CN2494577Y - Bidirectional thyristor capacitance charging-and-discharging trigger - Google Patents
Bidirectional thyristor capacitance charging-and-discharging trigger Download PDFInfo
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- CN2494577Y CN2494577Y CN 01211184 CN01211184U CN2494577Y CN 2494577 Y CN2494577 Y CN 2494577Y CN 01211184 CN01211184 CN 01211184 CN 01211184 U CN01211184 U CN 01211184U CN 2494577 Y CN2494577 Y CN 2494577Y
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- control
- triode thyristor
- bidirectional triode
- switch
- utmost point
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Abstract
A bidirectional controlled silicon capacitance charging-and-discharging trigger includes a bidirectional controlled silicon TS and a voltage reduction and rectification part 1, a charging-and-discharging capacitance C3 and a control switch K. The charging-and-discharging capacitance C3 after in series connection with the control switch K is connected between a control pole G of the bidirectional controlled silicon and one pole of the output end of the rectification part 1. The bidirectional controlled silicon is conducted by making use of capacitance charging-and-discharging. The conducting time of the bidirectional controlled silicon can be changed by changing the closing time of the control switch. The trigger has the advantages of simple structure, smaller triggering circuit, extremely small ultraharmonics, synchronous triggering with power frequency and zero passage triggering. The trigger can be applied as the control power of electric appliances such as electrothermal load and electric fan.
Description
The utility model relates to the trigger equipment that a kind of bidirectional triode thyristor is a bidirectional thyristor, a kind of bidirectional triode thyristor capacitor charge and discharge formula trigger.
The The Trigger of Bidirectional Triode Thyristor device generally need change the trigger current that different directions is provided to the control utmost point, promptly two-way triggering, this trigger structure more complicated by the cycle of AC power.A kind of economize on electricity electric iron circuit has been introduced in " practical energy-saving circuit making " the 165th page, and the 217-218 page or leaf of this book has been introduced a kind of heat-sealing machine economize on electricity temperature control circuit.Bidirectional triode thyristor in above-mentioned two kinds of circuit has all adopted the unidirectional pulse trigger, and the required trigger current of this trigger is big, sometimes can't two-way complete conducting.
The purpose of this utility model is the structure that proposes the two-way trigger of the better simply bidirectional triode thyristor of a kind of structure, a kind of bidirectional triode thyristor capacitor charge and discharge formula trigger.
This bidirectional triode thyristor capacitor charge and discharge formula trigger, comprise bidirectional triode thyristor and step-down rectifier parts, a main terminal of bidirectional triode thyristor connects a utmost point of AC power, another main terminal of bidirectional triode thyristor is the output that connects load, it also comprises a charge and discharge capacitance and a control switch, between the utmost point of charge and discharge capacitance and the output of the control utmost point of receiving bidirectional triode thyristor after control switch is connected and rectification part.
One of load is terminated to the output of this bidirectional triode thyristor capacitor charge and discharge formula trigger, the other end of load receive AC power another extremely go up, get final product work.Its operation principle is as follows: closed control switch, and when AC power was in certain half cycle, main terminal of bidirectional triode thyristor and the conducting of the control utmost point were to charging capacitor charging, bidirectional triode thyristor conducting; When AC power entered another half cycle, having filled electric electric capacity will be by another main terminal discharge of the control utmost point and bidirectional triode thyristor, and bidirectional triode thyristor also is in conducting state.Change the closing time of control switch, can change the ON time of bidirectional triode thyristor, reach the purpose of change load with electricity condition.This bidirectional triode thyristor capacitor charge and discharge formula trigger has been owing to adopted the scheme of utilizing capacitor charge and discharge to make the bidirectional triode thyristor conducting, and is simple in structure, trigger current is less, and is and supply frequency synchronous triggering and zero cross fired that high order harmonic component is minimum.
Accompanying drawing 1 is the basic structure schematic diagram of this bidirectional triode thyristor capacitor charge and discharge formula trigger;
Accompanying drawing 2 is for adopting the structure chart of relay-operated controller as the bidirectional triode thyristor capacitor charge and discharge formula trigger of control switch;
As shown in Figure 1, this bidirectional triode thyristor capacitor charge and discharge formula trigger, comprise bidirectional triode thyristor TS and step-down rectifier parts 1, a main terminal T1 of bidirectional triode thyristor connects a utmost point of AC power, another main terminal T2 of bidirectional triode thyristor is the output that connects load, it also comprises a charge and discharge capacitance C3 and a control switch K, between the utmost point of charge and discharge capacitance C3 and the output of control utmost point G that receives bidirectional triode thyristor after control switch K connects and rectification part 1.The output of above-mentioned rectification part 1 can be anodal, also can be negative pole, and it is better generally to connect negative pole.Control switch K can be manual mechanical switch, also can be relay system switch or electronic switch.2 are the connection socket of load among the figure, and wherein a utmost point links to each other with main terminal T2, another utmost point of another termination AC power.Rectification part 1 among the figure is common step-down, bridge rectifier, stable-pressure device, is made up of capacitor C 1, C2 resistance R 1 diode D1-D4 and voltage-stabiliser tube D5.
