JPS5444462A - Phase control circuit for thyristor - Google Patents
Phase control circuit for thyristorInfo
- Publication number
- JPS5444462A JPS5444462A JP11109277A JP11109277A JPS5444462A JP S5444462 A JPS5444462 A JP S5444462A JP 11109277 A JP11109277 A JP 11109277A JP 11109277 A JP11109277 A JP 11109277A JP S5444462 A JPS5444462 A JP S5444462A
- Authority
- JP
- Japan
- Prior art keywords
- scr
- voltage
- load
- time
- turned
- 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.)
- Granted
Links
Landscapes
- Power Conversion In General (AREA)
Abstract
PURPOSE: To suppress the maximum applied voltage lower without lowering the effective voltage to the load, by connecting the negative resistor to the gate of SCR and by performing the phase control so that the gate current is bypassed during the period of the power supply voltage more than a given value.
CONSTITUTION: While the output voltage of the rectifier 11 is lower than V1 from the time To to T1, the load resistive element 9 is at off condition, and the SCR 8 is triggered through the resistor 7, being turned on and power is fed to the load 10. When the output voltage of the rectifier 11 exceeds the given voltage V1 at time T1, the element 9 is turned on, the gate current of SCR 8 is bypassed, stop- ping the trigger to SCR 8, the inverter is operated and positive pulse is fed to the cathode of SCR 8 via the capacitor 6, turning off SCR 8. This condition is held from time T1 to T2 and SCR 8 is again turned on at time T3. Thus, power can be sup- plied to the load of the rated voltage considerably lower than the power supply vol- tage without reducing the life.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11109277A JPS5840427B2 (en) | 1977-09-14 | 1977-09-14 | Thyristor phase control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11109277A JPS5840427B2 (en) | 1977-09-14 | 1977-09-14 | Thyristor phase control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5444462A true JPS5444462A (en) | 1979-04-07 |
| JPS5840427B2 JPS5840427B2 (en) | 1983-09-06 |
Family
ID=14552167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11109277A Expired JPS5840427B2 (en) | 1977-09-14 | 1977-09-14 | Thyristor phase control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5840427B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511836A (en) * | 1981-11-02 | 1985-04-16 | Eriksson Bror Allan | Circuit arrangement for power control |
| US4675798A (en) * | 1985-07-15 | 1987-06-23 | Harris Corporation | Direct coupled switching power supply with GTO SCR switching element |
| EP1754304A1 (en) * | 2004-05-24 | 2007-02-21 | Young-Chang Cho | Method for controlling low- voltage using waves ac and system for performing the same |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0511063Y2 (en) * | 1985-07-10 | 1993-03-18 | ||
| JPS6212428A (en) * | 1985-07-11 | 1987-01-21 | Kubota Ltd | Hydraulic pump setting structure in farm tractor |
-
1977
- 1977-09-14 JP JP11109277A patent/JPS5840427B2/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4511836A (en) * | 1981-11-02 | 1985-04-16 | Eriksson Bror Allan | Circuit arrangement for power control |
| US4675798A (en) * | 1985-07-15 | 1987-06-23 | Harris Corporation | Direct coupled switching power supply with GTO SCR switching element |
| EP1754304A1 (en) * | 2004-05-24 | 2007-02-21 | Young-Chang Cho | Method for controlling low- voltage using waves ac and system for performing the same |
| EP1754304A4 (en) * | 2004-05-24 | 2008-05-28 | Young-Chang Cho | Method for controlling low- voltage using waves ac and system for performing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5840427B2 (en) | 1983-09-06 |
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