CN204928308U - Reverse charging circuit of power frequency invertion power supply - Google Patents
Reverse charging circuit of power frequency invertion power supply Download PDFInfo
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- CN204928308U CN204928308U CN201520565767.9U CN201520565767U CN204928308U CN 204928308 U CN204928308 U CN 204928308U CN 201520565767 U CN201520565767 U CN 201520565767U CN 204928308 U CN204928308 U CN 204928308U
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- microprocessor
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a reverse charging circuit of power frequency invertion power supply, which comprises a microprocessor, microprocessor has connected gradually sinusoidal impulse drive circuit and power frequency vary voltage circuit, power frequency vary voltage circuit still is connected with battery and sampling circuit respectively, NULL is still connected to power frequency vary voltage circuit, sampling circuit with microprocessor connects, sampling circuit still through NULL power synchronous detection circuit with microprocessor connects, and this novel owner who utilizes the contrary power of power frequency opens up the postscript structure, and alternating current power supply voltage acquisition compares through the input, realizes reverse mode to storage battery charging. This scheme has under the condition that does not increase the hardware cost, realizes the storage battery charging in netting the contravariant system to need not increase equipment and interconnecting link.
Description
Technical field
The utility model relates to a kind of power frequency inverter reverse charging circuit.
Background technology
In order to solve the electrical problem of energy outlying district, poverty-stricken area, in recent years, the whole world is all at development photovoltaic generation.Along with the development of energy storage technology, photovoltaic off-grid systems grow becomes the first-selection of newly-built photovoltaic system.In photovoltaic off-grid system, storage battery, as energy storage device, determines the time of system cloud gray model.When continuous overcast and rainy time, need in time to carry out supplementing electricity to storage battery.A lot of Electricity customers, is provided with diesel generating set, or using the standby of photovoltaic as electric main.The charge in batteries scheme of current routine is, user needs separately to buy a set of switch power supply system, comes charge in batteries.
Configure new switch power supply system, need infusion of financial resources, and circuit connects trouble, takes up room; How to utilize the device of inversion itself, realizing storage battery reverse charging is the current problem needing to solve.
Utility model content
The technical problems to be solved in the utility model is: for overcoming the problems referred to above, provides a kind of power frequency inverter reverse charging circuit.
The utility model solves the technical scheme that its technical problem adopts:
A kind of power frequency inverter reverse charging circuit, comprise microprocessor, described microprocessor is connected with sine pulse drive circuit and power frequency transforming circuit in turn, described power frequency transforming circuit is also connected with storage battery and sample circuit respectively, described power frequency transforming circuit also connects interchange input, described sample circuit is connected with described microprocessor, and described sample circuit is also connected with described microprocessor by alternating current input power supplying sync detection circuit.
Preferably, described sine pulse drive circuit comprises A phase sine pulse drive circuit, B phase sine pulse drive circuit and C phase sine pulse drive circuit.
Preferably, described A phase sine pulse drive circuit comprises 4 groups of driving power voltage generation circuits, wherein driving power voltage generation circuit described in a group comprises isolation drive optocoupler OP1, the IN+ pin of described isolation drive optocoupler OP1 is connected with described microprocessor by resistance R1, the IN-pin of described isolation drive optocoupler OP1 is connected with its IN+ pin and ground connection by resistance R3, and described isolation drive optocoupler OP1 is also connected with resistance R5, diode D1, diode Z1, electric capacity C2, electric capacity C4, electric capacity C6 and electric capacity C8.
Preferably, described B phase sine pulse drive circuit is identical with arranging of described A phase sine pulse drive circuit with C phase sine pulse drive circuit.
Preferably, described alternating current input power supplying sync detection circuit comprises comparator U4A and comparator U5A, described comparator U4A is connected with R23, resistance R24 and electric capacity C32, and described comparator U5A is connected with resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, electric capacity C31 and electric capacity C33.
Preferably, described power frequency transforming circuit comprises the MOS power circuit, inductance L 1 and the Industrial Frequency Transformer TA that connect successively.
