CN205565716U - Computer intelligence power supply circuit - Google Patents

Abstract

The utility model discloses a computer intelligence power supply circuit, including three terminal regulator IC1, three terminal regulator IC2, comparator IC3, resistance R2, potentiometre RP1, electric capacity C1 and relay K, emitting diode LED is connected to three terminal regulator IC1 input connect respectively VCC, electric capacity C5 and relay K coil, the relay K coil other end, and one -way silicon controlled rectifier VS1's the A utmost point is connected to the emitting diode LED negative pole, one -way silicon controlled rectifier VS1's K utmost point connecting resistance R7, and the resistance R7 other end is connecting resistance R8 and comparator IC3 inverting terminal respectively. The utility model discloses computer intelligence power supply circuit adopts three terminal regulator, comparator and one -way silicon controlled rectifier as the master element for the circuit has good steady voltage effect, and have short -circuit protection function, circuit structure is simple, and is with low costs, small.

Description

A kind of computer intelligence power circuit

Technical field

The utility model relates to a kind of power supply, specifically a kind of computer intelligence power circuit.

Background technology

Computer (computer) is commonly called as computer, is a kind of electronic computer device for supercomputing, can carry out numerical computations, can carry out again logical calculated, also have store-memory function.It is can to run according to program, automatic, the modernization intelligent electronic device of high speed processing mass data.Being made up of hardware system and software systems, the computer being fitted without any software is referred to as bare machine.Can be divided into supercomputer, industrial control computer, network computer, personal computer, embedded computer five class, more advanced computer has biocomputer, photonic computer, quantum computer etc..

Computer needs stable power voltage supply; spread of voltage; service life and use peace on computer are all with the biggest impact; especially in the moment of computer starting; often there is the biggest instantaneous voltage in a lot of protection circuits, can shorten the service life of computer especially greatly, and existing a lot of non-brand of computer are for cost consideration; the voltage-stabilized power supply of design is without short-circuit protection function, and security is relatively low.

Utility model content

The purpose of this utility model is to provide a kind of computer intelligence power circuit, with the problem solving to propose in above-mentioned background technology.

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

nullA kind of computer intelligence power circuit，Including three terminal regulator IC1、Three terminal regulator IC2、Comparator IC3、Resistance R2、Potentiometer RP1、Electric capacity C1 and relay K，Described three terminal regulator IC1 input connects power supply VCC respectively、Electric capacity C5 and relay K coil，Relay K coil other end connecting luminous diode LED，LED negative pole connects the A pole of one-way SCR VS1，The K pole of one-way SCR VS1 connects resistance R7，The resistance R7 other end connects resistance R8 and comparator IC3 end of oppisite phase respectively，Resistance R8 other end connecting triode VT3 base stage respectively、Electric capacity C1、Output end vo and resistance R9，The resistance R9 other end connects resistance R4 respectively、Triode VT3 emitter stage and triode VT2 emitter stage，Triode VT2 base stage connects the resistance R4 other end and triode VT1 emitter stage respectively，Triode VT1 base stage connects resistance R3 and triode VT2 colelctor electrode respectively，The resistance R3 other end connects comparator IC3 output，Triode VT1 colelctor electrode connects electric capacity C2 and relay K contact K-1 respectively，The relay K contact K-1 other end connects three terminal regulator IC1 output respectively、Three terminal regulator IC2 input and comparator IC3 power end，The electric capacity C2 other end connects the electric capacity C5 other end respectively、Resistance R2、Electric capacity C3、Three terminal regulator IC2 earth terminal and the electric capacity C1 other end，The resistance R2 other end connects comparator IC3 in-phase end respectively、Potentiometer RP1 one end and potentiometer RP1 slide plate，The potentiometer RP1 other end connects three terminal regulator IC2 output and the electric capacity C3 other end respectively，The G pole of described one-way SCR VS1 connects resistance R5 and electric capacity C4 respectively，The electric capacity C4 other end connects resistance R6 and triode VT3 colelctor electrode respectively，The resistance R6 other end connects the resistance R5 other end ground connection.

As further program of the utility model: described three terminal regulator IC1 and IC2 all uses 7806.

As the utility model further scheme: described comparator IC3 uses LM324.

Compared with prior art; the beneficial effects of the utility model are: the utility model computer intelligence power circuit; use three terminal regulator, comparator and one-way SCR as master element; circuit is made to have good pressure stabilization function; and with short-circuit protection function; circuit structure is simple, and low cost, volume is little.

Accompanying drawing explanation

Fig. 1 is the circuit diagram of computer intelligence power circuit.

Detailed description of the invention

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the utility model rather than whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of the utility model protection.

nullRefer to Fig. 1，In the utility model embodiment，A kind of computer intelligence power circuit，Including three terminal regulator IC1、Three terminal regulator IC2、Comparator IC3、Resistance R2、Potentiometer RP1、Electric capacity C1 and relay K，Described three terminal regulator IC1 input connects power supply VCC respectively、Electric capacity C5 and relay K coil，Relay K coil other end connecting luminous diode LED，LED negative pole connects the A pole of one-way SCR VS1，The K pole of one-way SCR VS1 connects resistance R7，The resistance R7 other end connects resistance R8 and comparator IC3 end of oppisite phase respectively，Resistance R8 other end connecting triode VT3 base stage respectively、Electric capacity C1、Output end vo and resistance R9，The resistance R9 other end connects resistance R4 respectively、Triode VT3 emitter stage and triode VT2 emitter stage，Triode VT2 base stage connects the resistance R4 other end and triode VT1 emitter stage respectively，Triode VT1 base stage connects resistance R3 and triode VT2 colelctor electrode respectively，The resistance R3 other end connects comparator IC3 output，Triode VT1 colelctor electrode connects electric capacity C2 and relay K contact K-1 respectively，The relay K contact K-1 other end connects three terminal regulator IC1 output respectively、Three terminal regulator IC2 input and comparator IC3 power end，The electric capacity C2 other end connects the electric capacity C5 other end respectively、Resistance R2、Electric capacity C3、Three terminal regulator IC2 earth terminal and the electric capacity C1 other end，The resistance R2 other end connects comparator IC3 in-phase end respectively、Potentiometer RP1 one end and potentiometer RP1 slide plate，The potentiometer RP1 other end connects three terminal regulator IC2 output and the electric capacity C3 other end respectively，The G pole of described one-way SCR VS1 connects resistance R5 and electric capacity C4 respectively，The electric capacity C4 other end connects resistance R6 and triode VT3 colelctor electrode respectively，The resistance R6 other end connects the resistance R5 other end ground connection；Described three terminal regulator IC1 and IC2 all uses 7806；Described comparator IC3 uses LM324.

nullOperation principle of the present utility model is: refer to Fig. 1，Power supply VCC mono-tunnel is as the operating voltage of relay K，Another road be supplied to after IC1 tail tooth after polar circuit，The voltage of IC1 output is again after IC2 voltage stabilizing，It is added to IC3 in-phase end after resistance R2 dividing potential drop again by potentiometer RP1，Reference voltage as IC3，IC3 connects into comparator type in circuit，Relatively voltage takes from the voltage of IC2 output，This voltage is added to IC3 end of oppisite phase through resistance R8，So，Compared with the half of reference voltage just output voltage final with circuit，From the output of comparator IC3 output as the control voltage adjusting pipe VT1，After being filtered by electric capacity C1, the most available accurate burning voltage exports from output end vo,Adjust the resistance value of RP1，Output end vo voltage can be made to change.

Overload protecting circuit is mainly made up of product body pipe VT2, R4 etc.; when exporting electric current and being excessive; between being connected on adjustment due to R4 pipe VT 1 export and load; therefore the voltage at R4 two ends will raise; and then make VT2 positively biased turn on; the base current of VT1 pipe is split, and makes output voltage reduce rapidly, has reached the purpose of overload protection.

Short-circuit protection is made up of VS1, VT3, relay K etc.; when power output end Vo short circuit; the voltage at R9 resistance two ends will raise; therefore VT3 turns on; and then trigger VS1 conducting by C4, and make relay K coil obtain electric adhesive, its normally-closed contact K-1 disconnects; make IC1 output load disconnection with it, thus reach the purpose of short-circuit protection.Once short-circuit protection circuit action, after unshorting point recloses power supply, circuit can work again.

It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize the utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in the utility model.Should not be considered as limiting involved claim by any reference in claim.

In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of specification is only for clarity sake, specification should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.

Claims (3)

1. null1. a computer intelligence power circuit，Including three terminal regulator IC1、Three terminal regulator IC2、Comparator IC3、Resistance R2、Potentiometer RP1、Electric capacity C1 and relay K，It is characterized in that，Described three terminal regulator IC1 input connects power supply VCC respectively、Electric capacity C5 and relay K coil，Relay K coil other end connecting luminous diode LED，LED negative pole connects the A pole of one-way SCR VS1，The K pole of one-way SCR VS1 connects resistance R7，The resistance R7 other end connects resistance R8 and comparator IC3 end of oppisite phase respectively，Resistance R8 other end connecting triode VT3 base stage respectively、Electric capacity C1、Output end vo and resistance R9，The resistance R9 other end connects resistance R4 respectively、Triode VT3 emitter stage and triode VT2 emitter stage，Triode VT2 base stage connects the resistance R4 other end and triode VT1 emitter stage respectively，Triode VT1 base stage connects resistance R3 and triode VT2 colelctor electrode respectively，The resistance R3 other end connects comparator IC3 output，Triode VT1 colelctor electrode connects electric capacity C2 and relay K contact K-1 respectively，The relay K contact K-1 other end connects three terminal regulator IC1 output respectively、Three terminal regulator IC2 input and comparator IC3 power end，The electric capacity C2 other end connects the electric capacity C5 other end respectively、Resistance R2、Electric capacity C3、Three terminal regulator IC2 earth terminal and the electric capacity C1 other end，The resistance R2 other end connects comparator IC3 in-phase end respectively、Potentiometer RP1 one end and potentiometer RP1 slide plate，The potentiometer RP1 other end connects three terminal regulator IC2 output and the electric capacity C3 other end respectively，The G pole of described one-way SCR VS1 connects resistance R5 and electric capacity C4 respectively，The electric capacity C4 other end connects resistance R6 and triode VT3 colelctor electrode respectively，The resistance R6 other end connects the resistance R5 other end ground connection.
2. Computer intelligence power circuit the most according to claim 1, it is characterised in that described three terminal regulator IC1 and IC2 all uses 7806.
3. Computer intelligence power circuit the most according to claim 1, it is characterised in that described comparator IC3 uses LM324.