CN2077561U - AC voltage stabilizer - Google Patents
AC voltage stabilizer Download PDFInfo
- Publication number
- CN2077561U CN2077561U CN 90212860 CN90212860U CN2077561U CN 2077561 U CN2077561 U CN 2077561U CN 90212860 CN90212860 CN 90212860 CN 90212860 U CN90212860 U CN 90212860U CN 2077561 U CN2077561 U CN 2077561U
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- China
- Prior art keywords
- voltage
- output terminal
- code translator
- join
- output
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- Expired - Lifetime
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- 239000003381 stabilizer Substances 0.000 title abstract description 3
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 13
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims 2
- 230000006870 function Effects 0.000 abstract 1
- 230000008447 perception Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 230000001939 inductive effect Effects 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Abstract
An AC voltage stabilizer is a power supply device, which is applied to electrical equipment and is a voltage stabilizing and protecting device when the voltage fluctuation of a power grid exceeds the allowable range. The utility model discloses by taking a percentage more and constitute as the primary coil's of steady voltage transformer, multichannel bidirectional thyristor, digital integrated circuit etc. according to electric wire netting input voltage's size, at alternating-current sine wave voltage zero passage, make its secondary coil terminal voltage and electric wire netting input voltage vector stack, stabilize output voltage (undulant in a small circle). The utility model has the characteristics of voltage distortionless, steady voltage scope is wide, the pressure regulating is fast, the good reliability etc, has warning and protect function, can be suitable for and hinder, hold, perception load.
Description
The utility model relates to AC voltage regulator, is a kind of supply unit, is applied in electrical equipment (as Industry Control, instrument, instrument, computing machine, household electrical appliance etc.), a kind of voltage stabilizing and protective device when voltage ripple of power network exceeds its allowed band.
Notification number is that CN2038645U discloses a kind of AC voltage regulator; its voltage stabilized range is wide, volume is little, unreasonable energy consumption is little, but because of adopting relay to trigger the multichannel controllable silicon, so the voltage stabilizing waveform is discontinuous; the precision of voltage regulation is low, and the defencive function that does not possess overtension when (or low excessively).
The purpose of this utility model provides a kind of AC voltage regulator that adopts multichannel bidirectional triode thyristor zero cross fired electronic technology.
The utility model is achieved in that
The output terminal of (1) one group of comparer (4) and priority encoder (5) join, connect code translator (6) again behind the output termination reshaper (10) of priority encoder (5), the output terminal of code translator (6) and driver (12) join, and the output terminal of driver (12) connects with the G trigger end of multichannel bidirectional triode thyristor (2).
(2) connect with the latch signal input end GL of code translator (6) after the output terminal of phase shift comparer (7) connects with burst pulse device (8).
The output terminal HI of (3) one groups of comparers (4), LO two ends and permission start chronotron (11) and connect, and allow the output terminal of startup chronotron (11) and the permission output terminal IN of burst pulse device (8) to join.
(4) the output terminal Y of code translator (6)
7, Y
0Connect with two luminous indicators (9A), (9B) respectively.
(5) priority encoder (5) be digital integrated circuit 74 series 147 or 148 or 4000 series 4532.Code translator (6) is that 137 or 237 of digital integrated circuit 74 series are formed.
Now the course of work of the present utility model is described below:
During the utility model work, the DC voltage V that the electrical network input voltage is directly proportional
ACompare with the voltage reference value on the resistor network (3), make the output of one group of comparer (4) drive multichannel bidirectional triode thyristor (2) through priority encoder (5), reshaper (10), code translator (6), driver (12).Under-voltage or the superpressure state corresponding to the electrical network input voltage, the output terminal Y of code translator (6)
0Corresponding under-voltage condition, Y
7Corresponding superpressure state makes luminous indication (9A), (9B) luminous, indicates under-voltage or superpressure plays the warning effect.Do not have corresponding multichannel bidirectional triode thyristor (2) conducting this moment, cut off voltage output V
UN, electrical equipment is protected.The Y of code translator (6)
1～Y
6One of if any output, drive one of multichannel bidirectional triode thyristor (2) triggering and conducting, V through driver (12)
LNCarry out vector superposedly with voltage on each coil of single-circuit transformer (1), guaranteed output voltage V
UNStable in the scope that requires.
Ac voltage V with the output homophase
B, through phase comparator (7) and burst pulse device (8), the trigger pip for code translator (6) provides the decoding of ac voltage zero passage to latch makes multichannel bidirectional triode thyristor (2) zero cross fired can adapt to resistance, electric capacity and inductive load.
Allow delayed startup device (11) when powering on, produce code translator (6) latch signal for the utility model.As electrical network input voltage V
LNDuring under-voltage or superpressure state, the latch signal of closing code translator (6); Treat electrical network input voltage V
LNAfter recovering normally, time-delay produces code translator (6) latch signal, makes electrical equipment be subjected to voltage-stabilizing protection.
The single-circuit transformer (1) of many output tap of forming with the power coil different with electric pressure can be made the voltage stabilizer of multiple voltage stabilizing power, voltage stabilized range and precision, and is flexible and changeable.
Accompanying drawing is the circuit diagram of an embodiment of the present utility model.
An existing accompanying drawings embodiment of the present utility model:
6 output terminals of single-circuit transformer (1) meet the T of multichannel bidirectional triode thyristor (2) respectively
1End, the T of multichannel bidirectional triode thyristor (2)
2End is connected to the u end.The DC voltage V that is directly proportional with the electrical network input voltage
A, through R
10, R
9After the dividing potential drop, connect an input end of 7 comparers (4), fixed voltage is at resistor network (3) R
1～R
8On the branch pressure side of making line voltage size benchmark connect another input ends of 7 comparers (4) respectively.
The input end of the output termination priority encoder (5) of 7 comparers (4) connects code translator (6) behind the output termination reshaper (10) of priority encoder (5), again corresponding to electrical network input voltage V
LN, the output terminal Y of code translator (6)
0, Y
7Two luminous indications of termination (9A), (9B), Y
0End is corresponding to under-voltage condition, Y
7End is corresponding to the superpressure state, the output terminal Y of code translator (6)
1～Y
6End meets the G of multichannel bidirectional triode thyristor (2) through driver (12)
1～G
6Trigger end, in the multichannel bidirectional triode thyristor (2) if any a conducting, N
LNWith voltage on each coil of single-circuit transformer (1) carry out vector superposed, to guarantee output voltage V
u, V
NStable in the scope that requires.
Ac voltage V with the output homophase
BConnect phase comparator (7) and voltage stabilizing operation indicator (13).Phase comparator (7) meets the latch signal input end GL of code translator (6) behind burst pulse device (8), make multichannel bidirectional triode thyristor (2) zero cross fired of output terminal driver connected (12) driving of code translator (6).
It is undistorted to the utlity model has voltage, and voltage stabilized range is wide, flexible and changeable, and pressure regulation speed is fast, and the characteristics such as good reliability have and report to the police and defencive function, adapt to resistance, electric capacity, inductive load.
Claims (3)
1, a kind of AC voltage regulator, by the single-circuit transformer [1] of many output tap, luminous indication [9A], [9B], voltage stabilizing operation indicator [13], reshaper compositions such as [10] is characterized in that:
The output terminal of (1) one group of comparer [4] and priority encoder [5] join, connect code translator [6] again behind the output termination reshaper [10] of priority encoder [5], the output terminal of code translator [6] and driver [12] join, and the G trigger end of the output terminal of driver [12] and multichannel bidirectional triode thyristor [2] joins;
(2) connect with code translator [6] latch signal input end GL after the output terminal of phase comparator [7] connects with burst pulse device [8];
The output terminal HL of (3) one groups of comparers [4], LO two ends and permission start chronotron [11] and connect, and allow the output terminal of startup chronotron [11] and the permission output terminal IN of burst pulse device [8] to join;
(4) the output terminal Y of code translator [6]
7, Y
0Join with two luminous indications [9A], [9B] respectively.
2,, it is characterized in that priority encoder (5) is 4532 of 147 or 148 or 4000 series of digital integrated circuit 74 series by the described a kind of AC voltage regulator of claim 1.
3,, it is characterized in that 137 or 237 compositions of code translator (6) for digital integrated circuit 74 series by the described AC voltage regulator of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90212860 CN2077561U (en) | 1990-05-16 | 1990-05-16 | AC voltage stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90212860 CN2077561U (en) | 1990-05-16 | 1990-05-16 | AC voltage stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2077561U true CN2077561U (en) | 1991-05-22 |
Family
ID=4892380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90212860 Expired - Lifetime CN2077561U (en) | 1990-05-16 | 1990-05-16 | AC voltage stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2077561U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360706A (en) * | 2014-10-31 | 2015-02-18 | 国家电网公司 | Novel contactless voltage stabilizer |
| CN109254608A (en) * | 2018-11-15 | 2019-01-22 | 湖南工业大学 | Auto compensating type AC voltage-stabilizing control method |
| CN109714034A (en) * | 2018-12-12 | 2019-05-03 | 崔凤来 | Automatically track silicon-controlled quasi- current over-zero trigger control method and circuit |
-
1990
- 1990-05-16 CN CN 90212860 patent/CN2077561U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104360706A (en) * | 2014-10-31 | 2015-02-18 | 国家电网公司 | Novel contactless voltage stabilizer |
| CN104360706B (en) * | 2014-10-31 | 2016-03-02 | 国家电网公司 | Novel non-contact voltage stabilizer |
| CN109254608A (en) * | 2018-11-15 | 2019-01-22 | 湖南工业大学 | Auto compensating type AC voltage-stabilizing control method |
| CN109714034A (en) * | 2018-12-12 | 2019-05-03 | 崔凤来 | Automatically track silicon-controlled quasi- current over-zero trigger control method and circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |