CN206788339U - A kind of novel battery low-voltage cue circuit - Google Patents
A kind of novel battery low-voltage cue circuit Download PDFInfo
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- CN206788339U CN206788339U CN201720464470.2U CN201720464470U CN206788339U CN 206788339 U CN206788339 U CN 206788339U CN 201720464470 U CN201720464470 U CN 201720464470U CN 206788339 U CN206788339 U CN 206788339U
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Abstract
The utility model discloses a kind of novel battery low-voltage cue circuit, including battery, with the battery by switching the load being connected, it is additionally provided with voltage detecting bleeder circuit, the voltage stabilizing source circuit being connected with the voltage detecting bleeder circuit, the low pressure indicating circuit being connected with the voltage stabilizing source circuit, the voltage stabilizing source circuit includes TL431 voltage stabilizings source chip and second resistance, and the low pressure indicating circuit includes the first triode, the second triode, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance and common cathode bi-colour LED.Structure setting of the present utility model is reasonable, and it can effectively realize that battery low pressure indicates that, so as to facilitate deciding on the low-pressure state of battery, stability in use is good and strong applicability, practicality are good.
Description
Technical field
The utility model belongs to battery support circuit technical field, and in particular to a kind of novel battery low-voltage prompting electricity
Road.
Background technology
In daily life, there are various charged pool products, for example emergency luminaire, toy for children etc., battery are them
An indispensable part, has plenty of recyclable rechargeable battery, in such charged pool product, the protection to battery is necessary
Design, but it does not have corresponding battery low-pressure state prompting structure, so as to which its applicability and reality can be influenceed to a certain extent
The property used.
The content of the invention
The purpose of this utility model is to provide the novel battery low-voltage that a kind of structure setting is reasonable and stability in use is good
Cue circuit.
The technical scheme for realizing the utility model purpose is a kind of novel battery low-voltage cue circuit, including battery, with
The battery by switching the load that is connected, be additionally provided with voltage detecting bleeder circuit, with the voltage detecting bleeder circuit phase
The voltage stabilizing source circuit of connection, the low pressure indicating circuit being connected with the voltage stabilizing source circuit, the voltage stabilizing source circuit include TL431
Voltage stabilizing source chip and second resistance, the low pressure indicating circuit include the first triode, the second triode, 3rd resistor, the 4th
Resistance, the 5th resistance, the 6th resistance and common cathode bi-colour LED, one end of the second resistance be connected to the positive pole of battery,
The other end is connected on the negative electrode of TL431 voltage stabilizing source chips, the plus earth of the TL431 voltage stabilizings source chip and reference pole and electricity
Pressure detection bleeder circuit is connected, and the base stage of second triode is connected to the company of second resistance and TL431 voltage stabilizing source chips
On contact, colelctor electrode is connected on the positive pole of battery and emitter stage is connected in common cathode bi-colour LED by the 5th resistance
On the positive pole of RED lamps, the base stage of first triode is by the way that the 4th resistance is connected to the base stage of the second triode, colelctor electrode leads to
Cross 3rd resistor to be connected on the positive pole of battery and grounded emitter, the positive pole of GREER lamps in the common cathode bi-colour LED
It is connected to by the 6th resistance on the colelctor electrode of the first triode, the minus earth of the common cathode bi-colour LED.
The voltage detecting bleeder circuit includes the first resistor and the 7th resistance of series connection, the other end of the first resistor
The other end for being connected to the positive pole of battery and the 7th resistance is connected to the negative pole of battery, the reference of the TL431 voltage stabilizings source chip
Pole is connected on the tie point of first resistor and the 7th resistance.
First triode and the second triode are NPN type triode.
The utility model has positive effect：Structure setting of the present utility model is reasonable, and it can effectively realize electricity
Pond low pressure instruction, so as to facilitate deciding on the low-pressure state of battery, stability in use is good and strong applicability, practicality are good.
Brief description of the drawings
In order that content of the present utility model is more likely to be clearly understood, below according to specific embodiment and combine attached
Figure, is described in further detail to the utility model, wherein：
Fig. 1 is circuit diagram of the present utility model.
Embodiment
(embodiment 1)
Fig. 1 shows a kind of embodiment of the present utility model, and wherein Fig. 1 is circuit diagram of the present utility model.
See Fig. 1, a kind of novel battery low-voltage cue circuit, including battery 1, be connected by switching SW1 with the battery
The load 2 connect, be additionally provided with voltage detecting bleeder circuit 3, the voltage stabilizing source circuit 4 being connected with the voltage detecting bleeder circuit,
The low pressure indicating circuit 5 being connected with the voltage stabilizing source circuit, the voltage stabilizing source circuit 4 include TL431 source of stable pressure chip IC 1
With second resistance R2, the low pressure indicating circuit 5 includes the first triode Q1, the second triode Q2,3rd resistor R3, the 4th electricity
Resistance R4, the 5th resistance R5, the 6th resistance R6 and common cathode bi-colour LED LED1, one end of the second resistance R2 are connected to electricity
Positive pole, the other end in pond 1 are connected on the negative electrode of TL431 source of stable pressure chip IC 1, the anode of the TL431 source of stable pressure chip IC 1
It is grounded and is connected with reference to pole with voltage detecting bleeder circuit 3, the base stage of the second triode Q2 is connected to second resistance R2
With on the tie point of TL431 source of stable pressure chip IC 1, colelctor electrode is connected on the positive pole of battery 1 and emitter stage passes through the 5th resistance
R5 is connected in common cathode bi-colour LED LED1 on the positive pole of RED lamps, and the base stage of the first triode Q1 passes through the 4th electricity
R4 is connected to the second triode Q2 base stage, colelctor electrode is connected to by 3rd resistor R3 on the positive pole of battery 1 and emitter stage for resistance
It is grounded, the positive pole of GREER lamps is connected to the first triode Q1 by the 6th resistance R6 in the common cathode bi-colour LED LED1
Colelctor electrode on, the minus earth of the common cathode bi-colour LED LED1.
The voltage detecting bleeder circuit 3 includes the first resistor R1 and the 7th resistance R7 of series connection, the first resistor
The other end that the other end is connected to the positive pole of battery and the 7th resistance is connected to the negative pole of battery, the TL431 voltage stabilizings source chip
IC1 reference pole is connected on the tie point of first resistor and the 7th resistance.
First triode and the second triode are NPN type triode.
Its operation principle is summarized as follows：LED1 is the red green LED light of common cathode, when battery is in high pressure conditions, is referred to
Show that lamp gives a green light；When battery is in low-pressure state, indicator lamp green light goes out when red, represents battery undervoltage；
IC1 is 431 source of stable pressure, and R1, R7 composition voltage detecting bleeder circuit, when battery is in high pressure conditions, R7 partial pressures are big
Turned in 2.5V, TL431, Q2 is Npn triode, and base stage draws ground, the cut-off of CE poles, and red LED is gone out；Q1 is Npn triode, similarly
And the cut-off of CE poles, for green LED by R3, R6 connects BAT positive poles, green light, represents that battery is in high pressure conditions；
When battery is in under-voltage condition, VR7 partial pressures are less than 2.5V, 431 cut-offs, and Q2 is turned on by R2, when red；Q1 leads to
R2, R4 conducting are crossed, R3 is directly grounded by Q1, and green light positive pole is pulled low, and now, green light goes out, and represents that battery is in under-voltage condition.
Structure setting of the present utility model is reasonable, and it can effectively realize that battery low pressure indicates, so as to facilitate deciding on
The low-pressure state of battery, stability in use is good and strong applicability, practicality are good.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need and unable to give all embodiments
It is exhaustive.And these belong to the obvious changes or variations that connotation of the present utility model is extended out and still fall within this practicality
New protection domain.
Claims (3)
1. a kind of novel battery low-voltage cue circuit, including battery, with the battery by switching the load being connected, it is special
Sign is：Be additionally provided with voltage detecting bleeder circuit, the voltage stabilizing source circuit being connected with the voltage detecting bleeder circuit, with it is described
The low pressure indicating circuit that voltage stabilizing source circuit is connected, the voltage stabilizing source circuit include TL431 voltage stabilizings source chip and second resistance, institute
State low pressure indicating circuit include the first triode, the second triode, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance and
Common cathode bi-colour LED, one end of the second resistance is connected to the positive pole of battery, the other end is connected to TL431 voltage stabilizing source cores
On the negative electrode of piece, the plus earth of the TL431 voltage stabilizings source chip and it is connected with reference to pole with voltage detecting bleeder circuit, it is described
The base stage of second triode is connected on the tie point of second resistance and TL431 voltage stabilizing source chips, colelctor electrode is connected to battery
On positive pole and emitter stage is connected in common cathode bi-colour LED on the positive pole of RED lamps by the 5th resistance, the one or three pole
The base stage of pipe is connected to the positive pole that the base stage of the second triode, colelctor electrode be connected to by 3rd resistor battery by the 4th resistance
Upper and grounded emitter, the positive pole of GREER lamps is connected to the one or three pole by the 6th resistance in the common cathode bi-colour LED
On the colelctor electrode of pipe, the minus earth of the common cathode bi-colour LED.
A kind of 2. novel battery low-voltage cue circuit according to claim 1, it is characterised in that：The voltage detecting point
Volt circuit includes the first resistor of series connection and the 7th resistance, the other end of the first resistor are connected to the positive pole and the 7th of battery
The other end of resistance is connected to the negative pole of battery, and the reference pole of the TL431 voltage stabilizings source chip is connected to first resistor and the 7th
On the tie point of resistance.
A kind of 3. novel battery low-voltage cue circuit according to claim 2, it is characterised in that：First triode
It is NPN type triode with the second triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720464470.2U CN206788339U (en) | 2017-04-28 | 2017-04-28 | A kind of novel battery low-voltage cue circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720464470.2U CN206788339U (en) | 2017-04-28 | 2017-04-28 | A kind of novel battery low-voltage cue circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206788339U true CN206788339U (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720464470.2U Active CN206788339U (en) | 2017-04-28 | 2017-04-28 | A kind of novel battery low-voltage cue circuit |
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| Country | Link |
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| CN (1) | CN206788339U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542818A (en) * | 2019-09-23 | 2021-03-23 | 中车株洲电力机车研究所有限公司 | Input undervoltage protection circuit and power panel comprising same |
-
2017
- 2017-04-28 CN CN201720464470.2U patent/CN206788339U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542818A (en) * | 2019-09-23 | 2021-03-23 | 中车株洲电力机车研究所有限公司 | Input undervoltage protection circuit and power panel comprising same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230105 Address after: 529000 Room 203, Floor 2, Building 1, No. 21, Jintong Road, Tangxia Town, Pengjiang District, Jiangmen City, Guangdong Province Patentee after: Jiangmen Xiaosong Intelligent Technology Co.,Ltd. Address before: 529000 301, Floor 3, Building 2, No. 21, Jintong Road, Tangxia Town, Pengjiang District, Jiangmen City, Guangdong Province Patentee before: JIANGMEN PENGJIANG DISTRICT JINYING TECHNOLOGY Co.,Ltd. |
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| TR01 | Transfer of patent right |