JPS5487162A - Control circuit for ac power semiconductor switch device - Google Patents
Control circuit for ac power semiconductor switch deviceInfo
- Publication number
- JPS5487162A JPS5487162A JP15535077A JP15535077A JPS5487162A JP S5487162 A JPS5487162 A JP S5487162A JP 15535077 A JP15535077 A JP 15535077A JP 15535077 A JP15535077 A JP 15535077A JP S5487162 A JPS5487162 A JP S5487162A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- control circuit
- terminals
- fed
- constitution
- 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.)
- Pending
Links
Landscapes
- Power Conversion In General (AREA)
Abstract
PURPOSE: To smiplify the constitution of the semiconductor switch device control circuit, by using the negative resistance element which flows current at the applied voltage lower than a value and does not flow current at the greater voltage than a value.
CONSTITUTION: When AC voltage is fed between the terminals AC1 and AC2, the voltage rectified with the diodes D2 to D5 is fed to the negative resistance element A via the photo variable resistance element PC. Further, the element A consists of the n channel FET1 and p channel FET2, and it is conductive when the voltage fed between the terminals AC1 and AC2 is low and not conductive when it is high, operating as the detection element near the zero potential of AC voltage. When the LED photo-coupled with the element PC is illuminated, the element PC is lower in resistance, and the element A is operated, and one of the SCR's with the gate G1 or G2 of SCRGR1 and FR2 in anti-parallel connection. Accordingly, current flows to the load connected between the terminals AC1 and AC2. Thus, the control circuit of a simple circuit constitution can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15535077A JPS5487162A (en) | 1977-12-23 | 1977-12-23 | Control circuit for ac power semiconductor switch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15535077A JPS5487162A (en) | 1977-12-23 | 1977-12-23 | Control circuit for ac power semiconductor switch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5487162A true JPS5487162A (en) | 1979-07-11 |
Family
ID=15603963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15535077A Pending JPS5487162A (en) | 1977-12-23 | 1977-12-23 | Control circuit for ac power semiconductor switch device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5487162A (en) |
-
1977
- 1977-12-23 JP JP15535077A patent/JPS5487162A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES8306952A1 (en) | Intensity regulator, especially a light regulator | |
| JPS57193964A (en) | Switching device | |
| JPS57192129A (en) | Semiconductor relay | |
| JPS5487162A (en) | Control circuit for ac power semiconductor switch device | |
| JPS5487161A (en) | Control circuit for ac power semiconductor switch device | |
| JPS5511642A (en) | Control circuit of semiconductor switch unit for alternating power use | |
| JPS5748829A (en) | Semiconductor switch circuit | |
| JPS5762630A (en) | Control circuit device | |
| JPS55105840A (en) | Interface circuit | |
| JPS57182120A (en) | Photocoupler device | |
| JPS5483781A (en) | Semiconductor control element | |
| JPS5535556A (en) | Two-wire system alternating current switching contactless switch | |
| JPS5784621A (en) | Alternating current two wire type proximity switch | |
| JPS5523549A (en) | Electric device | |
| JPS5454265A (en) | Semiconductor swtich control circuit for a.c. power | |
| JPS54147449A (en) | Protective circuit | |
| JPS5441168A (en) | Current detector | |
| JPS6488612A (en) | Dc voltage stabilized power source device | |
| JPS5516559A (en) | Two-way voltage selective switching circuit | |
| JPS5557919A (en) | Voltage-current control circuit | |
| JPS5491741A (en) | Control circuit for ac power semiconductor switch | |
| JPS5468954A (en) | Two-line ac contactless switch | |
| JPS54162952A (en) | Two-way voltage selection switching circuit | |
| JPS5636227A (en) | Alternating current two-wire detection switch | |
| JPS6416279A (en) | Starter for single-phase induction motor |