CN208638066U - A kind of charger system - Google Patents
A kind of charger system Download PDFInfo
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- CN208638066U CN208638066U CN201821353998.3U CN201821353998U CN208638066U CN 208638066 U CN208638066 U CN 208638066U CN 201821353998 U CN201821353998 U CN 201821353998U CN 208638066 U CN208638066 U CN 208638066U
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- charging
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- control circuit
- charger system
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Abstract
It includes charging input power and battery pack that the utility model, which provides a kind of charger system, input power charge to battery-powered, multiple charging circuits are additionally provided between charging input power and battery pack, it is parallel with one another between multiple charging circuits, charger system further includes charging control circuit, it is electrically connected between charging control circuit and battery pack, it is electrically connected between each charging circuit and charging control circuit, after each charging circuit respectively includes the pwm signal of charging driving circuit and switching device charging driving circuit reception charging control circuit output and amplification, amplified pwm signal is exported to switching device.The utility model has the characteristics that quick charge, calorific value are few, stability is good.
Description
Technical field
The utility model relates to charger fields, in particular to a kind of charger system.
Background technique
With the development of science and technology, mobile electronic device such as mobile phone, tablet computer etc. has become in people's life not
The a part that can or lack, the battery consumption for also gradually resulting in mobile electronic device is too fast, and being unable to satisfy people makes the long period
With the demand of mobile electronic device.In the prior art, the battery capacity by increasing mobile electronic device improves movement
The cruising ability of electric device battery, correspondingly, again by charger to needed in mobile electronic device charging process increase fill
Electric current reduces the charging time.But with the increase of charging current, the calorific value of the power device in circuit also can be corresponding
Increase, once calorific value is excessively high, the case where will lead to emergent power device failure.
Summary of the invention
The purpose of the utility model is to provide a kind of quick charges, a kind of charger system that calorific value is few, stability is good
System.
To achieve the goals above, a kind of electric system provided by the utility model includes charging input power and battery
Group, charging input power is to battery-powered, it is characterised in that: is additionally provided with multiple chargings between charging input power and battery pack
Circuit, parallel with one another between multiple charging circuits, charger system further includes charging control circuit, charging control circuit and battery
It is electrically connected between group, is electrically connected between each charging circuit and charging control circuit, each charging circuit respectively includes one
A charging driving circuit and a switching device, charging driving circuit receive the pwm signal of charging control circuit output and amplification
Afterwards, amplified pwm signal is exported to switching device.
It can be seen that charge input power by being equipped with multiple charging circuits between charging input power and battery pack
It can achieve the purpose that give battery pack quick charge, and increase charge circuit by multiple charging circuits to battery-powered,
The thermal losses for reducing component in circuit reduces the calorific value in charger system.Preferably, charging control circuit can be with
After obtaining battery electric quantity signal, charged by sending the multiple charging circuits of pwm signal control to battery pack.Wherein, it opens
Closing device is the switch for controlling charging circuit, due to depositing between the pwm signal and charge circuit of charging control circuit output
In voltage differences, prevent the pwm signal of charging control circuit output is from directly driving the line switching of charging circuit, it is necessary to benefit
The charge switch that the pwm signal that charging control circuit exports is converted into voltage equity is controlled into signal with driving circuit, to control
The switch of charging circuit processed.
Further embodiment is that charger system includes current sense resistor, the first end and battery of current sense resistor
The negative pole end electrical connection of group, the second end of current sense resistor are also electrically connected with charging control circuit.
As it can be seen that being exported after the charging current that multiple charging circuits generate converges input battery anode in battery electrode
After flow through current sense resistor, charging control circuit can detecte out the charging current value of battery pack by current sense resistor.
Further embodiment is that each charging circuit respectively further comprises freewheeling diode and energy storage inductor, two pole of afterflow
Pipe is connected with energy storage inductor, and energy storage inductor is also connected with switching device.
