CN206835026U

CN206835026U - A kind of Novel electrodeless alignment circuit

Info

Publication number: CN206835026U
Application number: CN201720537008.0U
Authority: CN
Inventors: 温良树
Original assignee: Chongqing Science And Technology Co Ltd
Current assignee: Chongqing Science And Technology Co Ltd
Priority date: 2017-05-16
Filing date: 2017-05-16
Publication date: 2018-01-02
Anticipated expiration: 2027-05-16

Abstract

A kind of Novel electrodeless alignment circuit, half controllable controllable silicon is replaced using complete controllable NMOS tube, applied to realizing chopper-type stepless time adjustment on small-power stream motor, circuit includes monophase machine, full-bridge circuit, NMOS effect pipes, push-pull type isolation drive device and accessory power supply, wherein, the monophase machine connection power supply and full-bridge circuit, the full-bridge circuit connects NMOS effect pipes, realize the Two-way of unidirectional NMOS effects pipe conducting, the accessory power supply connects the push-pull type isolation drive device and reconnects NMOS FETs, it ensure that NMOS FETs remain to maintain driving to control oneself after saturation and conducting, the circuit is successfully realized easy stepless time adjustment on little power single phase motor, the utility model is novel, it is ingenious, and with reliable, simply, it is cheap, the advantages that practical.

Description

A kind of Novel electrodeless alignment circuit

Technical field

The present invention relates to semiconductor applications, especially a kind of Novel electrodeless alignment circuit.

Background technology

Existing stepless time adjustment circuit engineering usually using two controllable silicon controlled motors rotating, although circuit is simple, But controllable silicon is half controllable, so its conducting can only be controlled, it is impossible to control its shut-off, just can not drive electricity in controllable silicon High speed copped wave is carried out to exchange cycle in road, it is difficult to realize the stepless time adjustment to monophase machine.

Utility model content

For above-mentioned the deficiencies in the prior art, the utility model provides a kind of Novel electrodeless alignment circuit, can be in small work( Chopper-type stepless time adjustment is realized on rate stream motor.

The technical solution of the utility model is：A kind of Novel electrodeless alignment circuit, half is replaced using complete controllable NMOS tube Controllable controllable silicon, applied to chopper-type stepless time adjustment is realized on small-power stream motor, circuit includes monophase machine, full-bridge electricity Road, NMOS effect pipes, push-pull type isolation drive device, accessory power supply, wherein, the monophase machine connection power supply and full-bridge electricity Road, the full-bridge circuit connect NMOS effect pipes, realize the Two-way of unidirectional NMOS effects pipe conducting, and the accessory power supply connects Connect the push-pull type isolation drive device and reconnect NMOS FETs, ensure that NMOS FETs after saturation and conducting still Driving can be maintained to control oneself.

The utility model circuit uses the rotating of two sets of identical circuit controlled motors.

The auxiliary driving power ensure that NMOS FETs controlling oneself after saturation conduction from the power taking of motor front end.

The push-pull type isolation drive device is by working in two photoelectrical coupler PC817D and single-chip microcomputer under push pull mode PX.Y is formed, it is ensured that implements the chopping regulating speed of high speed to NMOS FETs.

From such scheme as can be seen that monophase machine for power within 100W, with complete controllable unidirectional NMOS tube Full-bridge is coordinated to replace bidirectional triode thyristor, entirely controllable to exchange cycle, undoubtedly a kind of excellent selection, simply the latter's driving is electric Road is increasingly complex, and the utility model is by alternating current generator front end high power taking, solving dimension of powering after effect pipe saturation conduction Hold problem, easy stepless time adjustment be successfully realized on little power single phase motor, this programme is novel, ingenious, and with it is reliable, Simply, the advantages that cheap, practical.

Brief description of the drawings

Fig. 1 is circuit system theory of constitution figure

Fig. 2 is actual hardware electric operation control circuit figure

Embodiment

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

As depicted in figs. 1 and 2, a kind of Novel electrodeless alignment circuit, using complete controllable NMOS tube replace half it is controllable can Silicon is controlled, applied to chopper-type stepless time adjustment is realized on small-power stream motor, circuit includes monophase machine, full-bridge circuit, NMOS effects Ying Guan, push-pull type isolation drive device, accessory power supply, wherein, the monophase machine connection power supply and full-bridge circuit are described complete Bridge circuit connects NMOS effect pipes, realizes the Two-way of unidirectional NMOS effects pipe conducting, is pushed away described in the accessory power supply connection Pull-up isolation drive device reconnects NMOS FETs, ensure that NMOS FETs remain to maintain to drive after saturation and conducting Dynamic to control oneself, the push-pull type isolation drive device is by working in two photoelectrical coupler PC817D and single-chip microcomputer under push pull mode PX.Y is formed, it is ensured that NMOS FETs implement the chopping regulating speed under high speed.

After NMOS FET saturation conductions, alternating voltage all will be dropped on monophase machine, on NMOS FETs Pressure drop only has 30mV, is much not enough to maintain the self-holding desired gate source voltage not less than 4V of conducting of its NMOS FET, So resistance R1, R2 in Fig. 2, diode D1, D2 take 220V civil powers from motor front end, pass through D3 voltage-regulator diode D4 rectification energy storage On filter capacitor C1, it is ensured that C1 has more than 16V lasting driving voltage all the time.

Two PC817D photoelectrical couplers U1, U2 form the driving of high speed push-pull type, when the output of single-chip microcomputer PX.Y pins drags down When optocoupler U1 conducting, and be inputted end clamper, U2 because of light emitting diode D1 current potentials lifting optocoupler U2 and light emitting diode D5 only It can end in pairs, the driving voltage stored on electric capacity C1 is added to NMOS FETs by 1K current-limiting resistances through conducting optocoupler U1 Control gate, promote NMOS FETs transient switching and maintain control oneself；And when single-chip microcomputer mouth line PX.Y outputs are high level, Optocoupler U1 reversely ends, and driving current is spontaneous to flow through U2 control terminals, then is turned on by reflective diode D5 to ground, U1 cut-offs U2, Driving electric charge quick release on NMOS FETs, NMOS FETs are turned off rapidly, then recommended with this mutual exclusion by U2 Isolation drive be successfully realized high speed copped wave to civil power cycle so as to successfully realize simple stepless time adjustment to monophase machine.

Claims

A kind of 1. Novel electrodeless alignment circuit, it is characterised in that：Including monophase machine, full-bridge circuit, NMOS effect pipes, push-pull type Isolation drive device and accessory power supply, the monophase machine connection power supply and full-bridge circuit, the full-bridge circuit connection NMOS effects Ying Guan, realizes the Two-way of unidirectional NMOS effects pipe conducting, and the accessory power supply connects the push-pull type isolation drive device NMOS FETs are reconnected, ensure that NMOS FETs remain to maintain driving to control oneself after saturation and conducting.
A kind of 2. Novel electrodeless alignment circuit according to claim 1, it is characterised in that：Auxiliary driving power is before motor Hold power taking.
A kind of 3. Novel electrodeless alignment circuit according to claim 1, it is characterised in that：Push-pull type isolation drive device by Two photoelectrical coupler PC817D and single-chip microcomputer PX.Y under push pull mode are worked in form.