Shown in Figure 2 being adopted the structure chart of relay-operated controller as the bidirectional triode thyristor capacitor charge and discharge formula trigger of control switch.This relay-operated controller comprises a control-signals generator 3 and a relay J 1, the control coil of relay is received the output of control-signals generator 3, between the utmost point (being negative pole among the figure) of a contact J1-1 of relay (being a normally opened contact among the figure) and the output of control utmost point G that is connected on bidirectional triode thyristor after described charge and discharge capacitance C3 connects and rectification part 1.The control signal of being sent by control-signals generator 3 makes the control coil of relay J 1 get electric or dead electricity, and relay contact J1-1 is closed thereupon or disconnect, and bidirectional triode thyristor is with regard to conducting or end.Control-signals generator 3 shown in the figure is a light shutter device of being made up of 555 integrated packages, triode BG1 and photo resistance RG.When the last illumination of photo resistance RG is strong, 555 integrated package output low levels, triode BG1 ends, no-output; When illumination is attenuated to a certain degree, the upset of 555 integrated packages, the output high level, triode BG1 conducting has output.This bidirectional triode thyristor trigger is actually a Light-controlled power socket, can be used as the street lamp of automatic control, the power supply of corridor lamp.
Figure 3 shows that and adopt the bidirectional triode thyristor capacitor charge and discharge formula trigger of bidirectional electronic switch as control switch.Bidirectional electronic switch comprises a NPN type switch triode BG2, diode D6 and control-signals generator 4.The negative pole of above-mentioned diode D6 links to each other with the positive output end of described rectification part 1 with after the collector electrode of switch triode BG2 links to each other.The positive pole of above-mentioned diode D6 with link to each other with the control utmost point G of bidirectional triode thyristor TS by charging capacitor C3 again after the emitter of switch triode BG2 links to each other.The base stage of switch triode BG2 links to each other with the signal output part of control-signals generator 4.When control-signals generator 4 output high level, switch triode BG2 conducting, bidirectional triode thyristor TS conducting.When being used at control-signals generator 4 output high level, at the power-half cycle, diode D6 provides path for the control electrode current.After control-signals generator 4 output low levels, switch triode BG2 ended, charging capacitor C3 can't discharge by after the diode D6 charging in a negative half period again, thereby this moment, bidirectional triode thyristor was in off state.Switch triode BG2 is if use the pipe of positive-negative-positive, and direction gets final product then only to need to change diode D6 once, and at this moment, charge and discharge capacitance C3 then can link to each other with the negative output terminal of rectification part 1 by switch triode BG2, also can play same effect.The square-wave generator that control-signals generator 4 among Fig. 4 is made up of 555 integrated packages and diode, resistance.The travelling arm of regulator potentiometer W can be regulated the output duty of ratio, thereby regulates the conducting of bidirectional triode thyristor and the time ratio that ends, and makes the power output of load adjusted.The control power supply that this bidirectional triode thyristor capacitor charge and discharge formula trigger can be used as consuming devices such as electrothermal load, electric fan uses.
Claims (3)
1, a kind of bidirectional triode thyristor capacitor charge and discharge formula trigger, comprise bidirectional triode thyristor (TS) and step-down rectifier parts (1), a main terminal (T1) of bidirectional triode thyristor connects a utmost point of AC power, another main terminal (T2) of bidirectional triode thyristor is for connecing the output of load, it is characterized in that it also comprises a charge and discharge capacitance (C3) and a control switch (K), between the utmost point of charge and discharge capacitance (C3) and the output of the control utmost point (G) of receiving bidirectional triode thyristor after control switch (K) is connected and rectification part (1).
2, bidirectional triode thyristor capacitor charge and discharge formula trigger as claimed in claim 1, it is characterized in that described control switch is a relay-operated controller, comprise a control-signals generator (3) and a relay (J1), the control coil of relay is received the output of control-signals generator (3), between the utmost point of a contact (J1-1) of relay and the output of the control utmost point (G) that is connected on bidirectional triode thyristor after described charge and discharge capacitance (C3) is connected and rectification part (1).
3, bidirectional triode thyristor capacitor charge and discharge formula trigger as claimed in claim 1, it is characterized in that described control switch is a two-way electronic switch, comprise a NPN type switch triode (BG2), a diode (D6) and control-signals generator (4), the negative pole of above-mentioned diode (D6) links to each other with the positive output end of described rectification part (1) with after the collector electrode of switch triode (BG2) links to each other; The positive pole of above-mentioned diode (D6) with link to each other with the control utmost point (G) of bidirectional triode thyristor (TS) by charging capacitor (C3) again after the emitter of switch triode (BG2) links to each other, the base stage of switch triode (BG2) links to each other with the signal output part of control-signals generator (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211184 CN2494577Y (en) | 2001-03-14 | 2001-03-14 | Bidirectional thyristor capacitance charging-and-discharging trigger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01211184 CN2494577Y (en) | 2001-03-14 | 2001-03-14 | Bidirectional thyristor capacitance charging-and-discharging trigger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2494577Y true CN2494577Y (en) | 2002-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01211184 Expired - Fee Related CN2494577Y (en) | 2001-03-14 | 2001-03-14 | Bidirectional thyristor capacitance charging-and-discharging trigger |
Country Status (1)
| Country | Link |
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| CN (1) | CN2494577Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011050551A1 (en) * | 2009-10-30 | 2011-05-05 | 深圳和而泰智能控制股份有限公司 | Dirve circuit for silicon controlled rectifier, device and control method thereof |
-
2001
- 2001-03-14 CN CN 01211184 patent/CN2494577Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011050551A1 (en) * | 2009-10-30 | 2011-05-05 | 深圳和而泰智能控制股份有限公司 | Dirve circuit for silicon controlled rectifier, device and control method thereof |
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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 |