As it can be seen that energy storage inductor can be by charge storage when switch device conductive charges；Switching device, which disconnects, stops charging
When, storage inductance starts to discharge, and is formed into a loop by freewheeling diode, realize the of short duration power supply to battery pack,
Further embodiment is that charger system includes reduction voltage circuit, the height that reduction voltage circuit exports the input power that charges
After voltage is converted to low-voltage, power to charging control circuit.
As it can be seen that the voltage that charging input power provides is high voltage, due to chip and component in charging control circuit
It can damage under high pressure, so needing reduction voltage circuit that the high voltage for input power output of charging is converted to suitable charge control electricity
After chip operating voltage in road, power to charging control circuit.
Further scheme is that charger system further includes charging indication, and two terminals of charging indication connect
It is connected to charging control circuit.
As it can be seen that charging control circuit can show the charged state and non-charging of charger system by charging indication
State.
Detailed description of the invention
Fig. 1 is a kind of inside electrical schematic diagram of charger system embodiment of the utility model.
Fig. 2 is the electrical schematic diagram of the first charging circuit and the second charging circuit in Fig. 1.
Fig. 3 is the electrical schematic diagram of reduction voltage circuit in Fig. 1.
Fig. 4 is the electrical schematic diagram of charging indication in Fig. 1.
The following is a further explanation of the present invention with reference to the accompanying drawings and embodiments.
Specific embodiment
Referring to Fig. 1, a kind of charger system of the present embodiment include charging input power 1, reduction voltage circuit 2, battery pack 4,
Charging control circuit 10 and charging indication 12, wherein charging input power 1 is powered to reduction voltage circuit 2, battery pack 4, drop
The high voltage that input power 1 exports that charges is converted to the low-voltage of chip operation in suitable charging control circuit 10 by volt circuit 2
Afterwards, it powers to charging control circuit 10, charging control circuit 10 is electric with charging indication 12, battery pack 4, current detecting respectively
It is electrically connected between resistance R1.
Preferably, it charges between input power 1 and battery pack 4 and is additionally provided with multiple charging circuits, the charging in the present embodiment
Circuit has 2, is the first charging circuit 6 and the second charging circuit 8 respectively, between the first charging circuit 6 and the second charging circuit 8
It is in parallel.In this way, being made by being equipped with the first charging circuit 6 and the second charging circuit 8 between charging input power 1 and battery pack 4
The input power 1 that must charge can not only be powered by the first charging circuit 6 to battery pack 4, can also pass through the second charging circuit 8
It powers to battery pack 4, can be realized to the purpose of 4 quick charge of battery pack, and increase charge circuit, reduce single charging
The thermal losses of device in circuit, to reduce the calorific value in charger system.
It is further preferred that charging control circuit 10 is electrically connected with the first charging circuit 6 and the second charging circuit 8 respectively
It connects, and the chip that charging control circuit 10 uses is SN8P2711A.First charging circuit 6 include first charging driving circuit 14,
Switching device Q1, energy storage inductor L1, capacitor C1 and sustained diode 1, wherein switching device Q1 can be thyristor and MOS
It manages, the switching device Q1 in the present embodiment is metal-oxide-semiconductor.The output end of charging control circuit 10 and the first charging driving circuit 14
The output end of input terminal electrical connection, the first charging driving circuit 14 is electrically connected with the grid of switching device Q1, switching device Q1's
Source electrode is electrically connected with the first end of energy storage inductor L1, and the first end of energy storage inductor L1 is also electrically connected with sustained diode 1, energy storage
The second end of inductance L1 is electrically connected with the first end of capacitor C1, the second end of sustained diode 1 and the second termination of capacitor C1
Ground, it is seen then that inductance L1, sustained diode 1 and capacitor C1 are capable of forming a closed circuit.
