CN2145475Y - Silicon controlled rectifier derect controlled by magnetic amplifier - Google Patents
Silicon controlled rectifier derect controlled by magnetic amplifier Download PDFInfo
- Publication number
- CN2145475Y CN2145475Y CN 92240845 CN92240845U CN2145475Y CN 2145475 Y CN2145475 Y CN 2145475Y CN 92240845 CN92240845 CN 92240845 CN 92240845 U CN92240845 U CN 92240845U CN 2145475 Y CN2145475 Y CN 2145475Y
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- CN
- China
- Prior art keywords
- magnetic amplifier
- utility
- silicon controlled
- controllable silicon
- model
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model belongs to the technical field of electric control, particularly a silicon controlled rectifier which is directly controlled by a magnetic amplifier. The utility model is chiefly composed of an input terminal, an output terminal, a silicon controlled main circuit and a magnetic amplifier. The utility model is characterized in that a silicon controlled element is connected between the input terminal and the output terminal in series; both ends of an alternating-current winding in the magnetic amplifier are separately connected with the input terminal and a silicon controlled gate branch circuit; a direct current control winding and a feedback winding are also arranged in the magnetic amplifier. The utility model overcomes the defects that the structure of the traditional electric control device is complicated, the material consumption is high, and the operation and maintenance is bothersome. The utility model has the advantages of simple structure, high reliability, wide application ranges, etc.
Description
The utility model belongs to the Electrical Control Technology field, especially relates to the directly actuated silicon controlled rectifier of a kind of magnetic amplifier.
In many electric equipments, adopted the SCR control device, but adopting mostly, present employed SCR control device has independent synchro source and phase-shift pulse circuits for triggering, pulse transformer or optocoupler etc., to realize with simultaneous phase-shifting pulse-triggered controllable silicon, reach the adjustable purpose of output signal, its deficiency is complex structure, uses and keeps in repair trouble.
The purpose of this utility model is to provide that a kind of simple in structure, materials are economized, the directly actuated silicon controlled rectifier of power consumption magnetic amplifier little, convenient maintenance.
Technical solution of the present utility model is such: it comprises input, output, controllable silicon main circuit and magnetic amplifier, it is characterized in that being serially connected with thyristor between input and the output, the two ends of AC Windings join with input and controllable silicon gate pole branch road respectively and also are provided with DC control winding and feedback winding in the magnetic amplifier in the magnetic amplifier.
The utility model compared with prior art has that circuit design is simple, easy to manufacture, easy to use, the reliability advantages of higher, is applicable to single-phase, three phase rectifier equipment, electric equipments such as motor excitation, motor speed regulation equipment and AC voltage adjusting.
In conjunction with the accompanying drawings and embodiments, specifically describe as follows to the utility model:
Fig. 1 is one of circuit theory diagrams of the present utility model
Fig. 2 is two of circuit theory diagrams of the present utility model.
In Fig. 1: the utility model is by AC power input terminal 3, terminals 4, outlet terminal 5, terminals 6, controllable silicon SCR
1, capacitor C, resistance R the controllable silicon main circuit 1 and the SR formula magnetic amplifier 2 that constitute form controllable silicon SCR
1Be serially connected between input terminal 4 and the outlet terminal 6 controllable silicon SCR
1The gate pole branch road on be serially connected with resistance R and capacitor C, the AC Windings N in the other end of resistance R and the SR formula magnetic amplifier 2
2 Terminal 3. link to each other the AC Windings N in the SR formula magnetic amplifier 2
1Terminal 1. join AC Windings N with input terminal 4
1Terminal 2. with AC Windings N
2Terminal 4. link to each other, be provided with DC control winding N in the SR formula magnetic amplifier 2
3With feedback winding N
4, terminals 7 and terminals 8 are DC control winding N
3Two ends, terminals 9 and terminals 10 are feedback winding N
4Two ends, during use, can be with DC control winding N
3Terminals 7 be connected with extraneous DC control supply with terminals 8, work as controllable silicon SCR
1When anode was in positive half cycle, the widened pulse that can export one 0～(π)/2 phase shift went to trigger controllable silicon SCR
1Self is because in controllable silicon SCR
1Gate pole be serially connected with shift capacitor C and ballast resistor R, can make output signal can reach the phase shifting control of 0～π scope, because SR formula magnetic amplifier 2 shows as a meritorious element (pure resistive) in alternating current circuit, it makes circuital current and institute's making alive homophase, controllable silicon SCR
1Gate pole be connected in series after the shift capacitor C, make the leading institute of the electric current making alive (π)/2 in the circuit, thereby reach the phase shift range of 0～π, the resistance R that is connected in series in the circuit, be to be used for eliminating in the phase shift trigger process, the phase shift saltus step phenomenon that may occur when sporting capacitive character by resistive, thereby reach the purpose of the level and smooth phase shift of 0～π, SR formula magnetic amplifier 2 is in when being subjected to extraneous DC control supply controllable state, its work is just like a sluice gate, can control the opportunity of its unlatching, so as to the size of control alternating current circuit electric current, its performance and controllable silicon SCR
1The variation of the angle of flow similar, thereby utilize this characteristic of SR formula magnetic amplifier 2 to control controllable silicon SCR
1Phase shift trigger to be very practical.
In Fig. 2, another embodiment of the present utility model is by AC power input terminal 3, terminals 4, outlet terminal 5, terminals 6, bidirectional triode thyristor SCR
2Form bidirectional triode thyristor SCR with controllable silicon main circuit 1 and SR formula magnetic amplifier 2 that diode D constitutes
2Be serially connected between input terminal 4 and the outlet terminal 6 bidirectional triode thyristor SCR
2The gate pole branch road on be connected to diode D, the AC Windings N of SR formula magnetic amplifier 2
1Terminal 1. with AC Windings N
2Terminal 4. directly be connected across bidirectional triode thyristor SCR
2Anode and gate pole, AC Windings N
1Terminal 2. with AC Windings N
2Terminal 3. link to each other.During use, earlier with the DC control winding N in the SR formula magnetic amplifier 2
3 Terminals 7 and terminals 8 be connected to extraneous DC control supply, then input is connected to AC power, when regulating extraneous DC control supply, can make bidirectional triode thyristor SCR
2Output signal can be 0～150 ° of scope phase shifting control, in controllable silicon SCR
2When the gate pole branch road was taken in serial connection diode D, the polarity of output output signal was along with diode D's just connects or reversal connection and changing.
Claims (4)
1, the directly actuated silicon controlled rectifier of a kind of magnetic amplifier, it comprises input terminal (3), (4), outlet terminal (5), (6), controllable silicon main circuit (1) and magnetic amplifier (2), it is characterized in that being serially connected with controllable silicon SCR between input terminal (4) and the outlet terminal (6) magnetic amplifier (2) AC Windings (N
1), (N
2) terminal (1.), (3.) join with input terminal (4) and controllable silicon SCR gate pole branch road respectively, also be provided with DC control winding (N in the magnetic amplifier (2)
3) and feedback winding (N
4).
2, the directly actuated silicon controlled rectifier of magnetic amplifier according to claim 1 is characterized in that described controllable silicon main circuit (1) is by controllable silicon SCR
1, resistance R and capacitor C be in series.
3, the directly actuated silicon controlled rectifier of magnetic amplifier according to claim 1 is characterized in that described controllable silicon main circuit (1) is by bidirectional triode thyristor SCR
2Constitute.
4, the directly actuated silicon controlled rectifier of magnetic amplifier according to claim 3 is characterized in that described bidirectional triode thyristor SCR
2Gate pole can be connected in series diode D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240845 CN2145475Y (en) | 1992-11-18 | 1992-11-18 | Silicon controlled rectifier derect controlled by magnetic amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92240845 CN2145475Y (en) | 1992-11-18 | 1992-11-18 | Silicon controlled rectifier derect controlled by magnetic amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2145475Y true CN2145475Y (en) | 1993-11-03 |
Family
ID=33781085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92240845 Expired - Fee Related CN2145475Y (en) | 1992-11-18 | 1992-11-18 | Silicon controlled rectifier derect controlled by magnetic amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2145475Y (en) |
-
1992
- 1992-11-18 CN CN 92240845 patent/CN2145475Y/en not_active Expired - Fee Related
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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 |