LNK564D and voltage transformer T1, one end of described voltage transformer T1 primary side is as the input of DC power supply circuit, one end of described voltage transformer T1 primary side connects one end of capacitor C 2, the other end of described voltage transformer T1 primary side connects the drain electrode of the inside MOSFET of integrated switch chip LNK564D, between the source electrode of the inside MOSFET of described integrated switch chip LNK564D and bypass pin, be connected capacitor C 13, the source electrode of the inside MOSFET of described integrated switch chip LNK564D connects signal ground, one end of described voltage transformer T1 secondary side connects the anode of diode D4, the negative electrode of described diode D4 connects respectively one end of capacitor C 9, one end of one end of resistance R 16 and resistance R 17, the other end of described capacitor C 9 connects respectively the source electrode of the other end of described voltage transformer T1 secondary side and the inside MOSFET of described integrated switch chip LNK564D, the emitter of the other end connecting triode Q1 of described resistance R 16, the collector electrode of described triode Q1 connects the feedback pin of described integrated switch chip LNK564D by resistance R 18, between the collector electrode of described triode Q1 and base stage, be connected capacitor C 12, the other end of described resistance R 17 connects respectively the base stage of described triode Q1 and the negative electrode of voltage stabilizing didoe D5, the source electrode of the inside MOSFET of integrated switch chip LNK564D described in the anodic bonding of described voltage stabilizing didoe D5, one end of described resistance R 7 is as the output of DC power supply circuit.
Based on above-mentioned, described comparison control circuit comprises the first comparator U1B and the second comparator U2B, the positive input of described the first comparator U1B connects the output of described voltage sampling circuit by resistance R 9, one end of the negative input difference contact resistance R3 of described the first comparator U1B and one end of resistance R 6, another termination signal ground of described resistance R 6, another termination reference voltage of described resistance R 3, contact resistance R12 between described the first comparator U1B positive input and output, the output of described the first comparator U1B is connected the negative input of described the second comparator U2B by the anode of diode D1 successively with resistance R 5, the positive input of described the second comparator U2B connects reference voltage by resistance R 8, contact resistance R10 between the positive input of described the second comparator U2B and output, the output of described the second comparator U2B is by the base stage of electric capacity R11 connecting triode Q1, the emitter of described triode Q1 connects signal ground, the driving power circuit of relay described in the collector electrode control connection of described triode Q1.
Based on above-mentioned, described voltage-multiplying circuit comprises bridge rectifier diode DB2 and relay K 1, output one end ground connection of described bridge rectifier diode DB2, the output other end ground connection of described bridge rectifier diode DB2 connects capacitor C 1 and capacitor C 3 successively, the other end ground connection of described capacitor C 3, control switch one end of described relay K 1 connects the output other end of described bridge rectifier diode DB2, the control switch other end of described relay K 1 is arranged between described capacitor C 1 and described capacitor C 3, the output other end of described bridge rectifier diode DB2 is as voltage-multiplying circuit input.
Based on above-mentioned, it also comprises reference voltage circuit, and described reference voltage circuit connects respectively described resistance R 3 and described resistance R 8.
The relative prior art of the utility model has substantive distinguishing features and progress, specifically, the utility model has increased voltage sampling circuit in existing charger, DC power supply circuit, comparison control circuit and voltage-multiplying circuit, the input of voltage sampling circuit and voltage-multiplying circuit is connected civil power, voltage sampling circuit will pass to respectively DC power supply circuit and comparison control circuit behind commercial power rectification, DC power supply circuit provides suitable working power, the voltage signal that comparison control circuit basis collects and reference voltage signal judge whether to open voltage-multiplying circuit and carry out multiplication of voltage, by voltage-multiplying circuit, connect metal-oxide-semiconductor charging control circuit to charge in batteries, make the applied widely of whole charger, meet low line voltage charging, meanwhile, charger can, under 110V or 220V line voltage, be charged efficiently, its tool design science, property easy to use, safe is good and the advantage of applicable multiple line voltage.
Accompanying drawing explanation
Fig. 1 is structural representation block diagram of the present utility model.
Fig. 2 is the particular circuit configurations schematic diagram of described voltage sampling circuit, described DC power supply circuit, described comparison control circuit and described voltage-multiplying circuit.
Embodiment
Below by embodiment, the technical solution of the utility model is described in further detail.