Second charging circuit 8 include second charging driving circuit 16, switching device Q2, energy storage inductor L2, capacitor C2 and
Sustained diode 2, wherein switching device Q2 is also metal-oxide-semiconductor, the output end of charging control circuit 10 and the first charging driving electricity
The input terminal on road 16 is electrically connected, and the output end of the first charging driving circuit 16 is electrically connected with the grid of switching device Q2, derailing switch
The source electrode of part Q2 is electrically connected with the first end of energy storage inductor L2 respectively, and the first end of energy storage inductor L2 is also electric with sustained diode 2
Connection, the second end of energy storage inductor L2 is electrically connected with the first end of capacitor C2, the second end of sustained diode 2 and capacitor C2's
Second end ground connection, it is seen then that inductance L2, sustained diode 2 and capacitor C2 are also capable of forming a closed circuit.
Circuit shown in Fig. 2 includes charging input end Vin, terminal B+, terminals P owerGND, terminal V_de, signal end
PWM1, signal end PWM2 signal, the first charging circuit 6, the second charging circuit 8 and current sense resistor R1, wherein charging is defeated
Entering to hold Vin is the voltage output end of charging input power 1, and terminal B+ is the positive terminal of battery pack 4, and terminals P owerGND is battery
The negative pole end of group 4, terminal V_de, signal end PWM1 and signal end PWM2 are the signal output ends of charging control circuit 10.Terminal
V_de is electrically connected with the second end of current sense resistor R1, and first end and the terminals P owerGND of current sense resistor R1 is electrically connected
Connect, charging input end Vin respectively with the switching device Q1 in the first charging circuit 6 drain electrode and the second charging circuit 8 in open
The drain electrode electrical connection of device Q2 is closed, terminal B+ is electric with the second end of the inductance L1 in the first charging circuit 6 and the first charging respectively
The second end of inductance L2 in road 8 is electrically connected.
Wherein, charging control circuit 10 is defeated by the first driving circuit 14 in signal end PWM1 and the first charging circuit 6
Enter end electrical connection, the first charging driving circuit 14 includes triode Q3, triode Q4 and triode Q5, the base stage of triode Q3
PWM1 signal is received, the collector of triode Q3 is electrically connected with the base stage of the base stage of triode Q4 and triode Q5 respectively, three-level
The grounded collector of pipe Q4, the grid of the emitter of triode Q4 and the emitter of triode Q5 respectively with switching device Q1 are electrically connected
It connects, the collector of triode Q5 is electrically connected with the drain electrode of switching device Q1.
Charging control circuit 10 is also electrically connected by the second driving circuit 16 in signal end PWM2 and the second charging circuit 8
It connects, the second charging driving circuit 16 includes triode Q6, triode Q7 and triode Q8, and the base stage of triode Q6 receives PWM2
The collector of signal, triode Q6 is electrically connected with the base stage of triode Q7, the grounded collector of triode Q7, and triode Q7's is another
The emitter of one end emitter and triode Q8 are electrically connected with the grid of switching device Q2 respectively, the collector of triode Q8 with open
Close the drain electrode electrical connection of device Q2.
Charging control circuit 10 in the present embodiment charger system controls the first charging circuit 6 and the second charging circuit 8
The embodiment of work is as follows:
When the input power 1 that charges is powered: from charging input end Vin input voltage to circuit, switching device Q1 is not led at this time
It is logical, it is generated without electric current.When charging control circuit 10 sends PWM1 signal to the first charging circuit 6, in the first charging circuit 6
Triode Q3 base stage receive PWM1 signal after be connected, triode Q3 sends triode Q4 and three poles for PWM1 signal again
In pipe Q5, triode O4 and triode O5 will be sent in switching device Q1 after the amplification of PWM1 signal jointly, so that switching device
After Q1 conducting, charging input end Vin, terminal B+, switching device Q1, the charging for forming a closure between energy storage inductor L1 are returned
Road is supplied to inductance L1 and battery pack 4 for electric current is generated in circuit.
