CN2242475Y - AC manostat with electric motor driven tap switch - Google Patents
AC manostat with electric motor driven tap switch Download PDFInfo
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- CN2242475Y CN2242475Y CN 95200325 CN95200325U CN2242475Y CN 2242475 Y CN2242475 Y CN 2242475Y CN 95200325 CN95200325 CN 95200325 CN 95200325 U CN95200325 U CN 95200325U CN 2242475 Y CN2242475 Y CN 2242475Y
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Abstract
The utility model relates to an AC manostat with electric motor driven tap switch, in particular to a voltage-stabilizer for the power source of domestic appliances. The utility model is composed of a rectification circuit, a reference circuit, a sample circuit, a comparator, a phase-sensitive converting circuit, a reverse-phase relay line, a reversible electric motor and a voltage regulator. When the deviation between a reference voltage and a sampling voltage deviates from a specified range, the comparator outputs adjusted signals, and the reversible electric motor operates, the comparator can add a set of reverse-phase relay type signal voltage whose polarity is opposite to the deviation through the reverse-phase relay line, therefore, the deviation can be counteracted, and an electronic switch which is conducted previous can be forced to cut off. The utility model has the advantages of stable output voltage and approximate zero oscillation, etc.
Description
The utility model relates to a kind of AC voltage regulator of electric-motor drive tap, and it is particularly suitable as the power regulator device of household electrical appliance.Which comprises at least following several sections: rectification circuit, reference circuit, sample circuit, comparer, phase sensitivity change-over circuit, reversible electric machine and pressure regulator.
The circuit diagram of a kind of AC voltage regulator of the prior art and block scheme respectively as shown in Figures 1 and 2, it is by rectification circuit 1, reference circuit 2, sample circuit 3, comparer 4, phase sensitivity change-over circuit 5, compositions such as reversible electric machine 6 and pressure regulator 7.Line voltage after the rectification becomes the constant voltage of a certain setting value behind reference circuit 2, but then the sampling voltage of ratio reaction grid voltage change after sample circuit 3 dividing potential drops, said sampling voltage through comparer 4 with compare for the reference voltage of setting value, when the deviation after the comparison departs from specialized range, an electronic switch conducting in the phase sensitivity change-over circuit, reversible electric machine 6 rotates, pressure regulator 7 work, reach specialized range until deviation, because reversible electric machine 6 is in regulating rotation process, because reasons such as rotator inertia can produce over control, cause the deviation alternation, make another electronic switch conducting in the phase sensitivity change-over circuit 5, reversible electric machine 6 revolutions, go round and begin again, the output voltage of this AC voltage regulator has just produced the periodic oscillation phenomenon, can't tend towards stability.
The purpose of this utility model is to overcome weak point of the prior art, and a kind of vibration that weakens is provided, and strengthens the AC voltage regulator of the electric-motor drive tap of pressure regulation stability.
The purpose of this utility model realizes by following approach.
The AC voltage regulator of electric-motor drive tap, include rectification circuit, reference circuit, sample circuit, comparer, the phase sensitivity change-over circuit, reversible electric machine and pressure regulator, reference circuit is connected with an input end of comparer respectively with sample circuit, the output terminal of comparer is connected with the reversible electric machine that drives the pressure regulator rotation by the phase sensitivity change-over circuit, when the deviate of sampling voltage and reference voltage departs from specialized range, the comparer output regulation signal, the electronic switch conducting, just realizing reversible electric machine by the phase sensitivity change-over circuit, counter-rotating, this AC voltage regulator also has an anti-phase relay circuit that is plugged between rectification circuit and the comparer, said anti-phase relay circuit is made up of a positive relay circuit and a negative relay circuit, the positive relay circuit is by positive supply A, one group of contact of adjustable resistor A and voltage relay B is composed in series, its output terminal is the normally opened contact in one group of contact of said voltage relay B, the negative relay circuit is composed in series at one group of contact of A by negative power supply adjustable resistor B and voltage relay, its output terminal is the normally opened contact in one group of contact of said voltage relay A, voltage relay A and voltage relay B are connected with in two input ends of reversible electric machine one of them respectively by the normally opened contact in another group contact separately, said phase sensitivity change-over circuit is made up of with the two-circuit form normal phase circuits and negative circuit, normal phase circuits is by positive supply B, voltage relay A, compositions such as filter capacitor A and electronic switch A, be plugged between positive supply B and the electronic switch after voltage relay A and the filter capacitor A parallel connection, the negative circuit is by negative power supply B voltage relay B, compositions such as filter capacitor B and electronic switch B, be plugged between negative power supply B and the electronic switch B after voltage relay B and the filter capacitor B parallel connection, when the comparer output regulation signal, triggered two normally opened contacts in the voltage relay of connecting simultaneously, one of them causes the reversible electric machine running, another then by anti-phase relay circuit to comparer superpose one group with the opposite polarity anti-phase relay signal voltage of said deviation to offset said deviation, force the electronic switch of former conducting to end.
If deviation is not offset in the output of pulse for the first time, anti-phase relay circuit can be exported the second, the three pulse signal up to deviation scope up to specification.Like this, to eliminate the over control of reversible electric machine.
The purpose of this utility model can also reach by following measure.
Said positive supply A and negative power supply A are made up of a kind of bipolarity single-phase full-wave rectifer circuit, it is made up of centre tapped rectifier transformer and four diodes a secondary winding, said positive supply B and negative power supply B are made up of a kind of bipolarity single-phase half-wave rectifier circuit, and it is made up of centre tapped rectifier transformer and two diodes a secondary winding.
Said anti-phase relay signal voltage preferably equates with deviation A, and said deviation A is sampling voltage and the reference voltage maximum deviation after relatively.
All AC voltage regulator all have the scope dictates of a maximum voltage and minimum voltage for the input voltage of its input end, this maximum voltage or minimum voltage are reflected to sample circuit, the just maximum voltage of sample circuit or minimum voltage, the two respectively with reference voltage relatively the back formed two deviations in, that bigger deviation is said deviation A.
Size for anti-phase relay signal voltage is set, for the deviation after the comparison, can be very big, also can be very little, during deviation after anti-phase relay signal voltage is greater than comparison, because a pulse signal just can be offset deviation, forces electronic switch to end, and is substantially zero vibration so be reflected on the AC voltage regulator output end voltage; During deviation after anti-phase relay signal voltage is less than comparison, then need a plurality of pulse signals just can offset deviation, force electronic switch to end, so the time, the AC voltage regulator output end voltage then shows as damped oscillation, and is gradually stable.
Because said voltage relay has the relay chain function, so during the deviation after pulse signal voltage is greater than comparison, can't cause the vibration of two voltage relay break-makes.
Said comparer is an a kind of pair of definite value comparer, said pair of definite value comparer is made up of a NPN triode and a PNP triode of also being simultaneously electronic switch, after the corresponding connection of said two transistor emitters, be connected with reference circuit 3 output terminals again, after the corresponding connection of base stage, be connected with sample circuit 4 output terminals again, when sampling voltage greater than reference voltage, and this deviate is during greater than the pressure drop of NPN triode emitter junction, the conducting of NPN triode, when sampling voltage less than reference voltage, and this deviate is during less than the pressure drop of PNP triode emitter junction, the conducting of PNP triode.
So-called pair of definite value comparer promptly shows as at this: definite value is the pressure drop of NPN triode emitter junction on it, is generally 0.7V; Its down definite value be the pressure drop of PNP triode emitter junction, be generally 0.3 volt, when the pressure drop after the comparison between 0.7V-0.3V, two triodes all are in cut-off state, reversible electric machine is not worked.
In sum, the utility model has following advantage compared to existing technology: become the periodic oscillation of AC voltage regulator output voltage and be damped oscillation, and can make the practically negligible vibration of AC voltage regulator output voltage, thereby strengthen pressure regulation stability.
Accompanying drawing 1 is the circuit diagram of a kind of AC voltage regulator in the prior art.
Accompanying drawing 3 is circuit block diagrams of the AC voltage regulator of a kind of electric-motor drive tap described in the utility model.
Accompanying drawing 4 is circuit diagrams of the AC voltage regulator of a kind of electric-motor drive tap described in the utility model.
Below we in conjunction with the accompanying drawings 3 and 4 pairs of the utility model of accompanying drawing carry out more detailed description.
Most preferred embodiment:
As shown in Figure 3; The AC voltage regulator of electric-motor drive tap, by rectification circuit 1, reference circuit 2, sample circuit 3, comparer 4, phase sensitivity change-over circuit 5, reversible electric machine 6, compositions such as pressure regulator 7 and anti-phase relay circuit 8, rectification circuit 1 is a kind of bipolarity single-phase full-wave rectifer circuit, it has three output terminals, and these three output terminals are connected with comparer 4 via reference circuit road 2, sample circuit 3, anti-phase relay circuit 8 respectively, and comparer 4 is connected with the reversible electric machine 6 that drives pressure regulator 7 work by phase sensitivity change-over circuit 5.
As shown in Figure 4, transformer is that a kind of auxiliary winding has centre tapped rectifier transformer, and it becomes a kind of bipolarity single-phase full-wave rectifer circuit that positive supply A and negative power supply A are provided with four diode combinations; Reference circuit 2 is made up of three terminal regulator 15, sample circuit 3 is made up of the adjustable resistance of two divider resistances and the tap of a band, comparer also was combined into as a NPN triode and a PNP triode of electronic switch by the while, a public external connection end is formed in the corresponding back that connects of said these two transistor emitters, also forms a public external connection end after the base stage correspondence connects; Phase sensitivity change-over circuit 5 is by a bipolarity single-phase half-wave rectifier circuit that positive supply B and negative power supply B can be provided, two voltage relay and two filter capacitors are formed, voltage relay A11 be plugged between the positive terminal and NPN transistor collector of bipolarity single-phase half-wave rectifier circuit after filter capacitor A9 is in parallel, the NPN transistor emitter is connected with the center tap of rectifier transformer auxiliary winding, is normal phase circuits via PNP triode collector to the formed loop of emitter like this; In like manner, voltage relay B12 be plugged between the negative pole end and PNP transistor collector of bipolarity single-phase half-wave rectifier circuit after filter capacitor B10 is in parallel, the PNP transistor emitter is connected with the center tap of rectifier transformer auxiliary winding, like this, via the loop of PNP transistor emitter, be the negative circuit to collector.Anti-phase relay circuit 8 is made up of a positive relay circuit and a negative relay circuit, the positive relay circuit is by positive supply A, 2 second groups of contacts of adjustable resistor A13 and voltage relay device are composed in series, its output terminal is the normally opened contact in second group of contact of said voltage relay B12, the negative relay circuit is by negative power supply A, second group of contact of adjustable resistor B14 and voltage relay A11 is composed in series, and its output terminal is the normally opened contact in voltage relay A11 second contact; Said voltage relay A11 and voltage relay B12 first group of contact separately are connected with in 6 two input ends of reversible electric machine one of them respectively.
The positive polarity output terminal of bipolarity single-phase full-wave rectifer circuit divides three-line external, and one is connected with the public external connection end of said emitter through three terminal regulator 15; Another then in sample circuit 3 tap of adjustable resistance be connected with the public external connection end of said base stage; The last item also is connected with the public external connection end of said base stage through the positive relay circuit.The negative polarity output terminal of bipolarity single-phase full-wave rectifer circuit is connected with the public external connection end of said base stage via the negative relay circuit.
The emitter junction pressure drop of NPN triode and PNP triode is respectively 0.7V-0.3V.
When the sampling voltage that is applied to the public external connection end of base stage greater than the reference voltage that is applied to the public external connection end of emitter, and when its deviate surpasses 0.7V, the conducting of NPN triode, two normally opened contacts among the voltage relay A11 are triggered simultaneously, first group of contact makes reversible electric machine 6 running work, second group of contact makes the negative power supply A voltage in the bipolarity single-phase full-wave rectifer circuit after-applied on the public external connection end of base stage via negative relay circuit dividing potential drop, make said deviate less than 0.7V, force the NPN triode to be cut off, first group of contact among the voltage relay A14 returns to normal, and reversible electric machine 6 shuts down.
When the reference voltage that is applied to the public external connection end of emitter greater than the sampling voltage that is applied to the public external connection end of base stage, and its deviate is during greater than 0.3V, the PNP triode is switched on, two normally opened contacts among the voltage relay B12 are triggered, first group of contact makes reversible electric machine 6 running work, second group of contact makes the positive supply A of bipolarity single-phase full wave attitude current circuit after-applied on the public external connection end of base stage via positive relay circuit dividing potential drop, make said deviate less than 0.3V, force the PNP triode to end, first group of contact among the voltage relay B12 returns to normal, and reversible electric machine 6 shuts down.
Claims (4)
1, the AC voltage regulator of electric-motor drive tap, include rectification circuit 1, reference circuit 2, sample circuit 3, comparer 4, phase sensitivity change-over circuit 5, reversible electric machine 6 and pressure regulator 7, reference circuit 2 is connected with an input end of comparer 4 respectively with sample circuit 3, and the output terminal of comparer 4 is connected with the reversible electric machine 6 that drives pressure regulator 7 rotations by phase sensitivity change-over circuit 5, when the deviate of sampling voltage and comparative voltage departs from specialized range, comparer 4 output regulation signal electronic switch conductings, just realizing reversible electric machine 6 by phase sensitivity change-over circuit 5, counter-rotating is characterized in that
1.1 this AC voltage regulator also has an anti-phase relay circuit 8 that is plugged between rectification circuit 1 and the comparer 4,
1.1.1 said anti-phase relay circuit 8 is made up of a positive relay circuit and a negative relay circuit,
1.1.2 the positive relay circuit is by positive supply A, one group of contact of adjustable resistor A13 and voltage relay B12 is composed in series, and its output terminal is the normally opened contact in one group of contact of said voltage relay B12,
1.1.3 the negative relay circuit is by negative power supply A, one group of contact of adjustable resistor B14 and voltage relay A11 is composed in series, and its output terminal is the normally opened contact in one group of contact of said voltage relay A11,
1.2 voltage relay A11 and voltage relay B12 are connected with in 6 two input ends of reversible electric machine one of them respectively by the normally opened contact in another group contact separately,
1.3 said phase sensitivity change-over circuit 5 is made up of with the two-circuit form normal phase circuits and negative circuit,
1.3.1 normal phase circuits is by positive supply B, voltage relay A11, and compositions such as filter capacitor A9 and electronic switch A are plugged between positive supply B and the electronic switch after voltage relay A11 and the filter capacitor A9 parallel connection,
1.3.2 the negative circuit is by negative power supply B, voltage relay B12, compositions such as filter capacitor B10 and electronic switch B, be plugged between negative power supply B and the electronic switch B after voltage relay B12 and the filter capacitor B10 parallel connection, when comparer 4 output regulation signals, triggered two normally opened contacts in the voltage relay of connecting simultaneously, one of them causes reversible electric machine 6 runnings, another then by anti-phase relay circuit 8 to one group of comparer 4 stack and the opposite polarity anti-phase relay signal voltage of said deviation to offset said deviation, force the electronic switch of former conducting to end.
2, the AC voltage regulator of electric-motor drive tap according to claim 1 is characterized in that,
2.1 said positive supply A and negative power supply A are made up of a kind of bipolarity single-phase full-wave rectifer circuit, it is made up of centre tapped rectifier transformer and four diodes a secondary winding,
2.2 said positive supply B and negative power supply B are made up of a kind of bipolarity single-phase half-wave rectifier circuit, it is made up of centre tapped rectifier transformer and two diodes a secondary winding.
3, the AC voltage regulator device of electric-motor drive tap according to claim 1 is characterized in that, said anti-phase relay circuit signal voltage equates with deviation A, and said deviation A is sampling voltage and the reference voltage maximum deviation after relatively.
4, the AC voltage regulator of electric-motor drive tap according to claim 1 is characterized in that,
4.1 said comparer 5 is a kind of pair of definite value comparers,
4.2 said pair of definite value comparer is made up of a NPN triode and a PNP triode of also being simultaneously electronic switch,
4.3 said two triodes
4.3.1 after the corresponding connection of emitter, be connected with reference circuit 2 output terminals again,
4.3.2 after the corresponding connection of base stage, be connected with sample circuit 3 output terminals again, when sampling voltage greater than reference voltage, and this deviate is during greater than the pressure drop of NPN triode emitter junction, the conducting of NPN triode, when sampling voltage less than reference voltage, and this deviate is during less than the pressure drop of PNP triode emitter junction, the conducting of PNP triode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200325 CN2242475Y (en) | 1995-01-06 | 1995-01-06 | AC manostat with electric motor driven tap switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95200325 CN2242475Y (en) | 1995-01-06 | 1995-01-06 | AC manostat with electric motor driven tap switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2242475Y true CN2242475Y (en) | 1996-12-11 |
Family
ID=33854110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95200325 Expired - Fee Related CN2242475Y (en) | 1995-01-06 | 1995-01-06 | AC manostat with electric motor driven tap switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2242475Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591390A (en) * | 2011-01-17 | 2012-07-18 | 产晶集成电路股份有限公司 | Power detecting and adjusting device |
| CN103245559A (en) * | 2013-04-10 | 2013-08-14 | 深圳三思纵横科技股份有限公司 | Metal tensile test method and device capable of preventing force failure |
-
1995
- 1995-01-06 CN CN 95200325 patent/CN2242475Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102591390A (en) * | 2011-01-17 | 2012-07-18 | 产晶集成电路股份有限公司 | Power detecting and adjusting device |
| CN102591390B (en) * | 2011-01-17 | 2013-12-25 | 产晶集成电路股份有限公司 | Power detecting and adjusting device |
| CN103245559A (en) * | 2013-04-10 | 2013-08-14 | 深圳三思纵横科技股份有限公司 | Metal tensile test method and device capable of preventing force failure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |