CN204068398U - A kind of 12V/24V lead accumulator intelligent charge control board circuit - Google Patents
A kind of 12V/24V lead accumulator intelligent charge control board circuit Download PDFInfo
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- CN204068398U CN204068398U CN201420305226.8U CN201420305226U CN204068398U CN 204068398 U CN204068398 U CN 204068398U CN 201420305226 U CN201420305226 U CN 201420305226U CN 204068398 U CN204068398 U CN 204068398U
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Abstract
The utility model relates generally to a kind of 12V/24V lead accumulator intelligent charge control board circuit.This utility model mainly comprises: Transformer Rectifier circuit, constant voltage/trickle mode switching circuit, control relay circuit, voltage sampling circuit, single chip machine controlling circuit, electronic regulation filter circuit, voice warning circuit.Mains 220V accesses Industrial Frequency Transformer T1 through fuse and mains switch control relay RELAY1, accesses bridge rectifier BRIDGE, rectification output pulsation direct current through 12V/24V selective relay RELAY2.When relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state.When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery.Q4 base stage and ground access voltage stabilizing didoe D4 between holding, and input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, and now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable.
Description
The utility model discloses a kind of intelligent charger control board circuit, relate generally to a kind of 12V/24V lead accumulator intelligent charge control board circuit.
Background technology
Existing 12V/24V lead accumulator charge operation is cumbersome, and in use, the redness that should first charger be carried and green output line, receive on the positive and negative terminals of storage battery charger, notices that polarity can not connect instead.Then voltage-regulation switch is transferred on the voltage gear by charging battery jar (12V/24V), at this moment switches on power.Finally current regulating switch is adjusted one grade clockwise, charger is started working. and less stable, fail safe is lower, easily burns out storage battery.
Summary of the invention
(1) technical problem that will solve
Increase the stability of battery charger, increase the fail safe of storage battery.Reduce operating procedure, make battery charger simple to operate.
(2) technical scheme
The utility model relates generally to a kind of 12V/24V lead accumulator intelligent charge control board circuit.This utility model mainly comprises: Transformer Rectifier circuit, constant voltage/trickle mode switching circuit, control relay circuit, voltage sampling circuit, single chip machine controlling circuit, electronic regulation filter circuit, voice warning circuit.Mains 220V accesses Industrial Frequency Transformer T1 through fuse and mains switch control relay RELAY1, accesses bridge rectifier BRIDGE, rectification output pulsation direct current through 12V/24V selective relay RELAY2.When relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state.When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery.Q4 base stage and ground access voltage stabilizing didoe D4 between holding, and input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, and now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable.
Further, described Transformer Rectifier circuit is that mains 220V is accessed Industrial Frequency Transformer T1 through fuse and mains switch control relay RELAY1, secondary output double cross stream about 12V voltage, bridge rectifier BRIDGE is accessed, rectification output pulsation direct current through 12V/24V selective relay RELAY2.Because the charged with direct current of fluctuation has certain maintenance function to storage battery, so without bulky capacitor filtering.
Further, described constant voltage/trickle mode switching circuit, when relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state.When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery.Constant-current circuit operation principle: three terminal regulator LM7805 is operated in suspended state, accesses a resistance R15 between output 3 and common port 2, thus forms a fixing constant-current source.Its output current I=(Uout/R15)+Iq, in formula, Iq is the quiescent current of LM7805, is about 10m A.When the less i.e. output current of R15 is larger, Iq can be ignored.LM7805 is constant by changing self pressure reduction to maintain by the electric current of load.R15 value can be determined by R15=Uout/IL.Because of Uout=5 V.IL=0.5 ~ 2A, the span therefore determined is 2.5 ~ 10 Ω.R15 resistance is determined according to current needs.
Further, described control relay circuit is when transistor Q1 base stage is transfused to high level, and transistor saturation conduction, collector electrode becomes low level, therefore relay coil energising, contact adhesive.When transistor Q1 base stage is transfused to low level, transistor cutoff, relay coil power-off, contact disconnects.In figure, VCC is about the 12V voltage that electronic regulation filter exports.
Further, described voltage sampling circuit, 10 high-precision AD converters in built-in 8 tunnel of STC12C5604AD, storage battery, through R13 and R14 dividing potential drop, is sent into Chip Microcomputer A/D C7/P1.7 mouth and is carried out sampling calculating, calculate magnitude of voltage.Control LED light on and off show electricity, judge storage battery kind and control relay RELAY2 switches charging voltage, control relay RELAY3 switches constant voltage/trickle pattern, control relay RELAY1 carries out complete machine power-off.