A kind of embodiment of the multiplication of voltage charger that automatically switches as shown in Figure 1, comprise current and voltage signals Acquisition Circuit, optocoupler feedback circuit, current foldback circuit, metal-oxide-semiconductor charging control circuit, auxiliary power circuit, voltage sampling circuit, DC power supply circuit, comparison control circuit and voltage-multiplying circuit, described comparison control circuit comprises the first comparator and the second comparator, described voltage sampling circuit comprises bridge rectifier diode DB1, described voltage-multiplying circuit comprises bridge rectifier diode DB2 and relay, the input of the input of described bridge rectifier diode DB1 and described bridge rectifier diode DB2 is respectively as power input, connect civil power, the output of described voltage sampling circuit connects respectively the input of described DC power supply circuit and the comparison input of described the first comparator, the output of described the first comparator connects the comparison input of the second comparator, the driving power circuit of relay described in the input control connection of described the second comparator, according to the voltage signal collecting, judge whether to disconnect or closed described relay the fail safe while utilizing two comparators to guarantee whole charger charging, the output of described voltage-multiplying circuit connects described metal-oxide-semiconductor charging control circuit, and described DC power supply circuit is that described the first comparator, described the second comparator and described relay pass through working power.When voltage signal being detected when low, closing relay, opens voltage-multiplying circuit and carries out multiplication of voltage, and charger also can efficiently be charged the in the situation that of low-voltage
As shown in Figure 2, described voltage sampling circuit bridge rectifier diode DB1, the output one termination signal ground of described bridge rectifier diode DB1, the input of described bridge rectifier diode DB1 is respectively as power input N and power input L, connect civil power, the output other end of described bridge rectifier diode DB1 is contact resistance R1 successively, resistance R 2, resistance R 7 and resistance R 13, the two ends shunt capacitance C7 of described resistance R 13, one end of described resistance R 13 is as the output of voltage sampling circuit, another termination signal ground of described resistance R 13, another termination signal ground of described capacitor C 2, the two ends of described capacitor C 2 are connected in parallel on the two ends of described resistance R 1 and described resistance R 13, the two ends shunt capacitance C6 of described capacitor C 2, the two ends shunt capacitance C5 of described capacitor C 6.Civil power becomes direct current after bridge rectifier diode DB1, then after the filtering of capacitor C 2, capacitor C 5, capacitor C 6, voltage waveform is stable, resistance R 1, resistance R 2, resistance R 7 and resistance R 13, by after filtered voltage dividing potential drop, through capacitor C 7 filter out noise, obtain comparative voltage.
As shown in Figure 2, described DC power supply circuit comprises integrated switch chip LNK564D and voltage transformer T1, through the civil power through bridge rectifier diode DB1, enter described voltage transformer T1, one end of described voltage transformer T1 primary side is as the input of DC power supply circuit, one end of described voltage transformer T1 primary side connects one end of capacitor C 2, capacitor C 2 is as energy storage electric energy, the other end of described voltage transformer T1 primary side connects the drain electrode of the inside MOSFET of integrated switch chip LNK564D, between the source electrode of the inside MOSFET of described integrated switch chip LNK564D and bypass pin, be connected capacitor C 13, the source electrode of the inside MOSFET of described integrated switch chip LNK564D connects signal ground, one end of described voltage transformer T1 secondary side connects the anode of diode D4, the negative electrode of described diode D4 connects respectively one end of capacitor C 9, one end of one end of resistance R 16 and resistance R 17, the other end of described capacitor C 9 connects respectively the source electrode of the other end of described voltage transformer T1 secondary side and the inside MOSFET of described integrated switch chip LNK564D, the emitter of the other end connecting triode Q1 of described resistance R 16, the collector electrode of described triode Q1 connects the feedback pin of described integrated switch chip LNK564D by resistance R 18, between the collector electrode of described triode Q1 and base stage, be connected capacitor C 12, the other end of described resistance R 17 connects respectively the base stage of described triode Q1 and the negative electrode of voltage stabilizing didoe D5, the source electrode of the inside MOSFET of integrated switch chip LNK564D described in the anodic bonding of described voltage stabilizing didoe D5, one end of described resistance R 7 is as the output of DC power supply circuit, by voltage VCC.Utilize integrated switch chip LNK564D and peripheral circuit to carry out step-down and produce suitable circuit voltage, offer comparison control circuit and voltage-multiplying circuit.
As shown in Figure 2, described comparison control circuit comprises the first comparator U1B and the second comparator U2B, the positive input of described the first comparator U1B connects the output of described voltage sampling circuit by resistance R 9, after resistance R 9 and capacitor C 7 filtering, get rid of to disturb and avoid misoperation, obtain comparative voltage VD, one end of the negative input difference contact resistance R3 of described the first comparator U1B and one end of resistance R 6, another termination signal ground of described resistance R 6, another termination reference voltage of described resistance R 3, reference voltage obtains reference voltage V ref after resistance R 3 and resistance R 6 dividing potential drops, contact resistance R12 between described the first comparator U1B positive input and output, the output of described the first comparator U1B is connected the negative input of described the second comparator U2B by the anode of diode D1 successively with resistance R 5, diode D1 is set and prevents the second impact of comparator U2B on the first comparator U1B, the positive input of described the second comparator U2B connects reference voltage by resistance R 8, contact resistance R10 between the positive input of described the second comparator U2B and output, the output of described the second comparator U2B is by the base stage of electric capacity R11 connecting triode Q1, the emitter of described triode Q1 connects signal ground, the driving power circuit of relay described in the collector electrode control connection of described triode Q1, the power supply forward input economize on electricity of described the second comparator U2B connects the output of DC power supply circuit, the power supply forward input economize on electricity of described the second comparator U2B connects capacitor C 4, described capacitor C 4 connects signal ground, the power-of described the second comparator U2B connects signal ground to input joint.
Comparison procedure: when comparative voltage VD is greater than reference voltage V ref, the first comparator U1B output high level, this high level, through diode D1 and resistance R 5, enters the second comparator U2B and reference voltage+2.5V and compares, now, the second comparator U2B output low level, the base stage of triode Q1 is low level, and triode Q1 can conducting, and voltage-multiplying circuit does not start, what show now to connect is the line voltage of 220V, and charger can efficiently charge.
When comparative voltage VD is less than reference voltage V ref, the first comparator U1B output low level, this low level, through diode D1 and resistance R 5, enters the second comparator U2B and reference voltage+2.5V and compares, now, the second comparator U2B output high level, the base stage of triode Q1 is high level, triode Q1 conducting, voltage-multiplying circuit starts, what show now to connect is the line voltage of 110V, and after multiplication of voltage, charger can efficiently charge.
As shown in Figure 2, described voltage-multiplying circuit comprises bridge rectifier diode DB2 and relay K 1, the input of described bridge rectifier diode DB2 is respectively as power input N end and power input L end, connect civil power, output one end ground connection of described bridge rectifier diode DB2, the output other end ground connection of described bridge rectifier diode DB2 connects capacitor C 1 and capacitor C 3 successively, the other end ground connection of described capacitor C 3, control switch one end of described relay K 1 connects the output other end of described bridge rectifier diode DB2, the control switch other end of described relay K 1 is arranged between described capacitor C 1 and described capacitor C 3, the output other end of described bridge rectifier diode DB2 is as voltage-multiplying circuit input A.Utilize bridge rectifier diode DB2 and capacitor C 1 and capacitor C 3, carry out multiplication of voltage, once relay K 1 is closed, alternating current upper half DB2_1 conducting charges to capacitor C 1, DB2_4 conducting is to capacitor C 3 chargings for alternating current lower half, and the electric weight stack of capacitor C 1 and capacitor C 3 realizes multiplication of voltage charging.
For obtain+2.5V reference voltage, this charger also comprises reference voltage circuit, and described reference voltage circuit connects respectively described resistance R 3 and described resistance R 8.
The course of work of whole charger is as follows: when charger does not access civil power, relay K 1 is often opened, i.e. charging is operated in the situation that there is no multiplication of voltage.When accessing the civil power of unknown voltage, voltage sampling circuit is started working, and gathering voltage gives comparison control circuit on the one hand, provide on the other hand power supply to DC power supply circuit, comparison control circuit judges whether to open voltage-multiplying circuit according to the comparative voltage signal and the reference voltage signal that receive.Specifically be divided into two kinds of situations, one, access 110V line voltage, comparison control circuit judges by analysis, relay K 1 closure starts voltage-multiplying circuit, carries out multiplication of voltage, and charger is efficiently charged; Two, access 220V line voltage, comparison control circuit judges by analysis, and relay K 1 is failure to actuate, and does not start voltage-multiplying circuit, and charger efficiently charges.
Because two kinds of line voltages all exist 20% fluctuation, be that working range is that AC90V-AC130V and AC180V-AC260V. utilize the space of 130V-180V between this that startup multiplication of voltage value is selected in to AC145V, and acquiescence working method is set to non-times of die pressing type and just can guarantees like this in input high pressure, can high-voltage signal can be detected fast, avoid relay misoperation to do.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the field are to be understood that: still can modify or part technical characterictic is equal to replacement embodiment of the present utility model; And not departing from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (6)
1. an automatic switchover multiplication of voltage charger, comprise current and voltage signals Acquisition Circuit, optocoupler feedback circuit, current foldback circuit, metal-oxide-semiconductor charging control circuit and auxiliary power circuit, it is characterized in that: it also comprises voltage sampling circuit, DC power supply circuit, comparison control circuit and voltage-multiplying circuit, described comparison control circuit comprises the first comparator and the second comparator, described voltage sampling circuit comprises bridge rectifier diode DB1, described voltage-multiplying circuit comprises bridge rectifier diode DB2 and relay, the input of the input of described bridge rectifier diode DB1 and described bridge rectifier diode DB2 is respectively as power input, the output of described voltage sampling circuit connects respectively the input of described DC power supply circuit and the comparison input of described the first comparator, the output of described the first comparator connects the comparison input of the second comparator, the driving power circuit of relay described in the input control connection of described the second comparator, and judge whether to disconnect or closed described relay according to the voltage signal collecting, the output of described voltage-multiplying circuit connects described metal-oxide-semiconductor charging control circuit, described DC power supply circuit is described the first comparator, described the second comparator and described relay pass through working power.
2. automatic switchover multiplication of voltage charger according to claim 1, it is characterized in that: described voltage sampling circuit bridge rectifier diode DB1, the output one termination signal ground of described bridge rectifier diode DB1, the output other end of described bridge rectifier diode DB1 is contact resistance R1 successively, resistance R 2, resistance R 7 and resistance R 13, the two ends shunt capacitance C7 of described resistance R 13, one end of described resistance R 13 is as the output of voltage sampling circuit, another termination signal ground of described resistance R 13, another termination signal ground of described capacitor C 2, the two ends of described capacitor C 2 are connected in parallel on the two ends of described resistance R 1 and described resistance R 13, the two ends shunt capacitance C6 of described capacitor C 2, the two ends shunt capacitance C5 of described capacitor C 6.
3. automatic switchover multiplication of voltage charger according to claim 2, it is characterized in that: described DC power supply circuit comprises integrated switch chip LNK564D and voltage transformer T1, one end of described voltage transformer T1 primary side is as the input of DC power supply circuit, one end of described voltage transformer T1 primary side connects one end of capacitor C 2, the other end of described voltage transformer T1 primary side connects the drain electrode of the inside MOSFET of integrated switch chip LNK564D, between the source electrode of the inside MOSFET of described integrated switch chip LNK564D and bypass pin, be connected capacitor C 13, the source electrode of the inside MOSFET of described integrated switch chip LNK564D connects signal ground, one end of described voltage transformer T1 secondary side connects the anode of diode D4, the negative electrode of described diode D4 connects respectively one end of capacitor C 9, one end of one end of resistance R 16 and resistance R 17, the other end of described capacitor C 9 connects respectively the source electrode of the other end of described voltage transformer T1 secondary side and the inside MOSFET of described integrated switch chip LNK564D, the emitter of the other end connecting triode Q1 of described resistance R 16, the collector electrode of described triode Q1 connects the feedback pin of described integrated switch chip LNK564D by resistance R 18, between the collector electrode of described triode Q1 and base stage, be connected capacitor C 12, the other end of described resistance R 17 connects respectively the base stage of described triode Q1 and the negative electrode of voltage stabilizing didoe D5, the source electrode of the inside MOSFET of integrated switch chip LNK564D described in the anodic bonding of described voltage stabilizing didoe D5, one end of described resistance R 7 is as the output of DC power supply circuit.
4. automatic switchover multiplication of voltage charger according to claim 3, it is characterized in that: described comparison control circuit comprises the first comparator U1B and the second comparator U2B, the positive input of described the first comparator U1B connects the output of described voltage sampling circuit by resistance R 9, one end of the negative input difference contact resistance R3 of described the first comparator U1B and one end of resistance R 6, another termination signal ground of described resistance R 6, another termination reference voltage of described resistance R 3, contact resistance R12 between described the first comparator U1B positive input and output, the output of described the first comparator U1B is connected the negative input of described the second comparator U2B by the anode of diode D1 successively with resistance R 5, the positive input of described the second comparator U2B connects reference voltage by resistance R 8, contact resistance R10 between the positive input of described the second comparator U2B and output, the output of described the second comparator U2B is by the base stage of electric capacity R11 connecting triode Q1, the emitter of described triode Q1 connects signal ground, the driving power circuit of relay described in the collector electrode control connection of described triode Q1.
