CN203951221U - A kind of uninterrupted power supply charging circuit - Google Patents
A kind of uninterrupted power supply charging circuit Download PDFInfo
- Publication number
- CN203951221U CN203951221U CN201420262808.2U CN201420262808U CN203951221U CN 203951221 U CN203951221 U CN 203951221U CN 201420262808 U CN201420262808 U CN 201420262808U CN 203951221 U CN203951221 U CN 203951221U
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- circuit
- power supply
- resistance
- charging circuit
- current
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model discloses a kind of uninterrupted power supply charging circuit, include the voltage sampling circuit for detection of battery voltage size, described voltage sampling circuit is connected with controller, described controller is connected with for the charging circuit of constant charge size of current and for detection of the current sampling circuit of battery pack current size, described charging circuit is connected with power supply input circuit, controller carrys out the charging current of constant charge circuit according to the size of current of current sampling circuit detection battery pack, battery pack is carried out to constant current charge.The utility model both can have been realized wherein a kind of circuit constant current charge, also can realize commercial power charged circuit and solar charging circuit port constant current charge simultaneously, met the requirement of user's quick charge.
Description
[technical field]
The utility model relates to a kind of uninterrupted power supply charging circuit.
[background technology]
UPS (Uninterruptible Power System), uninterrupted power supply, is a kind of energy storage device that contains, the uninterrupted power supply of the constant voltage constant frequency that the inverter of take is chief component.Be mainly used in providing continual supply of electric power to single computer, computer network system or other power electronic equipment.When civil power is inputted when normal, UPS will be supplied to load to use after civil power voltage stabilizing, and UPS is now exactly an electric main pressurizer, and it also charges to self-contained battery simultaneously; When commercial power interruption (accident interruption), UPS is immediately by the electric energy of self-contained battery, and the square normal load of changing by inversion continues supply 220V alternating current, makes load maintain normal work and protects load soft and hardware not to be damaged.UPS equipment all provides protection to the excessive and voltage of voltage is too low conventionally.
[utility model content]
The utility model has overcome the deficiency of above-mentioned technology, a kind of uninterrupted power supply charging circuit is provided, adopted commercial power charged, two kinds of circuit of solar recharging to be connected in parallel, both can realize wherein a kind of circuit constant current charge, also can commercial power charged circuit and solar charging circuit port constant current charge simultaneously, meet the requirement of user's quick charge.
For achieving the above object, the utility model has adopted following technical proposal:
A kind of uninterrupted power supply charging circuit, include the voltage sampling circuit 2 for detection of battery pack 1 voltage swing, described voltage sampling circuit 2 is connected with controller 3, described controller 3 is connected with for the charging circuit 4 of constant charge size of current and for detection of the current sampling circuit 5 of battery pack 1 size of current, and described charging circuit 4 is connected with power supply input circuit 6.
Between described charging circuit 4 and battery pack 1, be connected with protective circuit 7.
Described power supply input circuit 6 is civil power step-down rectifier input circuit 61 or solar energy input circuit 62.
Described current sampling circuit 5 includes sign-changing amplifier LM358,1. the pin of described sign-changing amplifier LM358 is connected with controller 3 by resistance R 4,1. 2. the pin of described sign-changing amplifier LM358 1 be connected by resistance R 5 and its pin, 2. the pin of described sign-changing amplifier LM358 is connected with resistance R 7 one end, resistance R 7 other ends are connected with power supply input circuit 6, resistance R 17 other ends are by resistance R 15 ground connection, resistance R 7 other ends are by capacitor C 6 ground connection, and the pin of described sign-changing amplifier LM358 is 3. by resistance R 18 ground connection.
Described protective circuit 7 includes field effect transistor Q2, diode D4 and triode Q6, the source terminal of described field effect transistor Q2 is connected with battery pack 1 positive terminal, the source terminal of described field effect transistor Q2 is connected with the collector electrode of triode Q6 by resistance R 12, the source terminal of described field effect transistor Q2 is connected with the negative pole end of diode D4, the positive terminal of described diode D4 is connected with the drain electrode end of field effect transistor Q2, the drain electrode end of described field effect transistor Q2 is connected with charging circuit 4, the gate terminal of described field effect transistor Q2 is connected with the collector electrode of triode Q6, the base stage of described triode Q6 is connected with DC power supply by resistance R 13, the base stage of described triode Q6 is by capacitor C 7 ground connection, the grounded emitter of described triode Q6.
The beneficial effects of the utility model are:
Current sampling circuit of the present utility model adopts sign-changing amplifier testing circuit electric current, has reduced cost circuit cost; Adopted commercial power charged and two kinds of circuit of solar recharging to be connected in parallel, both can to battery pack, charge by a kind of charging circuit wherein, also can commercial power charged circuit and solar charging circuit battery pack is charged simultaneously, meet the needs of user's quick charge; In current foldback circuit, adopt field effect transistor, make protective circuit sensitiveer, better protective circuit; Circuit structure is simple, and stability is high.
[accompanying drawing explanation]
Fig. 1 is the utility model structural representation;
Fig. 2 is the commercial power charged circuit diagram of the utility model;
Fig. 3 is the utility model solar charging circuit figure;
Fig. 4 is the utility model civil power and solar charging circuit parallel circuits figure.
[embodiment]
Below in conjunction with accompanying drawing and execution mode of the present utility model, be described in further detail:
As shown in Figure 1, a kind of uninterrupted power supply charging circuit, include the voltage sampling circuit 2 for detection of battery pack 1 voltage swing, described voltage sampling circuit 2 is connected with controller 3, described controller 3 is connected with for the charging circuit 4 of constant charge size of current and for detection of the current sampling circuit 5 of battery pack 1 size of current, described charging circuit 4 is connected with power supply input circuit 6, the size of current that controller 3 detects battery pack 1 according to current sampling circuit 5 is carried out the charging current of constant charge circuit 4, realizes the constant current charge of battery pack 1.
As shown in Figure 2, be single commercial power charged circuit, described power supply input circuit 6 is civil power step-down rectifier input circuit 61;
As shown in Figure 3, be single solar charging circuit, described power supply input circuit 6 is solar energy input circuit 62;
As shown in Figure 4, the charging circuit being connected in parallel for civil power and solar energy.
Described current sampling circuit 5 includes sign-changing amplifier LM358, 1. the pin of described sign-changing amplifier LM358 is connected with controller 3 by resistance R 4, 1. 2. the pin of described sign-changing amplifier LM358 1 be connected by resistance R 5 and its pin, 2. the pin of described sign-changing amplifier LM358 is connected with resistance R 7 one end, resistance R 7 other ends are connected with power supply input circuit 6, resistance R 17 other ends are by resistance R 15 ground connection, resistance R 7 other ends are by capacitor C 6 ground connection, the pin of described sign-changing amplifier LM358 is 3. by resistance R 18 ground connection, adopt sign-changing amplifier to detect battery pack 1 electric current, reduced production cost.
Between described charging circuit 4 and battery pack 1, be connected with protective circuit 7.
Described protective circuit 7 includes field effect transistor Q2, diode D4 and triode Q6, the source terminal of described field effect transistor Q2 is connected with battery pack 1 positive terminal, the source terminal of described field effect transistor Q2 is connected with the collector electrode of triode Q6 by resistance R 12, the source terminal of described field effect transistor Q2 is connected with the negative pole end of diode D4, the positive terminal of described diode D4 is connected with the drain electrode end of field effect transistor Q2, the drain electrode end of described field effect transistor Q2 is connected with charging circuit 4, the gate terminal of described field effect transistor Q2 is connected with the collector electrode of triode Q6, the base stage of described triode Q6 is connected with DC power supply by resistance R 13, the base stage of described triode Q6 is by capacitor C 7 ground connection, the grounded emitter of described triode Q6, make circuit protection action sensitiveer, triode Q2, triode Q6 has realized respectively reverse connecting protection and the anti-charging protection function of cell voltage.
The course of work is as follows:
Access battery pack 1, the resistance R 14 in voltage sampling circuit 2, resistance R are depressed into the BT-AD port of controller 3 for 15 minutes, and controller 3 detects the voltage of battery pack 1; When controller 3 detection battery pack 1 there are not electricity, controller 3 is the pwm signal to charging circuit 4 output duty cycle maximums by port CH1-PWM, make triode Q5 conducting, triode Q4 conducting, triode Q3 cut-off, triode Q1 conducting in charging circuit 4, to battery pack 1 charging; When charging current is passed through the current sampling resistor R3 in current sampling circuit 5, resistance R 3 contact resistance R7 terminal voltages are for negative, 2. the pin of sign-changing amplifier LM358 is input as negative, 1. the pin of sign-changing amplifier LM358 1 is just output as, by voltage direction, 1. the pin of sign-changing amplifier LM358 connects the CH1-AD current detecting port of controller 3; When the sample rate current of current sampling circuit 5 is greater than set point, controller 3 reduces the output of duty ratio PWM by CHI-PWM port, triode Q5 ON time decline in charging circuit 4, the ON time decline of triode Q4, the ON time of triode Q1 are also declined, cause charging current to decline; When controller 3 is detected charging current and is dropped to certain value by current sampling circuit 5, controller 3 increases the output of duty ratio PWM by CHI-PWM port, make triode Q5 ON time increase, the ON time of triode Q4 rises, the ON time of triode Q1 rises, cause charging current to rise, so repeatedly regulate charging current, guarantee the constant of charging current.
