CN206790150U - One kind is with anti-reverse external mobile battery over-discharge protection circuit - Google Patents
One kind is with anti-reverse external mobile battery over-discharge protection circuit Download PDFInfo
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- CN206790150U CN206790150U CN201720464484.4U CN201720464484U CN206790150U CN 206790150 U CN206790150 U CN 206790150U CN 201720464484 U CN201720464484 U CN 201720464484U CN 206790150 U CN206790150 U CN 206790150U
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Abstract
The utility model discloses one kind with anti-reverse external mobile battery over-discharge protection circuit; the load being connected including DC interfaces and with the DC interfaces; protection circuit is provided between the DC interfaces and the load, the protection circuit includes the first diode, the second diode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, triode, charging capacitor and voltage-regulator diode.Structure setting of the present utility model is reasonable, and it can prevent that battery caused by so as to effectively reduce improper use directly damages so as to protect battery for reversal connection, and so as to be advantageous to improve the service life of battery, stability in use is good and strong applicability.
Description
Technical field
The utility model belongs to mobile battery Cross prevention technical field, and in particular to a kind of with anti-reverse external mobile electricity
Pond over-discharge protection circuit.
Background technology
As external mobile fan, light fixture etc. constantly enter family, many fans are equipped with DC mouths with light fixture on the market, but
Many all have a defencive function, one it is reversed will burn machine, overcharge protection so must increase with power supply using mobile battery charging
Circuit, to ensure battery life, so as to adds somewhat to cost, applicability is restricted.
The content of the invention
The purpose of this utility model is to provide the anti-reverse external shifting of band that a kind of structure setting is reasonable and stability in use is good
Dynamic battery over-discharge protection circuit.
The technical scheme for realizing the utility model purpose is a kind of with anti-reverse external mobile battery over-discharge protection circuit, bag
DC interfaces and the load being connected with the DC interfaces are included, protection circuit, institute are provided between the DC interfaces and the load
Stating protection circuit includes the first diode, the second diode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th
Resistance, the 6th resistance, the 7th resistance, the 8th resistance, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, triode, charging capacitor and the pole of voltage stabilizing two
Pipe, first diode and the second diode are in parallel and negative pole is connected on the source electrode of the second metal-oxide-semiconductor, the first metal-oxide-semiconductor and
Positive pole is connected to the positive pole of DC interfaces, the drain electrode of second metal-oxide-semiconductor negative pole, the grid of second metal-oxide-semiconductor pass through second
It is grounded after resistance, charging capacitor series circuit, the 3rd resistor is connected between the source electrode and grid of the second metal-oxide-semiconductor, described
On the second resistance of the colelctor electrode connection of triode and the positive pole connection of charging capacitor, grounded emitter and base stage pass through the 6th
It is grounded after resistance, the 4th resistance series circuit, the 6th resistance of positive pole connection of the voltage-regulator diode and the company of the 4th resistance
On contact, negative pole be connected to the drain electrode of the second metal-oxide-semiconductor, the drain electrode of first metal-oxide-semiconductor is connected to the positive pole of DC interfaces, grid leads to
The 7th resistance eutral grounding is crossed, the 8th resistance is connected between grid and the drain electrode of the first metal-oxide-semiconductor, and the first resistor is connected to
Between the positive pole and negative pole of DC interfaces.
First metal-oxide-semiconductor and the second metal-oxide-semiconductor are PMOS.
The triode is PNP type triode.
The utility model has positive effect：Structure setting of the present utility model is reasonable, its can prevent reversal connection so as to
Battery is protected, battery caused by so as to effectively reduce improper use directly damages, so as to be advantageous to improve the use of battery
In the life-span, stability in use is good and strong applicability.
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 electrical block 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 that circuit structure of the present utility model shows
It is intended to.
See Fig. 1, it is a kind of with anti-reverse external mobile battery over-discharge protection circuit, including DC interfaces 1 and with the DC interfaces 1
The load 2 being connected, is provided with protection circuit 3 between the DC interfaces 1 and the load 2, and the protection circuit 3 includes first
Diode D1, the second diode D2, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5,
6th resistance R6, the 7th resistance R7, the 8th resistance R8, the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, triode Q3, charging capacitor C and
Voltage-regulator diode ZD1, the first diode D1 and the second diode D2B are in parallel and negative pole is connected to the second metal-oxide-semiconductor Q2,
On one metal-oxide-semiconductor Q1 source electrode and positive pole is connected to DC interfaces DC positive pole, the drain electrode of the second metal-oxide-semiconductor Q2 ground negative pole, described
By being grounded after second resistance R2, charging capacitor C series circuits, the 3rd resistor R3 is connected to second metal-oxide-semiconductor Q2 grid
Between second metal-oxide-semiconductor Q2 source electrode and grid, the second resistance R2's and charging capacitor C of the colelctor electrode connection of the triode Q3
On positive pole connection, grounded emitter and base stage by being grounded after the 6th resistance R6, the 4th resistance R4 series circuits, the voltage stabilizing
Diode ZD1 positive pole connection the 6th resistance R6 and the 4th resistance R4 tie point on, negative pole be connected to the second metal-oxide-semiconductor Q2's
Drain electrode, the drain electrode of the first metal-oxide-semiconductor Q1 is connected to DC interfaces DC positive pole, grid is grounded by the 7th resistance R7, and described the
Eight resistance R8 are connected between grid and the drain electrode of the first metal-oxide-semiconductor, and the first resistor R1 is connected to the positive pole of DC interfaces with bearing
Between pole.
First metal-oxide-semiconductor and the second metal-oxide-semiconductor are PMOS.
The triode is PNP type triode.
In the present embodiment, when DC external connection batteries, electric current is charged by D3/D4/R3/R2 to electric capacity C7, Q2PMOS pipe G poles
Turned on for low level, pass through ZD1/R6/Q3 conductings while powering load.During low current, D3, D4 combinational circuits are as counnter attack electricity
Road, Q1PMOS pipes combinational circuit is as anti-circnit NOT during high current.
When cell voltage is less than setting value ZD1, ZD1 is not turned on the function of reaching Cross prevention battery.
When DC1 external mobile batteries are reversed, Q1PMOS pipes G extremely high level is not turned on.
Structure setting of the present utility model is reasonable, and it can prevent reversal connection so as to protect battery, so as to effectively reduce
Battery directly damages caused by improper use, and so as to be advantageous to improve the service life of battery, stability in use is good and applicability
By force.
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 with anti-reverse external mobile battery over-discharge protection circuit, including DC interfaces and it is connected with the DC interfaces negative
Carry, it is characterised in that：Protection circuit is provided between the DC interfaces and the load, the protection circuit includes the one or two pole
Pipe, the second diode, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance, the 6th resistance, the 7th resistance,
8th resistance, the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, triode, charging capacitor and voltage-regulator diode, first diode and second
Diode is in parallel and negative pole is connected on the source electrode of the second metal-oxide-semiconductor, the first metal-oxide-semiconductor and positive pole is connected to the positive pole of DC interfaces,
The drain electrode of second metal-oxide-semiconductor ground negative pole, after the grid of second metal-oxide-semiconductor is by second resistance, charging capacitor series circuit
Ground connection, the 3rd resistor are connected between the source electrode and grid of the second metal-oxide-semiconductor, and the second of the colelctor electrode connection of the triode
On the connection of the positive pole of resistance and charging capacitor, grounded emitter and base stage by the 6th resistance, the 4th resistance series circuit after
Ground connection, the voltage-regulator diode positive pole connection the 6th resistance and the 4th resistance tie point on, negative pole be connected to the 2nd MOS
The drain electrode of pipe, the drain electrode of first metal-oxide-semiconductor are connected to the positive pole of DC interfaces, grid by the 7th resistance eutral grounding, and the described 8th
Resistance is connected between grid and the drain electrode of the first metal-oxide-semiconductor, and the first resistor is connected between the positive pole and negative pole of DC interfaces.
2. one kind according to claim 1 is with anti-reverse external mobile battery over-discharge protection circuit, it is characterised in that：It is described
First metal-oxide-semiconductor and the second metal-oxide-semiconductor are PMOS.
3. one kind according to claim 2 is with anti-reverse external mobile battery over-discharge protection circuit, it is characterised in that：It is described
Triode is PNP type triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720464484.4U CN206790150U (en) | 2017-04-28 | 2017-04-28 | One kind is with anti-reverse external mobile battery over-discharge protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720464484.4U CN206790150U (en) | 2017-04-28 | 2017-04-28 | One kind is with anti-reverse external mobile battery over-discharge protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790150U true CN206790150U (en) | 2017-12-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720464484.4U Active CN206790150U (en) | 2017-04-28 | 2017-04-28 | One kind is with anti-reverse external mobile battery over-discharge protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790150U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659925A (en) * | 2017-10-11 | 2019-04-19 | 致茂电子(苏州)有限公司 | Power supply device with wiring protection |
| CN114803220A (en) * | 2022-05-06 | 2022-07-29 | 广东佰润健康科技有限公司 | Intelligent garbage can based on Internet of things and multi-mode sensing technology and using method thereof |
-
2017
- 2017-04-28 CN CN201720464484.4U patent/CN206790150U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109659925A (en) * | 2017-10-11 | 2019-04-19 | 致茂电子(苏州)有限公司 | Power supply device with wiring protection |
| CN109659925B (en) * | 2017-10-11 | 2019-12-10 | 致茂电子(苏州)有限公司 | Power supply device with wiring protection |
| CN114803220A (en) * | 2022-05-06 | 2022-07-29 | 广东佰润健康科技有限公司 | Intelligent garbage can based on Internet of things and multi-mode sensing technology and using method thereof |
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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: 20221229 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 |