CN205142037U - Household power consumption safety protection automatic control circuit - Google Patents
Household power consumption safety protection automatic control circuit Download PDFInfo
- Publication number
- CN205142037U CN205142037U CN201520886564.XU CN201520886564U CN205142037U CN 205142037 U CN205142037 U CN 205142037U CN 201520886564 U CN201520886564 U CN 201520886564U CN 205142037 U CN205142037 U CN 205142037U
- Authority
- CN
- China
- Prior art keywords
- diode
- electric capacity
- triode
- transformer
- winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a household power consumption safety protection automatic control circuit, including diode D1, triode V1, transformer W and electric capacity C5, diode D1's positive pole is connected transient voltage and is restrained diode DW and 220V alternating current, diode D1's negative pole connecting resistance R2, resistance R5, electric capacity C1, electric capacity C2 and transformer W's winding N1, electric capacity C1's other end connecting resistance R1, electric capacity C4, diode D3's positive pole, triode V2's projecting pole, transient voltage suppression diode DW's the other end and the other end of 220V alternating current. The utility model discloses household power consumption safety protection automatic control circuit simple structure, components and parts are few, can provide effectual protection to overload, the short circuit condition that the power consumption in -process appears to can also reach permanent load mains voltage's purpose to restraining the excessive pressure, overflowing the phenomenon, consequently have with low costs, the function is various and the advantage of stable performance.
Description
Technical field
The utility model relates to a kind of Electrical Safety protection circuit, specifically a kind of household electricity security protection automatic control circuit.
Background technology
Along with the development of power industry, increasing household electrical appliance enter ordinary people family, especially electronic industry development now and rapid, from lighting to refrigerator and air conditioner, arrive the electric motor car constantly promoted in recent years again, electromagnetic oven, can say that the stability of domestic electric network is directly connected to daily life, and often there is electromagnetic interference when being transferred to domestic electric network in power circuit, the phenomenons such as power network fluctuation, electricity consumption negative electricity is caused to occur overvoltage, overcurrent condition, easily cause burning by electric loading, the most complex structure of traditional over-voltage over-current protection circuit, cost of manufacture is high, and be subject to electromagnetic interference, hinder it to promote the use of.
Utility model content
The purpose of this utility model is to provide a kind of household electricity security protection automatic control circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of household electricity security protection automatic control circuit, comprise diode D1, triode V1, transformer W and electric capacity C5, the anode of described diode D1 connects transient voltage suppressor diode DW and 220V alternating current, the negative electrode contact resistance R2 of diode D1, resistance R5, electric capacity C1, the winding N1 of electric capacity C2 and transformer W, the other end contact resistance R1 of electric capacity C1, electric capacity C4, the anode of diode D3, the emitter of triode V2, the other end of transient voltage suppressor diode DW and the other end of 220V alternating current, the other end of resistance R2 connects the anode of diode D4, the other end of the winding N1 of transformer W, the base stage of triode V1 and the collector electrode of triode V1, the other end of the emitter contact resistance R1 of triode V1 and resistance R3, the other end of resistance R3 connects the anode of diode D2 and the base stage of triode V2, the collector electrode of triode V2 connects electric capacity C3, the other end contact resistance R4 of electric capacity C3, the winding N2 of other end connection transformer W of resistance R4 and the negative electrode of diode D3, the other end of the winding N2 of transformer W connects the other end of electric capacity C4 and the negative electrode of diode D2, one end of the winding N3 of transformer W connects electric capacity C5 and load A, the other end of the winding N3 of transformer W connects the other end of electric capacity C5 and the other end of load A.
As preferred version of the present utility model: the model of described transient voltage suppressor diode DW is SMAJ9.0A.
Compared with prior art; the beneficial effects of the utility model are: the utility model household electricity security protection automatic control electric line structure is simple, components and parts are few; effective protection can be provided to by the overload occurred in electric process, short-circuit conditions; and can also to suppression overvoltage, over-current phenomenon avoidance; reach the object of steady load supply voltage, therefore have that cost is low, the advantage of diverse in function and stable performance.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of household electricity security protection automatic control circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, a kind of household electricity security protection automatic control circuit, comprise diode D1, triode V1, transformer W and electric capacity C5, the anode of described diode D1 connects transient voltage suppressor diode DW and 220V alternating current, the negative electrode contact resistance R2 of diode D1, resistance R5, electric capacity C1, the winding N1 of electric capacity C2 and transformer W, the other end contact resistance R1 of electric capacity C1, electric capacity C4, the anode of diode D3, the emitter of triode V2, the other end of transient voltage suppressor diode DW and the other end of 220V alternating current, the other end of resistance R2 connects the anode of diode D4, the other end of the winding N1 of transformer W, the base stage of triode V1 and the collector electrode of triode V1, the other end of the emitter contact resistance R1 of triode V1 and resistance R3, the other end of resistance R3 connects the anode of diode D2 and the base stage of triode V2, the collector electrode of triode V2 connects electric capacity C3, the other end contact resistance R4 of electric capacity C3, the winding N2 of other end connection transformer W of resistance R4 and the negative electrode of diode D3, the other end of the winding N2 of transformer W connects the other end of electric capacity C4 and the negative electrode of diode D2, one end of the winding N3 of transformer W connects electric capacity C5 and load A, the other end of the winding N3 of transformer W connects the other end of electric capacity C5 and the other end of load A.
The model of transient voltage suppressor diode DW is SMAJ9.0A.
Operation principle of the present utility model is: after switching on power, C1 has the direct voltage of about 300V, electric current is provided to the base stage of V1 by R2, the emitter of V1 has R1 current sense resistor R1, V1 base stage obtain electric after, collector current can be produced through the winding N1 of W, and simultaneously on the winding N2, winding N3 of W, produce induced voltage, the coil that the number of turns of these two time class F insulations is identical, wherein W winding N3 export by after D7 rectification, C5 filtering by USB seat powering load; Wherein W winding N2 is by D2, V2 composition sampling comparison circuit after D6 rectification, C2 filtering, detects output voltage height; Wherein W winding N2, C3, R4 also form the regenerative circuit of V1 triode, allow V1 be operated in the higher-order of oscillation, power ceaselessly to W winding N1 switch.When load lighten or supply voltage to uprise etc. any reason cause output voltage to raise time, W winding N2, D2 sampling rate comparatively causes V2 conducting, and V1 base current reduces, and collector current reduces, and load capacity diminishes, thus causes output voltage to reduce; After output voltage reduces, can end again after V2 sampling, the load capacity grow of V1, output voltage can raise again; Play automatic voltage regulation effect like this.When load overload or short circuit, the collector current of V1 increases, and the emitter resistance R1 of V1 can produce higher pressure drop, the high voltage that this overload or short circuit produce can allow V2 saturation conduction through R3, thus allow V1 cut-off stop output preventing overload from damaging, transient voltage suppressor diode DW can also effectively suppress civil power peak voltage, reduces peak voltage to the infringement of circuit.
Claims (2)
1. a household electricity security protection automatic control circuit, comprise diode D1, triode V1, transformer W and electric capacity C5, it is characterized in that, the anode of described diode D1 connects transient voltage suppressor diode DW and 220V alternating current, the negative electrode contact resistance R2 of diode D1, resistance R5, electric capacity C1, the winding N1 of electric capacity C2 and transformer W, the other end contact resistance R1 of electric capacity C1, electric capacity C4, the anode of diode D3, the emitter of triode V2, the other end of transient voltage suppressor diode DW and the other end of 220V alternating current, the other end of resistance R2 connects the anode of diode D4, the other end of the winding N1 of transformer W, the base stage of triode V1 and the collector electrode of triode V1, the other end of the emitter contact resistance R1 of triode V1 and resistance R3, the other end of resistance R3 connects the anode of diode D2 and the base stage of triode V2, the collector electrode of triode V2 connects electric capacity C3, the other end contact resistance R4 of electric capacity C3, the winding N2 of other end connection transformer W of resistance R4 and the negative electrode of diode D3, the other end of the winding N2 of transformer W connects the other end of electric capacity C4 and the negative electrode of diode D2, one end of the winding N3 of transformer W connects electric capacity C5 and load A, the other end of the winding N3 of transformer W connects the other end of electric capacity C5 and the other end of load A.
2. according to a kind of household electricity security protection automatic control circuit according to claim 1, it is characterized in that, the model of described transient voltage suppressor diode DW is SMAJ9.0A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886564.XU CN205142037U (en) | 2015-11-09 | 2015-11-09 | Household power consumption safety protection automatic control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520886564.XU CN205142037U (en) | 2015-11-09 | 2015-11-09 | Household power consumption safety protection automatic control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205142037U true CN205142037U (en) | 2016-04-06 |
Family
ID=55627789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520886564.XU Expired - Fee Related CN205142037U (en) | 2015-11-09 | 2015-11-09 | Household power consumption safety protection automatic control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205142037U (en) |
-
2015
- 2015-11-09 CN CN201520886564.XU patent/CN205142037U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204243716U (en) | Electric device fault secure circuit | |
| CN204652259U (en) | A kind of switching power circuit | |
| CN202351726U (en) | Resistance and capacitance step-down control circuit | |
| CN102445911B (en) | The simple energy-saving control switch of circuit | |
| CN204205548U (en) | Circuit overcurrent protection | |
| CN104779577A (en) | Over-current protection circuit | |
| CN205142037U (en) | Household power consumption safety protection automatic control circuit | |
| CN104216449A (en) | Controllable alternating-current stabilized-voltage power supply | |
| CN204012645U (en) | Domestic overvoltage protection switch | |
| CN204168130U (en) | A kind of interchange inputs soft-start circuit | |
| CN204191002U (en) | Can the LED drive circuit of anti-2KV surge voltage | |
| CN201887447U (en) | Single-phase overvoltage protector | |
| CN204652211U (en) | Switching Power Supply current foldback circuit | |
| CN206237300U (en) | Switching power circuit | |
| CN204668913U (en) | A kind of voltage protection circuit | |
| CN205566256U (en) | Alternating load isolation control circuit | |
| CN204668644U (en) | A kind of safety socket circuit | |
| CN204859016U (en) | AC -DC converting circuit | |
| CN210380653U (en) | High-reliability surge absorption circuit | |
| CN201766341U (en) | Overvoltage protection air switch | |
| CN203151072U (en) | Intelligent molded case circuit breaker undervoltage tripping control module | |
| CN203573241U (en) | Voltage-stabilizing adjustable power circuit of computer | |
| CN202917748U (en) | Intelligent energy-saving safety socket | |
| CN208369488U (en) | A kind of intelligent electric power receptacle controller | |
| CN211377916U (en) | Input voltage widening circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160406 Termination date: 20161109 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |