CN205829167U - One-way conduction power control - Google Patents
One-way conduction power control Download PDFInfo
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- CN205829167U CN205829167U CN201620694073.XU CN201620694073U CN205829167U CN 205829167 U CN205829167 U CN 205829167U CN 201620694073 U CN201620694073 U CN 201620694073U CN 205829167 U CN205829167 U CN 205829167U
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- effect transistor
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Abstract
One-way conduction power control, including housing, housing is provided with 3 binding posts, respectively negative input terminal, positive terminal and face terminals；Enclosure interior is provided with control circuit, it includes negative pole input pin, positive pole pin, load prongs, PNP triode and N-channel field effect transistor, negative pole input pin electrical connection negative input terminal, positive pole pin electrical connection positive terminal, load prongs electrical connection face terminals, the emitter stage of PNP triode connects positive pole pin, base stage connects load prongs, colelctor electrode connects the grid of N-channel field effect transistor, and the drain electrode of N-channel field effect transistor connects load prongs, and source electrode connects negative pole input pin.This utility model simple in construction, by arranging N-channel field effect transistor and PNP triode when load is connected correct with power supply, power supply just can be to load supplying, and the most not to load supplying, principle simply, implements more convenient installation cost cheap.
Description
Technical field
This utility model belongs to power supply control field, is specifically related to a kind of one-way conduction power control.
Background technology
Load is powered when, need the existence of power supply, but some loads are easy to occur to connect anti-
Phenomenon.In the prior art, to the common solution of anti-phenomenon waiting be by identification circuit identification load positive and negative,
Realize load correct wiring.Complicated and relatively costly with the circuit that upper type relates to.
Utility model content
This utility model aims to provide simple in construction, one-way conduction power control easy to use.
For solving above-mentioned technical problem, this utility model provides following technical scheme: one-way conduction power supply controls dress
Putting, including housing, housing is provided with 3 binding posts, and 3 binding posts are respectively negative input terminal, positive terminal and bear
Carry terminal；
Enclosure interior is provided with control circuit, and control circuit includes negative pole input pin, positive pole pin, load prongs, PNP tri-
Pole pipe and N-channel field effect transistor, negative pole input pin electrical connection negative input terminal, positive pole pin electrical connection positive terminal, negative
Carrying pin electrical connection face terminals, the emitter stage of PNP triode connects positive pole pin, and the base stage of PNP triode connects load and draws
Foot, the colelctor electrode of PNP triode connects the grid of N-channel field effect transistor, and the drain electrode of N-channel field effect transistor connects load prongs, N
The source electrode of channel field-effect pipe connects negative pole input pin.
Being connected by anti-turning circuit between grid and the source electrode of N-channel field effect transistor, anti-turning circuit includes in parallel company
The diode connect and the 4th resistance, the negative pole of diode connects the grid of N-channel field effect transistor, and the positive pole of diode connects N ditch
The source electrode of road field effect transistor.
Connect between base stage and the load prongs of PNP triode and have the second resistance.
Connected by the first resistance between base stage and the emitter stage of PNP triode of PNP triode.
The emitter stage of PNP triode and the grid of N-channel field effect transistor are connected by the 3rd resistance.
By above technical scheme, the beneficial effects of the utility model are:
1.N channel field-effect pipe and PNP triode can turn on when load is connected correct with power supply, so that power supply
To load supplying；The cut-off when load and power supply wiring mistake, so that power supply is not to load supplying.
2. the anti-turning circuit of diode and the 4th resistance composition is possible to prevent N-channel field effect transistor to be reversed electromotive force to hit
Wear, thus ensure the normal table work of N-channel field effect transistor.
Connecting the second resistance between base stage and the load prongs of 3.PNP audion, PNP triode can be entered by the second resistance
Row is effectively protected, and prevents overtension in the base stage of PNP triode, makes PNP triode working stability, extends PNP triode
Working life.
The base stage of 4.PNP audion and the emitter stage of PNP triode are connected by the first resistance, and on the one hand the first resistance exist
Electric current is consumed when disconnecting by PNP triode, it is ensured that effective closedown of PNP triode；On the other hand, it makes PNP tri-pole
Managing more anti-interference, service behaviour is more stable.
Connected by the 3rd resistance between emitter stage and the grid of N-channel field effect transistor of 5.PNP audion, the of setting
Three resistance can realize the effect of dividing potential drop, prevents the voltage being added on the grid of N-channel field effect transistor excessive, N-channel field occurs
The phenomenon that effect pipe cannot normally work.
Accompanying drawing explanation
Fig. 1 is this utility model structural representation；
Fig. 2 is control circuit schematic diagram.
Detailed description of the invention
One-way conduction power control as shown in Figure 1, including housing 4, housing 4 is in rectangular-shaped.Housing 4 sets
It is equipped with 3 binding posts, respectively negative input terminal 1, positive terminal 2 and face terminals 3.Wherein arranging when, will
Negative input terminal 1 and face terminals 3 distribution are arranged at the two ends of housing 4, and positive terminal 2 is arranged at the middle part of housing 4, thus
It is easy to wiring.
It is internally provided with control circuit at housing 4, in order to ensure the stability of control circuit, prevents outer signals to control
Circuit processed impacts, and the material of housing 4 is metal.As in figure 2 it is shown, control circuit includes negative pole input pin B, positive pole pin
A, load prongs C, PNP triode Q1 and N-channel field effect transistor Q2.
Power control described in the utility model is used for the power supply situation to load supplying, and wherein load refers to level etc.
Need the element of charging.Work when, negative input terminal 1 electrically connects negative pole input pin B, and positive terminal 2 electrically connects
Positive pole pin A, face terminals 3 electrically connects load prongs C.
The emitter stage of PNP triode Q1 connects positive pole pin A, and the emitter stage of PNP triode Q1 is also by the first resistance R1
Connecting the base stage of PNP triode Q1, wherein electric current is consumed by the first resistance R1 mono-aspect when PNP triode Q1 disconnects,
Ensure effective closedown of PNP triode Q1；On the other hand, it makes PNP triode Q1 more anti-interference, and service behaviour is more steady
Fixed, in order to improve effect, the resistance of the first resistance R1 is 10 Ω ~ 30 Ω.
The base stage of PNP triode Q1 connects load prongs C by the second resistance R2, and the second resistance R2 can be to PNP tri-pole
Pipe Q1 is effectively protected so that it is working stability, extends its working life, in order in order to be effective, and the resistance of the second resistance R2
It is 15 Ω ~ 25 Ω.
The colelctor electrode of PNP triode Q1 connects the grid of N-channel field effect transistor Q2, the 3rd of setting by the 3rd resistance R3
Resistance R3 can realize the effect of dividing potential drop, prevents the voltage being added on the grid of N-channel field effect transistor Q2 excessive, N-channel occurs
Field effect transistor Q2 is phenomenon that is that cannot normally work because of breakdown.
The drain electrode of N-channel field effect transistor Q2 connects load prongs C, and the source electrode of N-channel field effect transistor Q2 connects negative pole input
Pin B.Puncture to prevent N-channel field effect transistor Q2 to be reversed electromotive force, thus ensure the normal steady of N-channel field effect transistor Q2
Fixed work, connects between the grid and the source electrode of N-channel field effect transistor Q2 of N-channel field effect transistor Q2 and has anti-turning circuit, put
Turning circuit includes that diode D and the 4th resistance R4, diode D and the 4th resistance R4 are connected in parallel, and wherein, diode D's is negative
Pole connects the grid of N-channel field effect transistor Q2, and the positive pole of diode D connects the source electrode of N-channel field effect transistor Q2.When there being reverse electricity
During kinetic potential, it can consume between the 4th resistance and diode, thus does not affect the normal work of N-channel field effect transistor Q2.
The when of work, negative pole input pin B and positive pole pin A connects positive pole and the negative pole of power supply respectively, and load is just
Pole and negative pole connect positive pole pin A and load prongs C respectively.
When line is correct, because having initial low level on the negative pole of load so that there is low level in load prongs C,
Under low level effect in load prongs C, PNP triode Q1 turns on, and the colelctor electrode of PNP triode Q1 is high level,
Therefore be also high level on the grid of N-channel field effect transistor Q2, N-channel field effect transistor Q2 turns on；Electric current on negative pole input pin B
Load prongs C is entered so that load prongs C is that the negative pole of load is powered, and positive pole pin A is negative by N-channel field effect transistor Q2
The positive pole carried is powered, thus is embodied as the purpose of load supplying.
When Miswire, the negative pole such as load connects positive pole pin A, positive pole connection load prongs C of load, now,
Because there being initial high level in load prongs C, PNP triode Q1 is ended, and N-channel field effect transistor Q2 is also at cut-off state, electricity
Load will not be powered by source, thus the safety of proof load.
Implementing when, load can be storage battery, and when using power supply to charge storage battery, only wiring is correct, and power supply is
Can be charged storage battery, otherwise N-channel field effect transistor Q2 in control circuit and PNP triode Q1 are in cut-off state,
Storage battery will not be charged.
This utility model simple in construction, by arranging N-channel field effect transistor Q2 and PNP triode Q1 when loading with power supply even
When connecing correct, power supply just can be to load supplying, and the most not to load supplying, principle is simple, implements more convenient, each yuan
Part with low cost, thus reduce installation cost.
Claims (5)
1. one-way conduction power control, including housing, it is characterised in that: housing is provided with 3 binding posts, 3 wiring
Terminal is respectively negative input terminal, positive terminal and face terminals；
Enclosure interior is provided with control circuit, and control circuit includes negative pole input pin, positive pole pin, load prongs, PNP triode
With N-channel field effect transistor, negative pole input pin electrical connection negative input terminal, positive pole pin electrical connection positive terminal, load is drawn
Foot electrical connection face terminals, the emitter stage of PNP triode connects positive pole pin, and the base stage of PNP triode connects load prongs,
The colelctor electrode of PNP triode connects the grid of N-channel field effect transistor, and the drain electrode of N-channel field effect transistor connects load prongs, N ditch
The source electrode of road field effect transistor connects negative pole input pin.
2. one-way conduction power control as claimed in claim 1, it is characterised in that: the grid of N-channel field effect transistor and
Being connected by anti-turning circuit between source electrode, anti-turning circuit includes diode and the 4th resistance being connected in parallel, diode
Negative pole connects the grid of N-channel field effect transistor, and the positive pole of diode connects the source electrode of N-channel field effect transistor.
3. one-way conduction power control as claimed in claim 2, it is characterised in that: the base stage of PNP triode and load
Connect between pin and have the second resistance.
4. one-way conduction power control as claimed in claim 3, it is characterised in that: the base stage of PNP triode and PNP tri-
Connected by the first resistance between the emitter stage of pole pipe.
5. the one-way conduction power control as described in Claims 1-4 any one, it is characterised in that: PNP triode
The grid of emitter stage and N-channel field effect transistor is connected by the 3rd resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620694073.XU CN205829167U (en) | 2016-07-05 | 2016-07-05 | One-way conduction power control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620694073.XU CN205829167U (en) | 2016-07-05 | 2016-07-05 | One-way conduction power control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205829167U true CN205829167U (en) | 2016-12-21 |
Family
ID=57567153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620694073.XU Active CN205829167U (en) | 2016-07-05 | 2016-07-05 | One-way conduction power control |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205829167U (en) |
-
2016
- 2016-07-05 CN CN201620694073.XU patent/CN205829167U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Unidirectional flux power controlling means Effective date of registration: 20181224 Granted publication date: 20161221 Pledgee: Industrial Commercial Bank of China Ltd sub district subbranch Pledgor: PUYANG LIYUAN AUTO ELECTRIC CO., LTD. Registration number: 2018990001250 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20191230 Granted publication date: 20161221 Pledgee: Industrial Commercial Bank of China Ltd sub district subbranch Pledgor: PUYANG LIYUAN AUTO ELECTRIC CO., LTD. Registration number: 2018990001250 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: One way conduction power control device Effective date of registration: 20201118 Granted publication date: 20161221 Pledgee: Taiqian County sub branch of China Post Savings Bank Co.,Ltd. Pledgor: PUYANG LIYUAN AUTO ELECTRIC APPLIANCE Co.,Ltd. Registration number: Y2020980008227 |