Preferably, described microprocessor is dsPIC33FJ64GS606 type single-chip microcomputer.
The beneficial effects of the utility model are: this is novel utilizes power frequency to open up postscript structure against the master of power supply, is compared, realize the mode oppositely to charge in batteries by input ac power voltage acquisition.The program has when not increasing hardware cost, and realizing, to from the charge in batteries in net inversion system, does not need increase equipment and connection line.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the structured flowchart of the utility model embodiment;
Fig. 2 is the circuit diagram of driving power voltage generation circuit described in the utility model;
Fig. 3 is the circuit diagram of power frequency transforming circuit described in the utility model;
Fig. 4 is the circuit diagram of alternating current input power supplying sync detection circuit described in the utility model;
Fig. 5 is the circuit diagram of sample circuit described in the utility model.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Described in the utility model a kind of power frequency inverter reverse charging circuit as shown in Figure 1, comprise microprocessor, described microprocessor is connected with sine pulse drive circuit and power frequency transforming circuit in turn, described power frequency transforming circuit is also connected with storage battery and sample circuit respectively, described power frequency transforming circuit also connects interchange input, described sample circuit is connected with described microprocessor, described sample circuit is also connected with described microprocessor by alternating current input power supplying sync detection circuit, this is novel utilizes power frequency to open up postscript structure against the master of power supply, compared by input ac power voltage acquisition, realize the mode oppositely to charge in batteries.The program has when not increasing hardware cost, and realizing, to from the charge in batteries in net inversion system, does not need increase equipment and connection line.
In preferred embodiments, described sine pulse drive circuit comprises A phase sine pulse drive circuit, B phase sine pulse drive circuit and C phase sine pulse drive circuit.
In preferred embodiments, described A phase sine pulse drive circuit comprises 4 groups of driving power voltage generation circuits, wherein driving power voltage generation circuit described in a group comprises isolation drive optocoupler OP1, as shown in Figure 2, the IN+ pin of described isolation drive optocoupler OP1 is connected with described microprocessor by resistance R1, the IN-pin of described isolation drive optocoupler OP1 is connected with its IN+ pin and ground connection by resistance R3, described isolation drive optocoupler OP1 is also connected with resistance R5, diode D1, diode Z1, electric capacity C2, electric capacity C4, electric capacity C6 and electric capacity C8, pass through D1, C8 rectifying and wave-filtering becomes 18V DC power supply, for OP1 isolation drive light lotus root provides working power, the A phase driving pulse APWM1H that microprocessor produces is added to OP1 isolation drive light lotus root by R1, after power conversion, Q1 is driven respectively by R8, produce BOOST booster circuit.
In preferred embodiments, described B phase sine pulse drive circuit is identical with arranging of described A phase sine pulse drive circuit with C phase sine pulse drive circuit.
In preferred embodiments, as shown in Figure 4, described alternating current input power supplying sync detection circuit comprises comparator U4A and comparator U5A, described comparator U4A is connected with R23, resistance R24 and electric capacity C32, described comparator U5A is connected with resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, electric capacity C31 and electric capacity C33, R23 R24 U4 constitute 1.65 reference voltage generating circuits, the sinusoidal waveform after AC power step-down is input in U5 comparator circuit by R29.When alternating current input power supplying is positive half cycle, the ACHI of R26 end is high level.When alternating current input power supplying is negative half period, the ACHI of R26 end is low level.ACHI signal is sent in microprocessor unit, then can judge the phase place of alternating current input power supplying.
In preferred embodiments, as shown in Figure 3, described power frequency transforming circuit comprises the MOS power circuit, inductance L 1 and the Industrial Frequency Transformer TA that connect successively, and Industrial Frequency Transformer TA and inductance L 1 constitute inductive energy storage unit required in BOOST booster circuit.
In preferred embodiments, in sample circuit, as shown in Figure 5, alternating current input power supplying voltage is by after sampling transformer TR1 step-down sampling, piled by BD1 bridge and be made into direct current, after the voltage sampling signal of R20, R21, U6 composition changes, then filter into based on 1.65V by R22, C28 to be the sinusoidal voltage waveform of benchmark, to feed back to microprocessor.Battery charging current by after Hall isolation sampling, by R17 R18 dividing potential drop, after C25 filtering, then the voltage follower circuit be made up of U3A, finally by R19 C27 again filter after be sent to microprocessor.
In preferred embodiments, described microprocessor is dsPIC33FJ64GS606 type single-chip microcomputer, and it is preferred, but can also be the single-chip microcomputer of other content with funtion.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this utility model technological thought, can carry out various change and amendment completely.The technical scope of this utility model is not limited to the content on specification, must determine its technical scope according to right.
Claims (7)
1. a power frequency inverter reverse charging circuit, comprise microprocessor, it is characterized in that, described microprocessor is connected with sine pulse drive circuit and power frequency transforming circuit in turn, described power frequency transforming circuit is also connected with storage battery and sample circuit respectively, described power frequency transforming circuit also connects interchange input, and described sample circuit is connected with described microprocessor, and described sample circuit is also connected with described microprocessor by alternating current input power supplying sync detection circuit.
2. power frequency inverter reverse charging circuit as claimed in claim 1, it is characterized in that, described sine pulse drive circuit comprises A phase sine pulse drive circuit, B phase sine pulse drive circuit and C phase sine pulse drive circuit.
3. power frequency inverter reverse charging circuit as claimed in claim 2, it is characterized in that, described A phase sine pulse drive circuit comprises 4 groups of driving power voltage generation circuits, wherein driving power voltage generation circuit described in a group comprises isolation drive optocoupler OP1, the IN+ pin of described isolation drive optocoupler OP1 is connected with described microprocessor by resistance R1, the IN-pin of described isolation drive optocoupler OP1 is connected with its IN+ pin and ground connection by resistance R3, described isolation drive optocoupler OP1 is also connected with resistance R5, diode D1, diode Z1, electric capacity C2, electric capacity C4, electric capacity C6 and electric capacity C8.
4. power frequency inverter reverse charging circuit as claimed in claim 3, it is characterized in that, described B phase sine pulse drive circuit is identical with arranging of described A phase sine pulse drive circuit with C phase sine pulse drive circuit.
5. power frequency inverter reverse charging circuit as claimed in claim 1, it is characterized in that, described alternating current input power supplying sync detection circuit comprises comparator U4A and comparator U5A, described comparator U4A is connected with R23, resistance R24 and electric capacity C32, and described comparator U5A is connected with resistance R25, resistance R26, resistance R27, resistance R28, resistance R29, electric capacity C31 and electric capacity C33.
6. power frequency inverter reverse charging circuit as claimed in claim 1, it is characterized in that, described power frequency transforming circuit comprises the MOS power circuit, inductance L 1 and the Industrial Frequency Transformer TA that connect successively.
7. power frequency inverter reverse charging circuit as claimed in claim 1, it is characterized in that, described microprocessor is dsPIC33FJ64GS606 type single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565767.9U CN204928308U (en) | 2015-07-30 | 2015-07-30 | Reverse charging circuit of power frequency invertion power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520565767.9U CN204928308U (en) | 2015-07-30 | 2015-07-30 | Reverse charging circuit of power frequency invertion power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204928308U true CN204928308U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520565767.9U Expired - Fee Related CN204928308U (en) | 2015-07-30 | 2015-07-30 | Reverse charging circuit of power frequency invertion power supply |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451694A (en) * | 2015-07-30 | 2017-02-22 | 苏州大禾能源技术有限公司 | Reversal charging circuit for power frequency inverter power supply |
-
2015
- 2015-07-30 CN CN201520565767.9U patent/CN204928308U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106451694A (en) * | 2015-07-30 | 2017-02-22 | 苏州大禾能源技术有限公司 | Reversal charging circuit for power frequency inverter power supply |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 Termination date: 20210730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |