CN206099377U - Simple low -cost big electricity charging light -out circuit - Google Patents
Simple low -cost big electricity charging light -out circuit Download PDFInfo
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- CN206099377U CN206099377U CN201620516634.7U CN201620516634U CN206099377U CN 206099377 U CN206099377 U CN 206099377U CN 201620516634 U CN201620516634 U CN 201620516634U CN 206099377 U CN206099377 U CN 206099377U
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Abstract
The utility model discloses a simple low -cost big electricity charging light -out circuit, including USB plug terminals, rechargeable battery and load, still be equipped with the light -out control circuit that charges, the light -out control circuit that charges includes the MOS pipe, unidirectional diode, first resistance, the vehicle charging control system further comprises a second resistor, third resistance and charge indicator, the grid of MOS pipe passes through first ohmic connection on USB plug terminals's positive pole, unidirectional diode's positive pole is connected with USB plug terminals's positive pole and the negative pole is connected with the source electrode that MOS managed, the grid of MOS pipe passes through the negative pole of second ohmic connection at USB plug terminals, third resistance is connected between USB plug terminals's positive pole and negative pole after establishing ties with charge indicator. The utility model has the advantages of simple structure, the electronic component who uses is less, and the cost is reduced can effectively protect the load, and the stability in use is good, and the suitability is strong and the practicality is good.
Description
Technical field
The utility model is related to field of circuit technology, and more particularly to a kind of simple inexpensive large current charge is turned off the light circuit.
Background technology
With the maturation of electronic technology, electronic product quickly grows, but prior art electronic product is when start is charged
Transient high-current is easily produced so as to burn out load, so the stability in use of electronic product can be affected to a certain extent, is suitable for
Property and practicality are restricted.
Utility model content
In order to solve above-mentioned technical problem, main purpose of the present utility model is to provide a kind of simple structure, uses and stablize
Property good and strong applicability simple inexpensive large current charge turn off the light circuit.
The circuit the utility model proposes a kind of simple inexpensive large current charge is turned off the light, including USB inserting terminals and described
Rechargeable battery that USB inserting terminals are connected and the load being connected with the rechargeable battery, in the USB inserting terminals and institute
State and be additionally provided between rechargeable battery charging and turn off the light control circuit, the charging turns off the light control circuit including metal-oxide-semiconductor, unidirectional two pole
Pipe, first resistor, second resistance, 3rd resistor and charging indicator light, the grid of the metal-oxide-semiconductor is connected to by first resistor
On the positive pole of USB inserting terminals, the positive pole of the unilateral diode is connected and negative pole and MOS with the positive pole of USB inserting terminals
The source electrode of pipe is connected, and the drain electrode of the metal-oxide-semiconductor is connected with load, and the positive pole of the rechargeable battery is connected to unilateral diode
And the source electrode of metal-oxide-semiconductor between, the grid of the metal-oxide-semiconductor is connected to the negative pole of USB inserting terminals by second resistance, the described 3rd
Resistance is connected between the positive pole of USB inserting terminals and negative pole after connecting with the charging indicator light.
The metal-oxide-semiconductor is p-type metal-oxide-semiconductor.
The resistance of the first resistor and 3rd resistor is 1k Ω, and the resistance of the second resistance is 10k Ω.
Simple structure of the present utility model, the electronic component for using are less, so reducing cost to a certain extent, can have
Effect protection load, stability in use is good, strong applicability and practicality is good.
Description of the drawings
Fig. 1 is embodiment schematic diagram of the present utility model.
The realization of the utility model purpose, functional characteristics and advantage will be described further referring to the drawings in conjunction with the embodiments.
Specific embodiment
It should be appreciated that specific embodiment described herein is not used to limit this only to explain the utility model
Utility model.
With reference to Fig. 1, an embodiment of the present utility model is proposed, a kind of simple inexpensive large current charge is turned off the light circuit,
The rechargeable battery 2 that is connected with the USB inserting terminals 1 including USB inserting terminals 1 and it is connected with the rechargeable battery 2
Load 3, charging is additionally provided between the USB inserting terminals 1 and the rechargeable battery 2 and is turned off the light control circuit 4, and the charging is gone out
Lamp control circuit 4 refers to including metal-oxide-semiconductor Q1, unilateral diode D1, first resistor R1, second resistance R2,3rd resistor R3 and charging
Show lamp LED, the grid of the metal-oxide-semiconductor Q1 is connected on the positive pole of USB inserting terminals 1 by first resistor R1, described unidirectional two
The positive pole of pole pipe D1 is connected with the positive pole of USB inserting terminals 1 and negative pole is connected with the source electrode of metal-oxide-semiconductor Q1, the metal-oxide-semiconductor Q1
Drain electrode 3 be connected with load, the positive pole of the rechargeable battery 2 is connected between the source electrode of unilateral diode D1 and metal-oxide-semiconductor Q1,
The grid of the metal-oxide-semiconductor Q1 is connected to the negative pole of USB inserting terminals 1 by second resistance R2,3rd resistor R3 with it is described
It is connected between the positive pole of USB inserting terminals 1 and negative pole after charging indicator light LED strip connection.
The metal-oxide-semiconductor is p-type metal-oxide-semiconductor.
The resistance of the first resistor and 3rd resistor is 1k Ω, and the resistance of the second resistance is 10k Ω.
Its operation principle is summarized as follows：This product charging Universal mobile phone charger, charging current is big, 5V voltages when charging
After D1, P-MOS pipe Q1 S pole tensions are 4.3V, and voltage is more than 4.5V after the partial pressure of G poles, and Q1 cut-offs, charging current is only right
Battery charges.
After charging current disappears, circuit switchs to battery supplying power for outside, and Q1 S pole tensions are cell voltage, and G poles are because of the electricity that charges
Stream disappears and is in low-voltage, and P-MOS pipes Q1 conductings, battery is powered to product.
Simple structure of the present utility model, the electronic component for using are less, so reducing cost to a certain extent, can have
Effect protection load, stability in use is good, strong applicability and practicality is good.
Preferred embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited,
The equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are made, or directly or indirectly it is used in other phases
The technical field of pass, is included in the same manner in scope of patent protection of the present utility model.
Claims (3)
1. a kind of simple inexpensive large current charge is turned off the light circuit, including USB inserting terminals are connected with the USB inserting terminals
The rechargeable battery for connecing and the load being connected with the rechargeable battery, it is characterised in that：Fill with described in the USB inserting terminals
Be additionally provided with charging between battery to turn off the light control circuit, the charging turn off the light control circuit including metal-oxide-semiconductor, unilateral diode, the
One resistance, second resistance, 3rd resistor and charging indicator light, the grid of the metal-oxide-semiconductor is connected to USB grafting by first resistor
On the positive pole of terminal, the positive pole of the unilateral diode be connected with the positive pole of USB inserting terminals and negative pole and metal-oxide-semiconductor source electrode
It is connected, the drain electrode of the metal-oxide-semiconductor is connected with load, the positive pole of the rechargeable battery is connected to unilateral diode and metal-oxide-semiconductor
Source electrode between, the grid of the metal-oxide-semiconductor is connected to the negative pole of USB inserting terminals by second resistance, the 3rd resistor with
It is connected between the positive pole of USB inserting terminals and negative pole after the charging indicator light series connection.
2. simple inexpensive large current charge according to claim 1 is turned off the light circuit, it is characterised in that：The metal-oxide-semiconductor is P
Type metal-oxide-semiconductor.
3. simple inexpensive large current charge according to claim 2 is turned off the light circuit, it is characterised in that：The first resistor
It is 1k Ω with the resistance of 3rd resistor, the resistance of the second resistance is 10k Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620516634.7U CN206099377U (en) | 2016-06-01 | 2016-06-01 | Simple low -cost big electricity charging light -out circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620516634.7U CN206099377U (en) | 2016-06-01 | 2016-06-01 | Simple low -cost big electricity charging light -out circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206099377U true CN206099377U (en) | 2017-04-12 |
Family
ID=58471152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620516634.7U Active CN206099377U (en) | 2016-06-01 | 2016-06-01 | Simple low -cost big electricity charging light -out circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206099377U (en) |
-
2016
- 2016-06-01 CN CN201620516634.7U patent/CN206099377U/en active Active
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