CN202395530U - Charging circuit and charging device - Google Patents
Charging circuit and charging device Download PDFInfo
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- CN202395530U CN202395530U CN 201120574110 CN201120574110U CN202395530U CN 202395530 U CN202395530 U CN 202395530U CN 201120574110 CN201120574110 CN 201120574110 CN 201120574110 U CN201120574110 U CN 201120574110U CN 202395530 U CN202395530 U CN 202395530U
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Abstract
The utility model provides a charging circuit and a charging device, wherein the charging circuit comprises a power supply, a diode and a charging capacitor with one grounded end; and the power supply, the diode and the charging capacitor are sequentially connected in series. The charging circuit also comprises a resistance adjustable sub circuit which is serially connected between the power supply and the charging capacitor, wherein the resistance adjustable sub circuit can change the resistance value of the connected charging circuit. The utility model also provides a charging device comprising the charging circuit. According to the charging circuit and charging device provided by the embodiment of the utility model, by adopting a mode that the resistance value of a current limit resistor in the charging circuit is regulated through the circuit structure, under the condition that the maximum limit allowable charging current is basically kept, the charging capacitor is rapidly charged, maximum electric energy is stored by the charging capacitor within shorter time, and the charging speed is increased for later use.
Description
Technical field
The utility model relates to electronic circuit technology, relates in particular to a kind of charging circuit and charging device.
Background technology
Electric energy in portable set or the instrument widespread usage electric capacity is as the supply power mode of stand-by power supply at present.Fig. 1 is the circuit diagram of electric capacity charging modes in the prior art, and existing electric capacity charging modes is because charging modes control is simple, always the charging modes of power supply in support.But in the charging circuit as shown in Figure 1, resistance R is a current-limiting resistance, plays the restriction electric current.Because along with the electric weight that charges in the capacitor C constantly increases, the voltage Vc at capacitor C two ends also increases thereupon, so the voltage at current-limiting resistance R two ends just reduces thereupon, and charging current is also constantly reducing.
Fig. 2 is the charging curve sketch map of electric capacity charging modes in the prior art, and is as shown in Figure 2, in the charging process of one whole; Along with the increase of capacitor C voltage Vc, the charging current in the charging circuit reduces thereupon, in the later stage of charging; Because reducing of charging current, the growth of charging voltage also becomes slowly, therefore causes charging charging in early stage rapidly; The charging defective slowly of the later stage charging causes charging rate slow, has prolonged the charging interval.
The utility model content
For overcoming the defective of above-mentioned prior art, the utility model provides a kind of charging circuit and charging device, to improve charging rate, shortens the charging interval.
The charging circuit that the utility model provides comprises the charging capacitor of power supply, diode and an end ground connection of series connection successively, and said charging circuit also comprises:
The adjustable electronic circuit of one resistance is connected between said power supply and the said charging capacitor, and the adjustable electronic circuit of said resistance can change the resistance value that inserts said charging circuit.
In the aforesaid charging circuit; The adjustable electronic circuit of said resistance comprises first current-limiting resistance that is connected between said power supply and the said charging capacitor; And the one or more resistance value adjustment units parallelly connected with said first current-limiting resistance, each resistance value adjustment unit comprises second current-limiting resistance and the switch of mutual series connection.
In the aforesaid charging circuit, the adjustable electronic circuit of said resistance comprises first current-limiting resistance that is connected between said power supply and the said charging capacitor and second current-limiting resistance of at least one, each second current-limiting resistance also respectively with a switch in parallel.
In the aforesaid charging circuit, the adjustable electronic circuit of said resistance also comprises a timer, is used to the operation of carrying out closed each switch clocking information is provided.
In the aforesaid charging circuit, the adjustable electronic circuit of said resistance also comprises a voltage comparator circuit, is used for the voltage at said charging capacitor two ends is detected, and controls the closure of each switch respectively according to testing result; One input of said voltage comparator circuit is connected with the positive pole of said charging capacitor, and another input is connected with reference voltage source, and output is connected with each switch.
In the aforesaid charging circuit, the adjustable electronic circuit of said resistance comprises the digital regulation resistance of one or more series connection.
The charging device that the utility model provides comprises above-mentioned charging circuit.
Charging circuit that the utility model embodiment provides and charging device; Adjust the mode of current-limiting resistance resistance value in the charging circuit through relating to circuit structure; Under the situation that remains on greatest limit permission charging current basically, charging capacitor is carried out quick charge; The assurance charging capacitor is stored maximum electric energy in the short period of time, improves charging rate, in order to using.
Description of drawings
Fig. 1 is the circuit diagram of electric capacity charging modes in the prior art;
Fig. 2 is the charging curve sketch map of electric capacity charging modes in the prior art;
Fig. 3 is the circuit diagram of the utility model charging circuit one embodiment;
Fig. 4 is the circuit diagram of another embodiment of the utility model charging circuit;
Fig. 5 is the charging curve sketch map of charging circuit embodiment shown in Figure 4;
Fig. 6 the utility model charging circuit is the circuit diagram of an embodiment again;
Fig. 7 is the charging curve sketch map of charging circuit embodiment shown in Figure 6;
Fig. 8 is the circuit diagram of the another embodiment of the utility model charging circuit;
Fig. 9 is the charging curve sketch map of charging circuit embodiment shown in Figure 8.
Embodiment
Immobilize to the resistance value owing to current-limiting resistance in the charging circuit of prior art; Increase along with the charging capacitor voltage; Charging current causes charging charging in early stage rapidly thereupon reducing, the charging of charging later stage slowly causes charging rate to wait defective slowly; The utility model provides a kind of novel charging circuit and charging device, in the charging circuit of the utility model also is to use electric energy in the electric capacity as stand-by power supply.
In the charging circuit that each embodiment of the utility model provides, overcome charging charging in early stage rapidly, the charging later stage defective slowly of charging through the resistance value that change to insert the current-limiting resistance in the charging circuit.Particularly, among each embodiment of the utility model in the process that charging capacitor is charged, along with continuing of charging interval; The voltage at charging capacitor two ends will constantly increase; When the charging capacitor voltage is increased to a certain degree, through reducing to insert the resistance value of charging circuit, though the voltage at current-limiting resistance two ends is constantly reducing; But under the situation that resistance value also reduces; Charging current in the charging circuit will maintain the optimal charge electric current near, charging current will can not reduce along with the increase of charging capacitor voltage like this, with continuing to maintain near the of optimal charge electric current charging capacitor charged.
In view of this, the New-type charge circuit that provides of each embodiment of the utility model comprises the charging capacitor of power supply, diode and an end ground connection of series connection successively.Be different from the changeless mode of prior art resistance value; Also comprise the adjustable electronic circuit of a resistance in the charging circuit of the utility model; It is connected between said power supply and the said charging capacitor, and the adjustable electronic circuit of said resistance can change the resistance value that inserts said charging circuit.The adjustable electronic circuit of resistance among the utility model embodiment can change the resistance value that inserts charging circuit, specifically can cooperate with switch and realize adjusting the demand that inserts resistance value in the charging circuit based on multiple modes such as resistance series connection and/or parallel connections.
Fig. 3 is the circuit diagram of the utility model charging circuit one embodiment, and is as shown in Figure 3, and this charging circuit comprises diode D, charging capacitor C, digital regulation resistance R1 and power Vcc.Particularly, digital regulation resistance R1 connects with the anode of diode D, the negative electrode of diode D is connected with charging capacitor C, and the other end of digital regulation resistance R1 is connected with power Vcc, and power Vcc is that charging circuit provides power supply, and the other end of charging capacitor C is connected with ground GND.In the present embodiment; The adjustable electronic circuit of resistance is one to be connected on the digital regulation resistance in the charging circuit; Can be in charging process change the resistance value of himself, and then change and be linked into the resistance value in the charging circuit, charging current maintained the state of initial maximum charging current through sending out binary code for digital regulation resistance R1; Make the voltage of charging capacitor quickly charged to maximum, improved charging rate.