The three-level that charging control circuit 10 also sends PWM2 signal to the second charging circuit 8, in the second charging circuit 8 simultaneously
The base stage of pipe Q6 is connected after receiving PWM2 signal, and triode Q6 sends triode Q7 and triode Q8 for PWM2 signal again
In, triode O7 and triode O8 will be sent in switching device Q2 after the amplification of PWM2 signal jointly, so that switching device Q2 is led
After logical, charging input end Vin, terminal B+, switching device Q2, the charging for forming another closure between energy storage inductor L2 are returned
The electric current generated in circuit is supplied to inductance L2 and battery pack 4 by road.In this way, allowing charging input power 1 by 2
A charge circuit is powered to battery pack 4, achievees the purpose that give battery pack 4 quick charge.
After the input power 1 that charges terminates power supply: inductance L1 and inductance L2 discharge respectively, due to inductance L1, capacitor C1 and
A circuit is formed between sustained diode 1, forms another time between inductance L2, capacitor C2 and sustained diode 2
Road, so, the of short duration power supply to battery pack 4 may be implemented in inductance L1 and inductance L2.Further reach and is quickly filled to battery pack 4
The purpose of electricity.
Preferably, can further be reached by increasing the quantity of charging circuit to the mesh of 4 quick charge of battery pack
's.
It is further preferred that due to being connected with each other between charging control circuit 10 and battery pack 4, so that charging control circuit
10 by chip SN8P2711A and corresponding peripheral circuit can charging voltage to battery pack 4 and battery information detect,
And charging control circuit 10 is electrically connected by terminals P owerGND with the second end of current sense resistor R1, current sense resistor R1
First end be electrically connected with the negative pole end PowerGND of battery pack 4 so that the charging current of battery pack 4 can by current detecting electricity
R1 is hindered, charging control circuit 10 can detect in charger system by the current value on detection current sense resistor R1
Charging current value.
Charging control circuit 10 in the charger system of the present embodiment may be implemented to filling in entire charger system
Electric current is controlled, and specific control mode is as follows: being first passed through charging control circuit 10 to battery pack 4 and is set a charging current
Value, when charging control circuit 10 detects that flowing through the current value on current sense resistor R1 is less than the charging current value of setting,
Charging control circuit 10 will increase the duty ratio of PWM1 signal and PWM2 signal, enhanced PWM1 signal and the output of PWM2 signal
Into the first charging driving circuit 14 and the second charging driving circuit 16, so that the first charging driving circuit 14 and the second charging are driven
The turn-on time of switching device Q1 and switching device Q2 in dynamic 16 increase, to increase the charging current for being supplied to battery pack 4.
When charging control circuit 10 detects the charging current for flowing through the current value on current sense resistor R1 and being greater than setting
When value, charging control circuit 10 will reduce the duty ratio of PWM1 signal and PWM2 signal, PWM1 signal and PWM2 letter after decrease
It number is output in the first charging driving circuit 14 and the second charging driving circuit 16, so that the first charging driving circuit 14 and second
The turn-on time of switching device Q1 and switching device Q2 in charging driving 16 reduce, and are supplied to filling for battery pack 4 to reduce
Electric current.As it can be seen that charging control circuit 10 constantly detects the current value on current sense resistor R1, then by adjusting PWM1 letter
Number and the duty ratio of PWM2 signal achieve the purpose that charging current in constant charge device system.
Charging control circuit 10 in the charger system of the present embodiment, which can also be realized, fills entire charger system
Piezoelectric voltage is controlled, and specific control mode is as follows: being first passed through charging control circuit 10 to battery pack 4 and is set a charging voltage
Value, charging control circuit 10 detect that the charging voltage value of battery pack 4 is the output voltage values of charger system, when charging is controlled
Circuit 10 processed detects that the output voltage values of charger system are less than the charging voltage value of setting, then charging control circuit 10 will increase
The duty ratio of big PWM1 signal and PWM2 signal, enhanced PWM1 signal and PWM2 signal are output to the first charging driving circuit
14 and second in charging driving circuit 16, and the first charging driving circuit 14 and the second charging driving circuit 16 increase triode Q1
Reach the output electricity for increasing charger system to increase the input voltage of charger system with the turn-on time of triode Q2
The purpose of pressure.
When charging control circuit 10 detects the output voltage values of charger system greater than the charging voltage value set, then
Charging control circuit 10 will reduce the duty ratio of PWM1 and PWM2, and the PWM1 signal and PWM2 signal after decrease are output to first and fill
In electric drive circuit 14 and the second charging driving circuit 16, so that the first charging driving circuit 14 and the second charging driving circuit 16
Turn-on time on middle switching device Q1 and switching device Q2 reduces, to reduce the input voltage of charger system, reaches and subtracts
The purpose of the output voltage of small charger system.Charging control circuit 10 ceaselessly detects the output voltage of charger system, leads to
The duty ratio of PWM1 and PWM2 are overregulated to achieve the purpose that the charging voltage in constant charge device system.
Circuit shown in Fig. 3 includes charging input end Vin, reference voltage terminal C, reduction voltage circuit 2, and reduction voltage circuit 2 includes two
Pole pipe D3, triode Q10, resistance R2, zener diode D4, resistance R3, resistance R4 and capacitor C3, wherein charging input end
Vin is the voltage output end of charging input power 1, and voltage input end VCC and reference voltage terminal C are the electricity of charging control circuit 10
Press input terminal.Charging input end Vin is electrically connected with the first end of diode D3, and the second end of diode D3 is respectively with resistance R2's
The collector of first end and triode Q10 electrical connection, the second end of resistance R2 respectively with the base electrode of triode Q10 and pressure stabilizing
The first end of diode D4 is electrically connected, and the emitter of triode Q10 is electrically connected with voltage input end VCC, the transmitting of triode Q10
Pole is also electrically connected with the first end of the first end of resistance R3 and capacitor C3 respectively, and the second end of zener diode D4 is with resistance R4's
First end electrical connection, and the second end ground connection of the second end of zener diode D4, the second end of resistance R3 and capacitor C3, resistance
The second end of R4 is electrically connected with reference voltage terminal C.Wherein, diode D3 is used to prevent the electric current reverse flow in circuit, resistance
R3 and capacitor C3 play filter action in circuit.
After the input power 1 that charges inputs a high voltage to reduction voltage circuit 2 by voltage input point Vin, resistance R2 is generated
Electric current flows into voltage-stabiliser tube D4, and after zener diode D4 burning voltage, electric current is exported using resistance R4 from reference voltage terminal C
One 2.5V voltage is to charging control circuit 10.Simultaneously electric current from the base stage of triode Q10 flow into so that triode Q10 be connected,
The drooping characteristic of itself when being connected using triode Q10 after triode Q10 reduces voltage, is exported low from voltage input end VCC
Voltage is to charging control circuit 10.
After as it can be seen that reduction voltage circuit 2 can will charge, the high voltage that input power 1 exports is converted to low-voltage, controlled to charging
Circuit 10 processed is powered.
Charging display circuit shown in Fig. 4 includes green optical signal terminal LEDG, red signal light terminal LEDR, resistance R5, hair
Optical diode DE, light emitting diode D6 and resistance R6, wherein charging display circuit 12 passes through green optical signal terminal LEDG respectively
The control signal that charging control circuit 10 exports is obtained with red signal light terminal LEDR.Green light shows terminal LEDG's and resistance R5
First end electrical connection, the second end of resistance R5 are electrically connected with the first end of light emitting diode D5, feux rouges display end LEDG and resistance
The first end of R6 is electrically connected, and the second end of resistance R6 is electrically connected with the first end of light emitting diode D6, and the of light emitting diode D5
The second end of two ends and light emitting diode D6 ground connection.When charged state, charging control circuit 10 is given by green light display end LEDG
After charging display circuit 12 inputs a control signal, after generating electric current by resistance R5, electric current flows into light emitting diode D5, makes
Light emitting diode D5 is obtained to give a green light.When non-charged state, charging control circuit 10 gives charging display by feux rouges display end LEDR
After circuit 12 inputs another control signal, after resistance R6 generates electric current, electric current flows into light emitting diode D6, so that luminous two
Pole pipe D6 sends out a warning.