5. automatic switchover multiplication of voltage charger according to claim 4, it is characterized in that: described voltage-multiplying circuit comprises bridge rectifier diode DB2 and relay K 1, output one end ground connection of described bridge rectifier diode DB2, the output other end ground connection of described bridge rectifier diode DB2 connects capacitor C 1 and capacitor C 3 successively, the other end ground connection of described capacitor C 3, control switch one end of described relay K 1 connects the output other end of described bridge rectifier diode DB2, the control switch other end of described relay K 1 is arranged between described capacitor C 1 and described capacitor C 3, the output other end of described bridge rectifier diode DB2 is as voltage-multiplying circuit input.
6. automatic switchover multiplication of voltage charger according to claim 4, is characterized in that: it also comprises reference voltage circuit, and described reference voltage circuit connects respectively described resistance R 3 and described resistance R 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576176.2U CN203504264U (en) | 2013-09-18 | 2013-09-18 | Charger capable of switching doubling-voltage automatically |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320576176.2U CN203504264U (en) | 2013-09-18 | 2013-09-18 | Charger capable of switching doubling-voltage automatically |
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| CN203504264U true CN203504264U (en) | 2014-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320576176.2U Expired - Fee Related CN203504264U (en) | 2013-09-18 | 2013-09-18 | Charger capable of switching doubling-voltage automatically |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682680A (en) * | 2015-01-29 | 2015-06-03 | 广州金升阳科技有限公司 | Rectification and filtering method and circuit |
| CN105870983A (en) * | 2015-02-11 | 2016-08-17 | 联发科技股份有限公司 | Apparatus for performing hybrid power control in electronic device |
| CN106787048A (en) * | 2017-01-04 | 2017-05-31 | 上海广为美线电源电器有限公司 | Possesses the charger of automatic identification input voltage function |
| US10150378B2 (en) | 2015-02-11 | 2018-12-11 | Mediatek Inc. | Apparatus for performing hybrid power control in an electronic device with aid of separated power output nodes for multi-purpose usage of boost |
| US10230259B2 (en) | 2015-02-11 | 2019-03-12 | Mediatek Inc. | Apparatus for performing hybrid power control in an electronic device with aid of multiple switches corresponding multi-purpose usage |
| CN111277115A (en) * | 2020-03-10 | 2020-06-12 | 广州亦高电气设备有限公司 | Power supply circuit and power supply of welding equipment and welding equipment |
| CN113595411A (en) * | 2021-06-30 | 2021-11-02 | 新界泵业(浙江)有限公司 | Double-voltage change-over switch, equipment applying double-voltage change-over switch and control method |
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2013
- 2013-09-18 CN CN201320576176.2U patent/CN203504264U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104682680A (en) * | 2015-01-29 | 2015-06-03 | 广州金升阳科技有限公司 | Rectification and filtering method and circuit |
| CN105870983A (en) * | 2015-02-11 | 2016-08-17 | 联发科技股份有限公司 | Apparatus for performing hybrid power control in electronic device |
| CN105870983B (en) * | 2015-02-11 | 2018-10-12 | 联发科技股份有限公司 | The device of blended electric power control is executed in the electronic device |
| US10150378B2 (en) | 2015-02-11 | 2018-12-11 | Mediatek Inc. | Apparatus for performing hybrid power control in an electronic device with aid of separated power output nodes for multi-purpose usage of boost |
| US10230259B2 (en) | 2015-02-11 | 2019-03-12 | Mediatek Inc. | Apparatus for performing hybrid power control in an electronic device with aid of multiple switches corresponding multi-purpose usage |
| CN106787048A (en) * | 2017-01-04 | 2017-05-31 | 上海广为美线电源电器有限公司 | Possesses the charger of automatic identification input voltage function |
| CN106787048B (en) * | 2017-01-04 | 2023-10-27 | 上海广为美线电源电器有限公司 | Charger with function of automatically identifying input voltage |
| CN111277115A (en) * | 2020-03-10 | 2020-06-12 | 广州亦高电气设备有限公司 | Power supply circuit and power supply of welding equipment and welding equipment |
| CN113595411A (en) * | 2021-06-30 | 2021-11-02 | 新界泵业(浙江)有限公司 | Double-voltage change-over switch, equipment applying double-voltage change-over switch and control method |
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