Further, described single chip machine controlling circuit, adopts the 12C5604AD of STC Corporation as intelligent controller.LED1-LED8 is battery capacity indication, indicates 10%, 30%, 50%, 80%, 90%, 100% floating charge, 12V, 24V respectively.R1-R8 is current-limiting resistance.LED9 is power supply indicator, and serial connection current-limiting resistance R16, is connected between Industrial Frequency Transformer secondary output 12V and 24V.
Further, described electronic regulation filter circuit is electronic regulation filter, principle of stabilized voltage is as follows: Q4 base stage and ground access voltage stabilizing didoe D4 between holding, input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable.Attention: the stability characteristic (quality) of this voltage is that it doesn't matter with electronic filter circuit itself because the stabilized voltage characteristic of D4 determines.R12 simultaneously or the current limiting safeguard resistor of D4.After adding voltage stabilizing didoe D4, the size changing R12 can not change Q4 emitter output voltage size, and the emitter junction due to Q4 exists PN junction voltage drop, so emitter output voltage is more smaller than the voltage stabilizing value of D4.C1, C2 electric capacity plays filter action.Q4 is multiple tube herein, and total current amplification factor is that each tube current multiplication factor is long-pending, compares single tube, improves filter effect and carrying load ability.Pressure stabilization filter exports and meets three terminal regulator 78L05, and 78L05 stable output+5V voltage is that single-chip microcomputer is powered.
Further, described voice warning circuit, single-chip microcomputer is done speech chip 6,7,8 foot operation and then is play different suggestion voice.
(3) beneficial effect
The utility model utilizes Transformer Rectifier circuit
,constant voltage/trickle mode switching circuit, control relay circuit, these circuit of voltage sampling circuit add the stability of charger, more safe, better protect storage battery, extend the useful life of storage battery.Also add the warning device of voice warning circuit, the utility model can be made simple to operate, a protective effect is also played to storage battery.
Accompanying drawing explanation
Fig. 1 is circuit schematic process flow diagram of the present utility model.
Fig. 2 is integrated circuit schematic diagram of the present utility model.
Fig. 3 is Transformer Rectifier circuit diagram of the present utility model.
Fig. 4 is constant voltage of the present utility model/trickle mode switching circuit figure.
Fig. 5 is control relay circuit figure of the present utility model.
Fig. 6 is single chip machine controlling circuit figure of the present utility model.
Fig. 7 is voltage sampling circuit figure of the present utility model.
Fig. 8 is electronic regulation filter circuit figure of the present utility model.
Fig. 9 is voice warning circuit figure of the present utility model.
Embodiment
The utility model relates generally to a kind of 12V/24V lead accumulator intelligent charge control board circuit.This utility model mainly comprises: Transformer Rectifier circuit, constant voltage/trickle mode switching circuit, control relay circuit, voltage sampling circuit, single chip machine controlling circuit, electronic regulation filter circuit, voice warning circuit.As shown in Figure 2, mains 220V accesses Industrial Frequency Transformer T1 through fuse and mains switch control relay RELAY1, accesses bridge rectifier BRIDGE, rectification output pulsation direct current through 12V/24V selective relay RELAY2.When relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state.When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery.Q4 base stage and ground access voltage stabilizing didoe D4 between holding, and input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, and now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable.
As shown in Figure 3, described Transformer Rectifier circuit is that mains 220V is accessed Industrial Frequency Transformer T1 through fuse and mains switch control relay RELAY1, secondary output double cross stream about 12V voltage, bridge rectifier BRIDGE is accessed, rectification output pulsation direct current through 12V/24V selective relay RELAY2.Because the charged with direct current of fluctuation has certain maintenance function to storage battery, so without bulky capacitor filtering.
As shown in Figure 4, described constant voltage/trickle mode switching circuit, when relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state.When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery.Constant-current circuit operation principle: three terminal regulator LM7805 is operated in suspended state, accesses a resistance R15 between output 3 and common port 2, thus forms a fixing constant-current source.Its output current I=(Uout/R15)+Iq, in formula, Iq is the quiescent current of LM7805, is about 10m A.When the less i.e. output current of R15 is larger, Iq can be ignored.LM7805 is constant by changing self pressure reduction to maintain by the electric current of load.R15 value can be determined by R15=Uout/IL.Because of Uout=5 V.IL=0.5 ~ 2A, the span therefore determined is 2.5 ~ 10 Ω.R15 resistance is determined according to current needs.
As shown in Figure 5, described control relay circuit is when transistor Q1 base stage is transfused to high level, and transistor saturation conduction, collector electrode becomes low level, therefore relay coil energising, contact adhesive.When transistor Q1 base stage is transfused to low level, transistor cutoff, relay coil power-off, contact disconnects.In figure, VCC is about the 12V voltage that electronic regulation filter exports.
As shown in Figure 6, described single chip machine controlling circuit, adopts the 12C5604AD of STC Corporation as intelligent controller.LED1-LED8 is battery capacity indication, indicates 10%, 30%, 50%, 80%, 90%, 100% floating charge, 12V, 24V respectively.R1-R8 is current-limiting resistance.LED9 is power supply indicator, and serial connection current-limiting resistance R16, is connected between Industrial Frequency Transformer secondary output 12V and 24V.
As shown in Figure 7, described voltage sampling circuit, 10 high-precision AD converters in built-in 8 tunnel of STC12C5604AD, storage battery, through R13 and R14 dividing potential drop, is sent into Chip Microcomputer A/D C7/P1.7 mouth and is carried out sampling calculating, calculate magnitude of voltage.Control LED light on and off show electricity, judge storage battery kind and control relay RELAY2 switches charging voltage, control relay RELAY3 switches constant voltage/trickle pattern, control relay RELAY1 carries out complete machine power-off.
As shown in Figure 8, described electronic regulation filter circuit is electronic regulation filter, principle of stabilized voltage is as follows: Q4 base stage and ground access voltage stabilizing didoe D4 between holding, input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable.Attention: the stability characteristic (quality) of this voltage is that it doesn't matter with electronic filter circuit itself because the stabilized voltage characteristic of D4 determines.R12 simultaneously or the current limiting safeguard resistor of D4.After adding voltage stabilizing didoe D4, the size changing R12 can not change Q4 emitter output voltage size, and the emitter junction due to Q4 exists PN junction voltage drop, so emitter output voltage is more smaller than the voltage stabilizing value of D4.C1, C2 electric capacity plays filter action.Q4 is multiple tube herein, and total current amplification factor is that each tube current multiplication factor is long-pending, compares single tube, improves filter effect and carrying load ability.Pressure stabilization filter exports and meets three terminal regulator 78L05, and 78L05 stable output+5V voltage is that single-chip microcomputer is powered.
As shown in Figure 9, described voice warning circuit, single-chip microcomputer is done speech chip 6,7,8 foot operation and then is play different suggestion voice.
Claims (8)
1. a 12V/24V lead accumulator intelligent charge control board circuit; This main circuit will comprise: Transformer Rectifier circuit, constant voltage/trickle mode switching circuit, control relay circuit, voltage sampling circuit, single chip machine controlling circuit, electronic regulation filter circuit, voice warning circuit; Mains 220V accesses Industrial Frequency Transformer T1 through fuse and mains switch control relay RELAY1, accesses bridge rectifier BRIDGE, rectification output pulsation direct current through 12V/24V selective relay RELAY2; When relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state; When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery; Q4 base stage and ground access voltage stabilizing didoe D4 between holding, and input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, and now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable.
2. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, it is characterized in that: described Transformer Rectifier circuit is that mains 220V is accessed Industrial Frequency Transformer through fuse and mains switch control relay RELAY1, secondary output double cross stream about 12V voltage, bridge rectifier BRIDGE is accessed, rectification output pulsation direct current through 12V/24V selective relay RELAY2; Because the charged with direct current of fluctuation has certain maintenance function to storage battery, so without bulky capacitor filtering.
3. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, it is characterized in that: described constant voltage/trickle mode switching circuit, when relay R ELAY3 not adhesive, rectifier bridge exports and directly connects storage battery, is now constant voltage charge state; When constant voltage charging phase terminates, enter the trickle charge stage, relay R ELAY3 adhesive, rectifier bridge access constant-current circuit, constant current output is to storage battery.
4. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, it is characterized in that: described control relay circuit is when transistor Q1 base stage is transfused to high level, transistor saturation conduction, collector electrode becomes low level, therefore relay coil energising, contact adhesive; When transistor Q1 base stage is transfused to low level, transistor cutoff, relay coil power-off, contact disconnects; In figure, VCC is about the 12V voltage that electronic regulation filter exports.
5. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, it is characterized in that: described voltage sampling circuit, 10 high-precision AD converters in built-in 8 tunnel of STC12C5604AD, storage battery is through R13 and R14 dividing potential drop, send into Chip Microcomputer A/D C7/P1.7 mouth and carry out sampling calculating, calculate magnitude of voltage; Control LED light on and off show electricity, judge storage battery kind and control relay RELAY2 switches charging voltage, control relay RELAY3 switches constant voltage/trickle pattern, control relay RELAY1 carries out complete machine power-off.
6. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, is characterized in that: described single chip machine controlling circuit, adopts the 12C5604AD of STC Corporation as intelligent controller; LED1-LED8 is battery capacity indication, indicates 10%, 30%, 50%, 80%, 90%, 100% floating charge, 12V, 24V respectively; R1-R8 is current-limiting resistance; LED9 is power supply indicator, and serial connection current-limiting resistance R16, is connected between Industrial Frequency Transformer secondary output 12V and 24V.
7. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, it is characterized in that: described electronic regulation filter circuit is electronic regulation filter, principle of stabilized voltage is as follows: Q4 base stage and ground access voltage stabilizing didoe D4 between holding, input voltage makes voltage stabilizing didoe D4 be in reverse-bias state through R12, now the stabilized voltage characteristic of D4 makes the base voltage of Q4 pipe stablize, and the direct voltage that such Q4 emitter exports is also more stable; Attention: the stability characteristic (quality) of this voltage is that it doesn't matter with electronic filter circuit itself because the stabilized voltage characteristic of D4 determines; R12 simultaneously or the current limiting safeguard resistor of D4; After adding voltage stabilizing didoe D4, the size changing R12 can not change Q4 emitter output voltage size, and the emitter junction due to Q4 exists PN junction voltage drop, so emitter output voltage is more smaller than the voltage stabilizing value of D4; C1, C2 electric capacity plays filter action; Q4 is multiple tube herein, and total current amplification factor is that each tube current multiplication factor is long-pending, compares single tube, improves filter effect and carrying load ability; Pressure stabilization filter exports and meets three terminal regulator 78L05, and 78L05 stable output+5V voltage is that single-chip microcomputer is powered.
8. a kind of 12V/24V lead accumulator intelligent charge control board circuit according to claim 1, is characterized in that: described voice warning circuit, and single-chip microcomputer is done speech chip 6,7,8 foot operation and then play different suggestion voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305226.8U CN204068398U (en) | 2014-06-10 | 2014-06-10 | A kind of 12V/24V lead accumulator intelligent charge control board circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420305226.8U CN204068398U (en) | 2014-06-10 | 2014-06-10 | A kind of 12V/24V lead accumulator intelligent charge control board circuit |
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| CN204068398U true CN204068398U (en) | 2014-12-31 |
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| CN201420305226.8U Expired - Fee Related CN204068398U (en) | 2014-06-10 | 2014-06-10 | A kind of 12V/24V lead accumulator intelligent charge control board circuit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171374A (en) * | 2016-03-08 | 2017-09-15 | 长沙恒凯电子科技有限公司 | A kind of charger |
| CN107910928A (en) * | 2018-01-03 | 2018-04-13 | 苏州驼力新能源科技有限公司 | A kind of power rectifier resonance quick charger and its control method |
| CN113721096A (en) * | 2021-08-31 | 2021-11-30 | 展讯通信（上海）有限公司 | Analog battery circuit and charging test system |
-
2014
- 2014-06-10 CN CN201420305226.8U patent/CN204068398U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107171374A (en) * | 2016-03-08 | 2017-09-15 | 长沙恒凯电子科技有限公司 | A kind of charger |
| CN107910928A (en) * | 2018-01-03 | 2018-04-13 | 苏州驼力新能源科技有限公司 | A kind of power rectifier resonance quick charger and its control method |
| CN113721096A (en) * | 2021-08-31 | 2021-11-30 | 展讯通信（上海）有限公司 | Analog battery circuit and charging test system |
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| 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: 20141231 Termination date: 20150610 |
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| EXPY | Termination of patent right or utility model |