As it can be seen that charging indication 12 can show the charged state and non-charged state of charging system.
It can be seen from the above, may be implemented by being equipped with multiple charging circuits between charging input power and battery pack to electricity
While the purpose of pond group quick charge, it is also possible that the calorific value in charger system is reduced, and charging control circuit
The electric current of constant charge device system and the purpose of voltage may be implemented by controlling multiple charging circuits.So that the utility model has
Have the characteristics that quick charge, calorific value are few, stability is good.
Claims (5)
1. a kind of charger system, including charging input power and battery pack, the charging input power are supplied to the battery pack
Electricity, it is characterised in that:
Multiple charging circuits, phase between the multiple charging circuit are additionally provided between the charging input power and the battery pack
Mutually in parallel, the charger system further includes charging control circuit, is electrically connected between the charging control circuit and the battery pack
It connects, is electrically connected between each charging circuit and the charging control circuit, each charging circuit respectively includes
Charge driving circuit and switching device, and the charging driving circuit receives the pwm signal of the charging control circuit output and puts
After big, Xiang Suoshu switching device exports amplified pwm signal.
2. a kind of charger system according to claim 1, it is characterised in that:
The charger system includes current sense resistor, the cathode of the first end of the current sense resistor and the battery pack
It is electrically connected between end, the second end of the current sense resistor is electrically connected with the charging control circuit.
3. a kind of charger system according to claim 2, it is characterised in that:
Each charging circuit respectively further comprises freewheeling diode and energy storage inductor, the freewheeling diode and the energy storage
Inductance series connection, the energy storage inductor are also connected with the switching device.
4. a kind of charger system according to any one of claims 1 to 3, it is characterised in that:
The charger system includes reduction voltage circuit, and the reduction voltage circuit converts the high voltage that the charging input power exports
After low-voltage, the power supply of Xiang Suoshu charging control circuit.
5. a kind of charger system according to any one of claims 1 to 3, it is characterised in that:
The charger system further includes charging indication, and two terminals of the charging indication are connected to the charging
Control circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821353998.3U CN208638066U (en) | 2018-08-21 | 2018-08-21 | A kind of charger system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821353998.3U CN208638066U (en) | 2018-08-21 | 2018-08-21 | A kind of charger system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208638066U true CN208638066U (en) | 2019-03-22 |
Family
ID=65742660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821353998.3U Active CN208638066U (en) | 2018-08-21 | 2018-08-21 | A kind of charger system |
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| Country | Link |
|---|---|
| CN (1) | CN208638066U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112290626A (en) * | 2020-10-20 | 2021-01-29 | 深圳市云鼠科技开发有限公司 | High-safety-degree sweeper charging control circuit |
| CN113141034A (en) * | 2020-01-20 | 2021-07-20 | 华润微电子（重庆）有限公司 | Battery charging control circuit and battery protection system |
-
2018
- 2018-08-21 CN CN201821353998.3U patent/CN208638066U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113141034A (en) * | 2020-01-20 | 2021-07-20 | 华润微电子（重庆）有限公司 | Battery charging control circuit and battery protection system |
| CN113141034B (en) * | 2020-01-20 | 2023-02-10 | 华润微电子（重庆）有限公司 | Battery charging control circuit and battery protection system |
| CN112290626A (en) * | 2020-10-20 | 2021-01-29 | 深圳市云鼠科技开发有限公司 | High-safety-degree sweeper charging control circuit |
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