Certainly those skilled in the art can also be according to actual needs simultaneously at charging circuit a plurality of digital regulation resistances of connecting, with practical requirement, particular circuit configurations repeats no more here.And; It will be appreciated by those skilled in the art that ground; Fig. 3 only is a kind of in the multiple series system of the adjustable electronic circuit of diode, charging capacitor and resistance; Can certainly digital regulation resistance be connected between diode and the charging capacitor, perhaps other equivalent series systems are all within the protection range of the utility model.In addition, what adopt in the present embodiment is digital regulation resistance, and also can replacing of certainly can understand adopts slide rheostat or other to have the components and parts of identical function.
Maximum charging current under among the utility model embodiment be appreciated that into, for example keeping under the constant situation of supply power voltage, maximum supply current is 5 milliamperes, this moment can only be less than 5 milliamperes to the charging current of electric capacity; If charging current is greater than 5 milliamperes, because the main frame electricity shortage will cause the decline of supply power voltage, thereby cause the error in operation to chip.
Fig. 4 is the circuit diagram of another embodiment of the utility model charging circuit, and is as shown in Figure 4, and this charging circuit comprises diode D, charging capacitor C, the first current-limiting resistance R2, the second current-limiting resistance R3, K switch 1 and power Vcc.Particularly; The first current-limiting resistance R2 connects with the anode of diode D, the negative electrode of diode D is connected with charging capacitor C; The other end of the first current-limiting resistance R2 is connected with power Vcc, and power Vcc is that charging circuit provides power supply, and the other end of charging capacitor C is connected with ground GND.The second current-limiting resistance R3 connects each other with K switch 1 and forms a resistance value adjustment unit, and this resistance value adjustment unit is parallelly connected with the first current-limiting resistance R2.In the present embodiment, the adjustable electronic circuit of resistance comprises the first current-limiting resistance R2 parallel with one another and the second current-limiting resistance R3, and K switch 1.
Use simple parallel resistance control charging modes in the present embodiment, at first use a resistance as charging current limiter resistance, when charging capacitor voltage is charged to a certain degree; Open a parallel resistance; This parallel resistance and original current-limiting resistance are connected in parallel, and have promptly reduced the resistance of current-limiting resistance, charging current are increased to the state of initial maximum charging current; Make capacitance voltage quickly charged to maximum, improved charging rate.
Fig. 5 is the charging curve sketch map of charging circuit embodiment shown in Figure 4.As shown in Figure 5, use under the situation of two current-limiting resistances at application drawing 4, when the charging beginning, only the first current-limiting resistance R2 is inserted charging circuit, this moment, K switch 1 was in off-state.Utilize the extraneous maximum current that can provide that charging capacitor C is charged in the previous stage of charging.T1 in being charged to figure is during the moment, and close switch K1 inserts the second current-limiting resistance R3 in the charging circuit, promptly realizes the first current-limiting resistance R2 and second current-limiting resistance R3 parallel connection.Because resistance reduces after the resistance parallel connection, then under the identical voltage condition in resistance two ends, charging current increases, and current charges curve as shown in Figure 5 has been accelerated the charging to charging capacitor.Comparison diagram 2 can see that with Fig. 5 charging capacitor is charged to the used time of identical magnitude of voltage V0, and two-stage resistance charging rate is faster.Only comprise a resistance value adjustment unit in the charging circuit shown in Figure 4; Promptly only there is one second current-limiting resistance parallelly connected with first current-limiting resistance; Be appreciated that ground the utility model embodiment in can also comprise a plurality of resistance value adjustment units; Promptly comprise second a plurality of with the parallelly connected current-limiting resistance, and be used for controlling the switch that second current-limiting resistance inserts charging circuit with first current-limiting resistance.Fig. 6 the utility model charging circuit is the circuit diagram of an embodiment again, and Fig. 7 is the charging curve sketch map of charging circuit embodiment shown in Figure 6.As shown in Figure 6, on the basis of charging circuit shown in Figure 4, increase by one and the first current-limiting resistance parallel resistor value adjustment unit again, this resistance value adjustment unit comprises the second current-limiting resistance R3 and the K switch 2 of mutual series connection.
In like manner like Fig. 6 and shown in Figure 7, realize three grades of electric capacity chargings with three resistance, when the charging beginning, only the first current-limiting resistance R2 is inserted charging circuit, this moment, K switch 1 was in off-state with K2.Utilize the extraneous maximum current that can provide that charging capacitor C is charged in the previous stage of charging.T1 in being charged to figure is constantly the time, close switch K1, and this moment, K2 still was in off-state, and the second current-limiting resistance R3 of correspondence is inserted in the charging circuit, promptly realized the first current-limiting resistance R2 and second current-limiting resistance R3 parallel connection.Because resistance reduces after the resistance parallel connection, then under the identical voltage condition in resistance two ends, charging current increases.T2 in being charged to figure is during the moment, and close switch K2 in the second current-limiting resistance R3 access charging circuit with correspondence, promptly realizes the first current-limiting resistance R2 and two second current-limiting resistance R3 parallel connections.Because resistance can be littler after three resistance parallel connections, then under the identical voltage condition in resistance two ends, charging current increases once more.Comparison diagram 2, Fig. 5 and Fig. 7 can see, electric capacity is charged to the used time of identical magnitude of voltage V0, along with the increase charging rate of resistance parallel connection progression is accelerated.
It will be appreciated by persons skilled in the art that and can also continue a plurality of second current-limiting resistances of parallel connection, the mode that forms the multilevel resistance parallel connection is carried out quick charge, repeats no more here.Passing through in the foregoing description increases one-level or multipole parallel resistance in charging circuit, and the parallel connection of control parallel resistance constantly, and maintenance makes charging capacitor accomplish charging in the short period of time to the optimal charge electric current of charging capacitor charging.
And; It will be appreciated by those skilled in the art that ground; Only a kind of in the multiple series system of the adjustable electronic circuit of diode, charging capacitor and resistance among Fig. 4 and Fig. 6; Can certainly be between diode and charging capacitor with the adjustable electronic circuit of resistance, perhaps other equivalent series systems are all within the protection range of the utility model.
Fig. 8 is the circuit diagram of the another embodiment of the utility model charging circuit; Present embodiment adopts the resistance series system to electric capacity control charging; As shown in Figure 8, this charging circuit comprises diode D, charging capacitor C, the first current-limiting resistance R2, two the second current-limiting resistance R3, K switch 1, K switch 2 and power Vcc.Particularly; The first current-limiting resistance R2 and two second current-limiting resistance R3 connect successively; Connect with the anode of diode D again, the negative electrode of diode D connects with charging capacitor C; The other end of the first current-limiting resistance R2 is connected with power Vcc, and power Vcc is that charging circuit provides power supply, and the other end of charging capacitor C is connected with ground GND.And, each second current-limiting resistance R3 switch of parallel connection respectively also in the charging circuit, shown in figure respectively parallel connection K switch 1 and K switch 2.In the present embodiment, the adjustable electronic circuit of resistance comprises the first current-limiting resistance R2 and two second current-limiting resistance R3 of mutual series connection, and parallelly connected with the second current-limiting resistance R3 respectively K switch 1 and K2.
Like Fig. 8 and shown in Figure 9, when the charging beginning, K switch 1 is off-state with K2, and this moment, three resistance string connected into charging circuit, and utilizes the extraneous maximum current that can provide that charging capacitor C is charged in the previous stage of charging.T1 in being charged to figure is during the moment, and close switch K1 through the short circuit second current-limiting resistance R3 parallelly connected with K1, reduces the resistance value of parallel circuits, and then under the identical voltage condition in series resistance two ends, charging current increases; T2 in being charged to figure is during the moment, and close switch K2 is through the short circuit second current-limiting resistance R3 parallelly connected with K2; Further reduce the resistance value of parallel circuits; Then charging current increases once more, and current charges curve as shown in Figure 9 has been accelerated the charging to charging capacitor.Comparison diagram 2 can see that with Fig. 9 charging capacitor is charged to the used time of identical magnitude of voltage V0, and two-stage resistance charging rate is faster.
It will be appreciated by persons skilled in the art that and to continue a plurality of second current-limiting resistances of connecting in the present embodiment that the mode that forms the multilevel resistance series connection is carried out quick charge; Or one second current-limiting resistance of only connecting, the mode that forms the series connection of secondary resistance is carried out quick charge, repeats no more here.Also have, the technical staff in present technique field also should be clear, and each second current-limiting resistance R3 can adopt the identical resistance of resistance value according to the actual requirements among above-mentioned each embodiment, also can adopt resistance value resistance inequality.The first current-limiting resistance R2 also can adopt the resistance that is fit to resistance value according to demand.It will be appreciated by those skilled in the art that ground; Fig. 8 only is a kind of in the multiple series system of the adjustable electronic circuit of diode, charging capacitor and resistance; Can certainly be between diode and charging capacitor with the adjustable electronic circuit of resistance; Perhaps other equivalent series systems for example are connected on first current-limiting resistance between power supply and the diode, two second current-limiting resistances are connected on series system between diode and the charging capacitor etc., all within the protection range of the utility model.
Among above-mentioned each embodiment of the utility model, control can be adopted timer control mode or voltage control mode to the switch in the charging circuit.When adopting the timer control mode, the adjustable electronic circuit of described resistance also comprises a timer, is used to the operation of carrying out closed each switch clocking information is provided.With charging circuit shown in Figure 6 is example, when beginning charging timer pick up counting, when timing during to time t1, timer control close switch K1; When timing during to time t2, timer control close switch K2 promptly realizes the quick charge to electric capacity.Time t1 and t2 can set according to demand.
When the working voltage control mode, the adjustable electronic circuit of described resistance also comprises a voltage comparator or other voltage comparator circuit, is used for the voltage at charging capacitor two ends is detected, and controls the closure of each switch respectively according to testing result; One input of voltage comparator or other voltage comparator circuit is connected with the positive pole of charging capacitor, and another input is connected with reference voltage source, and output is connected with each switch.Be example still with charging circuit shown in Figure 6, when the voltage at charging capacitor two ends reaches magnitude of voltage V1, trigger voltage comparator or voltage comparator circuit close switch K1; When the voltage at charging capacitor two ends reached magnitude of voltage V2, trigger voltage comparator or voltage comparator circuit close switch K1 realized the quick charge to charging capacitor.
For example for the charging circuit of Fig. 4; Positive pole (position that charging capacitor is connected with diode) at charging capacitor takes away the voltage that closes K1, is the reference control magnitude of voltage if set power source voltage Vcc/2, then when electric capacity is charged; When the voltage Vc of charging capacitor is charged to more than or equal to Vcc/2; Control switch K1 is closed, with the parallel connection of two resistance, reduces the charging current limiter resistance value.
Again for example for the charging circuit of Fig. 6; Be respectively power source voltage Vcc/3 and power source voltage Vcc 2/3 if set the reference control magnitude of voltage, then work as to the charging capacitor charging, when the voltage Vc of charging capacitor is charged to more than or equal to Vcc/3; Control switch K1 is closed; With two resistance parallel connections, reduce the charging current limiter resistance value, will strengthen the maximum charging current value that the charging current value that has reduced is increased to permission along with Vc; When the voltage Vc of charging capacitor is continued to be charged to more than or equal to Vcc2/3; Control switch K2 is closed; Be about to three resistance parallel connections, further reduce the charging current limiter resistance value, will strengthen and the charging current value that reduced is increased to the maximum charging current value of permission along with Vc.
The reference control voltage of switch is set according to the needs of different occasions, and in general, Vc is low more, and charging voltage curve then shown in Figure 2 raises than very fast at leading portion, but the rear end rising is slower; Vc is high more, and charging voltage curve then shown in Figure 2 raises slow at leading portion, but the rear end raises comparatively fast.
The charging circuit that each embodiment of the utility model provides; On the basis of existing charging modes; Adjust the mode of current-limiting resistance resistance value in the charging circuit through relating to circuit structure, under the situation that remains on greatest limit permission charging current basically, charging capacitor is carried out quick charge, the assurance charging capacitor is stored maximum electric energy in the short period of time; Improve charging rate, in order to using.
The utility model embodiment also provides a kind of charging device, comprises the charging circuit that above-mentioned arbitrary embodiment provides.The structure of the charging circuit that is provided with in the charging device is same as the previously described embodiments, repeats no more here.The charging device that the utility model provides can be imaging device; For example printer, facsimile machine etc. comprise imaging device and imaging box etc.; Wherein on the imaging box with imaging box chip, storing the information such as data, imaging box build date data, imaging number of pages, imaging box sequence number and residue Mo Liang that are expressed as stored ink kind in the picture box in the imaging box chip; Electrical pickoff is set on the imaging device, connects with the imaging box chip of imaging on the box and communicate by letter, can read and write the data in the imaging box chip.
Comprise in the imaging box chip that non-volatile memory cells is such as EEPROM (Electrically Erasable Programmable Read-Only Memory; EEPROM); Volatile memory cell such as: random asccess memory (random access memory, RAM), and power storage module; Wherein: when the imaging device powers on to imaging box chip; Non-volatile memory cells in the imaging box chip dumps to the initial information that stores in the volatile memory cell, carries out the exchange of data by volatile memory cell and imaging device, and power storage module savings electric weight; When imaging device during to the imaging box chip power down, in non-volatile memory cells, it is the imaging box chip power supply that power storage module is arranged to the volatile memory cell in the imaging box chip with the data conversion storage that stores.Realize the fast reading and writing of imaging box chip like this, can guarantee the non-volatile of data again data.
The charging device that the utility model embodiment provides; Through the adjustable charging circuit of resistance value is set; Under the situation that remains on greatest limit permission charging current basically, the charging capacitor in the charging circuit is carried out quick charge; The assurance charging capacitor is stored maximum electric energy in the short period of time, has improved charging rate.
What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (7)
1. a charging circuit comprises the charging capacitor of power supply, diode and an end ground connection of series connection successively, it is characterized in that said charging circuit also comprises:
The adjustable electronic circuit of one resistance is connected between said power supply and the said charging capacitor, and the adjustable electronic circuit of said resistance can change the resistance value that inserts said charging circuit.
2. charging circuit according to claim 1; It is characterized in that; The adjustable electronic circuit of said resistance comprises first current-limiting resistance that is connected between said power supply and the said charging capacitor; And the one or more resistance value adjustment units parallelly connected with said first current-limiting resistance, each resistance value adjustment unit comprises second current-limiting resistance and the switch of mutual series connection.
3. charging circuit according to claim 1; It is characterized in that; The adjustable electronic circuit of said resistance comprises first current-limiting resistance that is connected between said power supply and the said charging capacitor and second current-limiting resistance of at least one, each second current-limiting resistance also respectively with a switch in parallel.
4. according to claim 2 or 3 described charging circuits, it is characterized in that the adjustable electronic circuit of said resistance also comprises a timer, be used to the operation of carrying out closed each switch clocking information is provided.
5. according to claim 2 or 3 described charging circuits, it is characterized in that the adjustable electronic circuit of said resistance also comprises a voltage comparator circuit, be used for the voltage at said charging capacitor two ends is detected, and control the closure of each switch respectively according to testing result; One input of said voltage comparator circuit is connected with the positive pole of said charging capacitor, and another input is connected with reference voltage source, and output is connected with each switch.
6. charging circuit according to claim 1 is characterized in that, the adjustable electronic circuit of said resistance comprises the digital regulation resistance of one or more series connection.
7. one kind comprises the charging device like the arbitrary described charging circuit of claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120574110 CN202395530U (en) | 2011-12-30 | 2011-12-30 | Charging circuit and charging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120574110 CN202395530U (en) | 2011-12-30 | 2011-12-30 | Charging circuit and charging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202395530U true CN202395530U (en) | 2012-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120574110 Expired - Lifetime CN202395530U (en) | 2011-12-30 | 2011-12-30 | Charging circuit and charging device |
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| CN (1) | CN202395530U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683448A (en) * | 2012-08-29 | 2014-03-26 | 意法半导体(图尔)公司 | Charging circuit of a capacitor |
| CN106549465A (en) * | 2017-01-13 | 2017-03-29 | 广东欧珀移动通信有限公司 | Charge control method, device, system and terminal |
| CN106688070A (en) * | 2014-09-03 | 2017-05-17 | 株式会社日立产机*** | Electromagnetic contactor and power conditioner |
| CN107276406A (en) * | 2017-07-14 | 2017-10-20 | 惠州拓邦电气技术有限公司 | A kind of overvoltage regulating circuit |
| CN108376977A (en) * | 2018-04-03 | 2018-08-07 | 国家电网有限公司 | Dynamic is let out can module, device and DC transmission system |
| CN109066833A (en) * | 2018-07-12 | 2018-12-21 | 国网山西省电力公司电力科学研究院 | The LiFePO4 standby battery group charging method for inhibiting overcurrent to generate |
| CN110908211A (en) * | 2019-12-17 | 2020-03-24 | 深圳市光羿科技有限公司 | Electrochromic device control circuit |
| CN112234693A (en) * | 2020-08-28 | 2021-01-15 | 珠海格力电器股份有限公司 | Bus charging control device, driver and bus charging control method thereof |
-
2011
- 2011-12-30 CN CN 201120574110 patent/CN202395530U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103683448A (en) * | 2012-08-29 | 2014-03-26 | 意法半导体(图尔)公司 | Charging circuit of a capacitor |
| CN103683448B (en) * | 2012-08-29 | 2018-01-19 | 意法半导体(图尔)公司 | Capacitator charging circuit |
| CN106688070A (en) * | 2014-09-03 | 2017-05-17 | 株式会社日立产机*** | Electromagnetic contactor and power conditioner |
| CN106549465A (en) * | 2017-01-13 | 2017-03-29 | 广东欧珀移动通信有限公司 | Charge control method, device, system and terminal |
| CN106549465B (en) * | 2017-01-13 | 2019-05-17 | Oppo广东移动通信有限公司 | Charge control method, device, system and terminal |
| CN107276406A (en) * | 2017-07-14 | 2017-10-20 | 惠州拓邦电气技术有限公司 | A kind of overvoltage regulating circuit |
| CN108376977A (en) * | 2018-04-03 | 2018-08-07 | 国家电网有限公司 | Dynamic is let out can module, device and DC transmission system |
| CN109066833A (en) * | 2018-07-12 | 2018-12-21 | 国网山西省电力公司电力科学研究院 | The LiFePO4 standby battery group charging method for inhibiting overcurrent to generate |
| CN110908211A (en) * | 2019-12-17 | 2020-03-24 | 深圳市光羿科技有限公司 | Electrochromic device control circuit |
| CN110908211B (en) * | 2019-12-17 | 2023-05-26 | 深圳市光羿科技有限公司 | Electrochromic device control circuit |
| CN112234693A (en) * | 2020-08-28 | 2021-01-15 | 珠海格力电器股份有限公司 | Bus charging control device, driver and bus charging control method thereof |
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Granted publication date: 20120822 |