CN206077037U - A kind of resistance-capacitance depressurization rechargeable battery condition indication circuit - Google Patents
A kind of resistance-capacitance depressurization rechargeable battery condition indication circuit Download PDFInfo
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- CN206077037U CN206077037U CN201621106236.4U CN201621106236U CN206077037U CN 206077037 U CN206077037 U CN 206077037U CN 201621106236 U CN201621106236 U CN 201621106236U CN 206077037 U CN206077037 U CN 206077037U
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Abstract
This utility model provides a kind of resistance-capacitance depressurization rechargeable battery condition indication circuit; including the rechargeable battery that AC mains supply inserting terminals, filter circuit of pressure-stabilizing are connected after the 6th unilateral diode, the 5th unilateral diode series circuit with filter circuit of pressure-stabilizing; the rechargeable battery condition indication circuit and overcharge protection circuit being connected with rechargeable battery is additionally provided with, rechargeable battery condition indication circuit includes the 11st resistance, the 12nd resistance, the 4th audion, the 5th resistance, bi-colour LED, the tenth resistance, the 4th resistance, the 9th resistance and the 7th resistance.Circuit structure design of the present utility model is reasonable, which passes through the 4th audion, the 5th resistance, the 7th resistance and the 4th resistance and is engaged to realize that the state to rechargeable battery is indicated, solve the technical deficiency that battery charging state in conventional art cannot be indicated, stability in use is good and strong applicability.
Description
Technical field
This utility model belongs to charging circuit technical field, more specifically, is to be related to a kind of resistance-capacitance depressurization rechargeable battery
Condition indication circuit.
Background technology
Portable illumination equipment is widely used in the middle of people's daily life, typically built-in rechargeable battery, this kind of to set
Standby to belong to low-end product, charging modes are generally resistance-capacitance depressurization and charge more.The most of charging indicator lights of this kind equipment simply allow use
Family knows whether charging circuit is typically difficult to learn in normal charging condition in work, but battery；It is how double-colored by one
Which kind of state display lamp reflection battery is in, and this just proposes a great challenge to design.
Utility model content
This utility model is to provide that a kind of stability in use is good and the resistance-capacitance depressurization rechargeable battery state instruction of strong applicability
Circuit, it is intended to solve the technical deficiency that battery charging state in conventional art cannot be indicated.
This utility model provides a kind of resistance-capacitance depressurization rechargeable battery condition indication circuit, including AC mains supply inserted terminals
Son, the filter circuit of pressure-stabilizing being connected with the AC mains supplies inserting terminal and the filter circuit of pressure-stabilizing are single by the 6th
The rechargeable battery being connected to after diode, the 5th unilateral diode series circuit, and the positive pole of the 6th unilateral diode
It is connected with filter circuit of pressure-stabilizing, the negative pole of the 6th unilateral diode is connected with the positive pole of the 5th unilateral diode, institute
The negative pole for stating the 5th unilateral diode is connected with rechargeable battery, is additionally provided with the rechargeable battery shape being connected with the rechargeable battery
State indicating circuit and overcharge protection circuit, the rechargeable battery condition indication circuit include the 11st resistance, the 12nd resistance,
Four audions, the 5th resistance, bi-colour LED, the tenth resistance, the 4th resistance, the 9th resistance and the 7th resistance, the described 4th 3
The emitter stage of pole pipe is connected to the positive pole of the 6th unilateral diode, the base stage of the 4th audion is connected by the 12nd resistance
In the negative pole of the 6th unilateral diode, by the 9th resistance eutral grounding line, the described 11st is electric for the colelctor electrode of the 4th audion
Resistance is connected between the negative pole of emitter stage and the 6th unilateral diode of the 4th audion, and the colelctor electrode of the 4th audion leads to
Cross the 5th resistance to be connected on the green light positive pole of bi-colour LED, the negative pole of the bi-colour LED passes through the tenth resistance eutral grounding,
4th resistance with the 7th resistant series and the 7th resistance one end be connected to the positive pole of the 6th unilateral diode, the 4th
One end of resistance is connected on the red light positive pole of bi-colour LED.
The overcharge protection circuit include the 8th resistance, Zener diode, second resistance, the second audion, the 6th resistance,
3rd audion, the 13rd resistance, the first audion and 3rd resistor, the base stage of second audion are connect by second resistance
The colelctor electrode of ground, the grounded emitter of second audion and the colelctor electrode and the 3rd audion of second audion leads to
Cross the 6th resistance to be connected on the junction point of the 7th resistance and the 4th resistance, the colelctor electrode of the 3rd audion and the two or three pole
The colelctor electrode of pipe is connected, and the emitter stage of the 3rd audion is connected on the junction point of the 7th resistance and the 4th resistance, institute
The base stage for stating the 3rd audion is connected with the colelctor electrode of the first audion by the 13rd resistance, first audion send out
The base stage of emitter grounding and first audion is connected on the colelctor electrode of the 4th audion by 3rd resistor, and the described 8th
Resistance is connected with Zener diode and one end of the 8th resistance is connected to the positive pole and Zener diode of the 6th unilateral diode
Positive pole is connected with the base stage of the second audion.
First audion and the second audion are NPN type triode, and the 3rd audion and the 4th audion are positive-negative-positive
Audion.
The beneficial effects of the utility model are：Rationally, which passes through the four or three pole to circuit structure design of the present utility model
Pipe, the 5th resistance, the 7th resistance and the 4th resistance are engaged to realize indicating the state of rechargeable battery, solve tradition
The technical deficiency that battery charging state cannot be indicated in technology, stability in use is good and strong applicability.
Description of the drawings
The electrical block diagram that Fig. 1 is provided for this utility model embodiment.
Specific embodiment
In order that technical problem to be solved in the utility model, technical scheme and beneficial effect become more apparent, with
Lower combination drawings and Examples, are further elaborated to this utility model.It should be appreciated that concrete reality described herein
Example is applied only to explain this utility model, be not used to limit this utility model.
Please also refer to Fig. 1, refer to for a kind of resistance-capacitance depressurization rechargeable battery state that this utility model preferred embodiment is provided
Show circuit, including AC mains supplies inserting terminal 1, the filter circuit of pressure-stabilizing being connected with the AC mains supplies inserting terminal 1
2nd, it is connected after the 6th unilateral diode D6, the 5th unilateral diode D5 series circuits with the filter circuit of pressure-stabilizing 2
Rechargeable battery BT, and the positive pole of the 6th unilateral diode D6 is connected with filter circuit of pressure-stabilizing 2, the 6th unidirectional two pole
The negative pole of pipe D6 is connected with the positive pole of the 5th unilateral diode D5, the negative pole and rechargeable battery of the 5th unilateral diode D5
BT is connected, and is additionally provided with the rechargeable battery condition indication circuit 3 and overcharge protection circuit 4 being connected with the rechargeable battery BT,
The rechargeable battery condition indication circuit 3 includes the 11st resistance R11, the 12nd resistance R12, the 4th audion Q4, the 5th electric
Resistance R5, bi-colour LED LED, the tenth resistance R10, the 4th resistance R4, the 9th resistance R9 and the 7th resistance R7, the four or three pole
The emitter stage of pipe Q4 is connected to the positive pole of the 6th unilateral diode D6, the base stage of the 4th audion Q4 passes through the 12nd resistance
R12 is connected to the negative pole of the 6th unilateral diode D6, and the colelctor electrode of the 4th audion Q4 passes through the 9th resistance R9 earth leads,
The 11st resistance R11 is connected between the negative pole of emitter stage and the 6th unilateral diode D4 of the 4th audion Q4, described
The colelctor electrode of the 4th audion Q4 is connected on the green light positive pole of bi-colour LED LED by the 5th resistance R5, the double-colored finger
Show that the negative pole of lamp LED is grounded by the tenth resistance R10, the 4th resistance R4 is connected and the 7th resistance with the 7th resistance R7
One end of R7 is connected to the positive pole of the 6th unilateral diode D6, one end of the 4th resistance R4 and is connected to the red of bi-colour LED LED
On lamp positive pole.
The overcharge protection circuit 4 include the 8th resistance R8, Zener diode Z1, second resistance R2, the second audion Q2,
6th resistance R6, the 3rd audion Q3, the 13rd resistance R13, the first audion Q1 and 3rd resistor R3, second audion
The base stage of Q2 is grounded by second resistance R2, the grounded emitter of the second audion Q2 and the second audion Q2's
The colelctor electrode of colelctor electrode and the 3rd audion Q3 is connected to the connection of the 7th resistance R7 and the 4th resistance R4 by the 6th resistance R6
On point, the colelctor electrode of the 3rd audion Q3 is connected with the colelctor electrode of the second audion Q2, the 3rd audion Q3's
Emitter stage is connected on the junction point of the 7th resistance R7 and the 4th resistance R4, and the base stage of the 3rd audion Q3 passes through the 13rd
Resistance R13 is connected with the colelctor electrode of the first audion Q1, the grounded emitter of the first audion Q1 and the described 1st
The base stage of pole pipe Q1 is connected on the colelctor electrode of the 4th audion Q4 by 3rd resistor R3, the 8th resistance R8 and voltage stabilizing two
One end of the series connection of pole pipe Z1 and the 8th resistance R8 is connected to the positive pole of the positive pole and Zener diode Z1 of the 6th unilateral diode D6
It is connected with the base stage of the second audion Q2.
First audion and the second audion are NPN type triode, and the 3rd audion and the 4th audion are positive-negative-positive
Audion.
Circuit operation principle：
Circuit charging modes charge for resistance-capacitance depressurization, AC civil power Jing C1, are filtered by D1, D2, D3, D4, and C2 rectification after R1
Battery BT is charged after ripple；When battery is in normal charging condition, electric current Jing D6, D5 are charged to battery, now
Q4 is equal to D6 two ends pressure drop with base stage pressure drop difference due to emitter stage, and now D6 is in the conduction state, and pressure drop difference is more than or equal to
0.6V, Q4 are in the conduction state, and voltage lights double-colored green light part by R5, while power supply makes bi-colour light by R7, R4
Red light part is also lighted, so now the state of bi-colour LED is yellow, indicates that battery is in normal charging condition；
When charging normal, as Q4 is turned on, voltage x current Jing R3 to Q1 base stages, Q3 base stages are low level, and Q3 is also switched on；When
(represent that battery has been filled with) when cell voltage is increased to setting value, stabilivolt Z1 conductings turn on Q2, cause quilt at R4 high potentials
It is low level that Q2 and Q3 draws, and bi-colour light red light part does not have enough voltage to maintain conducting and extinguish；Now bi-colour LED
State is green, indicates that battery has been filled with；Due to Q2, Q3 is absorbed most charge electricity by R7 all in conducting state, power supply
Stream, reaches the effect for overcharging protection；
When battery is in damage or open-circuit condition, now only few or no charging current, there is no enough electricity
Stream flows through R11, and D6 can not be turned on, Q4 cut-offs, causes Q1, and Q3 is all in cut-off state；Power supply is raised rapidly, Z1 conductings, is passed through
R7, R6, Q2, arrival overcharge protected effect, and bi-colour light green light part is extinguished, and red light part passes through R7, R4, in illuminating state,
Now the state of bi-colour LED is redness, indicates that battery (is damaged or opened a way) in abnormality；
Rationally, which passes through the 4th audion, the 5th resistance, the 7th resistance and the 4th to circuit structure design of the present utility model
Resistance is engaged to realize indicating that battery charging state cannot be indicated in solving conventional art to the state of rechargeable battery
Technical deficiency, stability in use is good and strong applicability.
Preferred embodiment of the present utility model is the foregoing is only, it is not to limit this utility model, all at this
Any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in this utility model
Protection domain within.
Claims (3)
1. a kind of resistance-capacitance depressurization rechargeable battery condition indication circuit, including AC mains supplies inserting terminal and AC civil powers electricity
Filter circuit of pressure-stabilizing that source inserting terminal is connected and the filter circuit of pressure-stabilizing are by the 6th unilateral diode, the 5th unidirectional
The rechargeable battery being connected after diode series circuit, and the positive pole of the 6th unilateral diode is connected with filter circuit of pressure-stabilizing
Connect, the negative pole of the 6th unilateral diode is connected with the positive pole of the 5th unilateral diode, the 5th unilateral diode
Negative pole is connected with rechargeable battery, it is characterised in that：It is additionally provided with the rechargeable battery state instruction being connected with the rechargeable battery
Circuit and overcharge protection circuit, the rechargeable battery condition indication circuit include the 11st resistance, the 12nd resistance, the four or three pole
Pipe, the 5th resistance, bi-colour LED, the tenth resistance, the 4th resistance, the 9th resistance and the 7th resistance, the 4th audion
Emitter stage is connected to the positive pole of the 6th unilateral diode, the base stage of the 4th audion and is connected to the 6th by the 12nd resistance
The negative pole of unilateral diode, the colelctor electrode of the 4th audion is by the 9th resistance eutral grounding line, the 11st resistance connection
Between the negative pole of the emitter stage and the 6th unilateral diode of the 4th audion, the colelctor electrode of the 4th audion passes through the 5th
Resistance is connected on the green light positive pole of bi-colour LED, the negative pole of the bi-colour LED by the tenth resistance eutral grounding, described the
Four resistance are with the 7th resistant series and one end of the 7th resistance is connected to the positive pole of the 6th unilateral diode, the 4th resistance
One end is connected on the red light positive pole of bi-colour LED.
2. a kind of resistance-capacitance depressurization rechargeable battery condition indication circuit according to claim 1, it is characterised in that：It is described to overcharge
Protection circuit include the 8th resistance, Zener diode, second resistance, the second audion, the 6th resistance, the 3rd audion, the tenth
Three resistance, the first audion and 3rd resistor, the base stage of second audion are grounded by second resistance, the two or three pole
The colelctor electrode of the grounded emitter of pipe and second audion is connected to by the 6th resistance with the colelctor electrode of the 3rd audion
On the junction point of the 7th resistance and the 4th resistance, the colelctor electrode of the 3rd audion is connected with the colelctor electrode of the second audion
Connect, the emitter stage of the 3rd audion is connected on the junction point of the 7th resistance and the 4th resistance, the 3rd audion
Base stage is connected with the colelctor electrode of the first audion by the 13rd resistance, the grounded emitter of first audion and described
The base stage of the first audion is connected on the colelctor electrode of the 4th audion by 3rd resistor, the 8th resistance and two pole of voltage stabilizing
One end of pipe series connection and the 8th resistance is connected to positive pole and the positive pole of Zener diode and the two or three pole of the 6th unilateral diode
The base stage of pipe is connected.
3. a kind of resistance-capacitance depressurization rechargeable battery condition indication circuit according to claim 2, it is characterised in that：Described first
Audion and the second audion are NPN type triode, and the 3rd audion and the 4th audion are PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621106236.4U CN206077037U (en) | 2016-09-30 | 2016-09-30 | A kind of resistance-capacitance depressurization rechargeable battery condition indication circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621106236.4U CN206077037U (en) | 2016-09-30 | 2016-09-30 | A kind of resistance-capacitance depressurization rechargeable battery condition indication circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206077037U true CN206077037U (en) | 2017-04-05 |
Family
ID=58441924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621106236.4U Active CN206077037U (en) | 2016-09-30 | 2016-09-30 | A kind of resistance-capacitance depressurization rechargeable battery condition indication circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206077037U (en) |
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2016
- 2016-09-30 CN CN201621106236.4U patent/CN206077037U/en active Active
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