Wherein, sign-changing amplifier LM358 end of oppisite phase, resistance R 3 earth terminals and battery pack 1 earth terminal link together, and current sampling circuit 5 connects the negative pole end of input power.
Claims (5)
1. a uninterrupted power supply charging circuit, it is characterized in that: include the voltage sampling circuit (2) for detection of battery pack (1) voltage swing, described voltage sampling circuit (2) is connected with controller (3), described controller (3) is connected with for the charging circuit (4) of constant charge size of current and for detection of the current sampling circuit (5) of battery pack (1) size of current, and described charging circuit (4) is connected with power supply input circuit (6).
2. a kind of uninterrupted power supply charging circuit according to claim 1, is characterized in that: between described charging circuit (4) and battery pack (1), be connected with protective circuit (7).
3. a kind of uninterrupted power supply charging circuit according to claim 1, is characterized in that: described power supply input circuit (6) is civil power step-down rectifier input circuit (61) or solar energy input circuit (62).
4. a kind of uninterrupted power supply charging circuit according to claim 1, it is characterized in that: described current sampling circuit (5) includes sign-changing amplifier LM358, 1. the pin of described sign-changing amplifier LM358 1 is connected with controller (3) by resistance R 4, 1. 2. the pin of described sign-changing amplifier LM358 1 be connected by resistance R 5 and its pin, 2. the pin of described sign-changing amplifier LM358 is connected with resistance R 7 one end, resistance R 7 other ends are connected with power supply input circuit (6), resistance R 17 other ends are by resistance R 15 ground connection, resistance R 7 other ends are by capacitor C 6 ground connection, the pin of described sign-changing amplifier LM358 is 3. by resistance R 18 ground connection.
5. a kind of uninterrupted power supply charging circuit according to claim 2, it is characterized in that: described protective circuit (7) includes field effect transistor Q2, diode D4 and triode Q6, the source terminal of described field effect transistor Q2 is connected with battery pack (1) positive terminal, the source terminal of described field effect transistor Q2 is connected with the collector electrode of triode Q6 by resistance R 12, the source terminal of described field effect transistor Q2 is connected with the negative pole end of diode D4, the positive terminal of described diode D4 is connected with the drain electrode end of field effect transistor Q2, the drain electrode end of described field effect transistor Q2 is connected with charging circuit (4), the gate terminal of described field effect transistor Q2 is connected with the collector electrode of triode Q6, the base stage of described triode Q6 is connected with DC power supply by resistance R 13, the base stage of described triode Q6 is by capacitor C 7 ground connection, the grounded emitter of described triode Q6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262808.2U CN203951221U (en) | 2014-05-21 | 2014-05-21 | A kind of uninterrupted power supply charging circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420262808.2U CN203951221U (en) | 2014-05-21 | 2014-05-21 | A kind of uninterrupted power supply charging circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203951221U true CN203951221U (en) | 2014-11-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420262808.2U Expired - Fee Related CN203951221U (en) | 2014-05-21 | 2014-05-21 | A kind of uninterrupted power supply charging circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203951221U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298337A (en) * | 2018-08-27 | 2019-02-01 | 东莞市北斗星电子科技有限公司 | Zero lotus of storage battery and its automatic monitoring big data terminal are transmitted based on UPS module |
| CN110784009A (en) * | 2019-10-28 | 2020-02-11 | 樊氏科技发展有限公司 | Charging current adjustable UPS power charging system |
-
2014
- 2014-05-21 CN CN201420262808.2U patent/CN203951221U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109298337A (en) * | 2018-08-27 | 2019-02-01 | 东莞市北斗星电子科技有限公司 | Zero lotus of storage battery and its automatic monitoring big data terminal are transmitted based on UPS module |
| CN110784009A (en) * | 2019-10-28 | 2020-02-11 | 樊氏科技发展有限公司 | Charging current adjustable UPS power charging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20141119 Termination date: 20170521 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |