CN205594363U

CN205594363U - Voltage sample controller circuit

Info

Publication number: CN205594363U
Application number: CN201620218641.9U
Authority: CN
Inventors: 吴辉进
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-21
Filing date: 2016-03-21
Publication date: 2016-09-21
Anticipated expiration: 2026-03-21

Abstract

The utility model discloses a voltage sample controller circuit, including NAND gate F1, NAND gate F2, not gate F3, not gate F4, resistance R1, potentiometre RP1 and triode VT1, input of NAND gate F1 connects respectively that to wait to sample power vi and diode D1 anodal, potentiometre RP1 one end is connected to diode D1 negative pole, another input of NAND gate F1 is connected to potentiometre RP1 gleitbretter, potentiometre RP1 other end ground connection, input of NAND gate F2 is connected to NAND gate F1 output, electric capacity C1 and not gate F4 output are connected respectively to another input of NAND gate F2, not gate F3 output and resistance R2 are connected respectively to not gate F4 input. The utility model relates to a voltage sample controller circuit adopts the gate circuit as the voltage sample observation circuit, and circuit structure is very simple, and can effectively accomplish the flash of light and report to the police and supply interruption, the security height, with low costs, application scope is very wide.

Description

A kind of voltage sample controller circuitry

Technical field

This utility model relates to a kind of control circuit, specifically a kind of voltage sample controller circuitry.

Background technology

Along with popularizing of present electrical equipment, bring revolutionary change to industrial and agricultural production, Defence business, science and technology, add The fast development of society, people have stepped into Electrification Age, also make the quality of life of people be greatly improved, also Increasingly it be unable to do without these electric equipments.Along with the development of science and technology, the precision of electric equipment also gradually steps up, and there occurs and overturns the heavens Cover the change on ground, but how to protect the most interfered by outside of these electric equipments, become current development in science and technology to pay close attention to Subject matter.The electrical network of China is popularized at present, and it is many convenient that huge network system gives us.But it is as accessing The user of electrical network increases, and the variation of consumer electronics, also result in the instability of line voltage, voltage fluctuated, Also having become to damage the principal element of electric equipment, existing a lot of overvoltage protections use the controllers such as single-chip microcomputer to be controlled, and become This is the highest.

Utility model content

The purpose of this utility model is to provide the voltage sample controller circuitry of a kind of low cost, to solve above-mentioned background technology The problem of middle proposition.

For achieving the above object, the following technical scheme of this utility model offer:

A kind of voltage sample controller circuitry, including NAND gate F1, NAND gate F2, not gate F3, not gate F4, resistance R1, Potentiometer RP1 and audion VT1, mono-input of described NAND gate F1 connects power supply Vi to be sampled and diode D1 respectively Positive pole, diode D1 negative pole connects potentiometer RP1 one end, and potentiometer RP1 slide plate connects another input of NAND gate F1, Potentiometer RP1 other end ground connection, NAND gate F1 outfan connect mono-input of NAND gate F2, NAND gate F2 another Input connects electric capacity C1 and not gate F4 outfan respectively, and not gate F4 input connects not gate F3 outfan and resistance respectively R2, not gate F3 input connects resistance R1, and the resistance R1 other end connects the resistance R2 other end and the electric capacity C1 other end respectively, NAND gate F2 outfan connects resistance R3, the resistance R3 other end connecting triode VT1 base stage and LED respectively Positive pole, LED negative pole connects relay J coil ground connection, relay J coil other end connecting triode VT1 Emitter stage, audion VT1 colelctor electrode connects power supply VCC.

As this utility model further scheme: described power supply VCC voltage is 3V.

Compared with prior art, the beneficial effects of the utility model are: this utility model voltage sample controller circuitry uses door Circuit is as voltage sample observation circuit, and circuit structure is very simple, can effectively accomplish flashing light alarm and cut off the electricity supply, safety Property high, low cost, the scope of application is the widest.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of voltage sample controller circuitry.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out clearly Chu, it is fully described by, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The every other embodiment obtained, broadly falls into the scope of this utility model protection.

Referring to Fig. 1, in this utility model embodiment, a kind of voltage sample controller circuitry, including NAND gate F1 with non- Door F2, not gate F3, not gate F4, resistance R1, potentiometer RP1 and audion VT1, mono-input of described NAND gate F1 Connecting power supply Vi to be sampled and diode D1 positive pole respectively, diode D1 negative pole connects potentiometer RP1 one end, potentiometer RP1 slide plate connect NAND gate F1 another input, potentiometer RP1 other end ground connection, NAND gate F1 outfan connect with Mono-input of not gate F2, another input of NAND gate F2 connects electric capacity C1 and not gate F4 outfan, not gate F4 respectively Input connects not gate F3 outfan and resistance R2 respectively, and not gate F3 input connects resistance R1, and the resistance R1 other end divides Not Lian Jie the resistance R2 other end and the electric capacity C1 other end, NAND gate F2 outfan connect resistance R3, the resistance R3 other end divides Other connecting triode VT1 base stage and LED positive pole, LED negative pole connects relay J coil also Ground connection, relay J coil other end connecting triode VT1 emitter stage, audion VT1 colelctor electrode connects power supply VCC；Institute Stating power supply VCC voltage is 3V.

Operation principle of the present utility model is: refer to Fig. 1, and power supply Vi voltage to be sampled exceedes setting value and (passes through potentiometer RP1 sets) time, F1 output low level, F2 exports high level, lights LED, and by audion VT1 After amplification, driving relay J action, the contact of relay J controls the load circuit (not shown in figure 1) of power supply to be sampled, When power supply Vi to be sampled drops to setting value, an input of F1 becomes low-voltage, so F1 exports high level, Then, the pulse that the agitator being made up of F3, F4 produces, make light-emitting diode flash by F2, frequency is agitator frequency Rate, the pulse of vibration is not enough to provide the base stage conducting electric current of audion VT1, and audion VT1 stops conducting, relay J Controller contact makes load circuit work on.

It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, Er Qie In the case of spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms. Therefore, no matter from the point of view of which point, all should regard embodiment as exemplary, and be nonrestrictive, this practicality is new The scope of type is limited by claims rather than described above, it is intended that by the containing of equivalency in claim that fall All changes in justice and scope are included in this utility model.Should not be considered as any reference in claim limiting Involved claim.

Although moreover, it will be appreciated that this specification is been described by according to embodiment, but the most each embodiment only comprises One independent technical scheme, this narrating mode of description is only the most for clarity sake, and those skilled in the art should be by Description is as an entirety, and the technical scheme in each embodiment can also be through appropriately combined, and forming those skilled in the art can With other embodiments understood.

Claims

1. a voltage sample controller circuitry, including NAND gate F1, NAND gate F2, not gate F3, not gate F4, resistance R1, Potentiometer RP1 and audion VT1, it is characterised in that mono-input of described NAND gate F1 connects power supply to be sampled respectively Vi and diode D1 positive pole, diode D1 negative pole connects potentiometer RP1 one end, and potentiometer RP1 slide plate connects NAND gate Another input of F1, potentiometer RP1 other end ground connection, NAND gate F1 outfan connects mono-input of NAND gate F2, Another input of NAND gate F2 connects electric capacity C1 and not gate F4 outfan respectively, and not gate F4 input connects not gate respectively F3 outfan and resistance R2, not gate F3 input connects resistance R1, and the resistance R1 other end connects the resistance R2 other end respectively With the electric capacity C1 other end, NAND gate F2 outfan connects resistance R3, resistance R3 other end connecting triode VT1 base respectively Pole and LED positive pole, LED negative pole connects relay J coil ground connection, relay J coil Other end connecting triode VT1 emitter stage, audion VT1 colelctor electrode connects power supply VCC.

A kind of voltage sample controller circuitry the most according to claim 1, it is characterised in that described power supply VCC voltage For 3V.