JPS5748829A - Semiconductor switch circuit - Google Patents
Semiconductor switch circuitInfo
- Publication number
- JPS5748829A JPS5748829A JP12506380A JP12506380A JPS5748829A JP S5748829 A JPS5748829 A JP S5748829A JP 12506380 A JP12506380 A JP 12506380A JP 12506380 A JP12506380 A JP 12506380A JP S5748829 A JPS5748829 A JP S5748829A
- Authority
- JP
- Japan
- Prior art keywords
- fet1
- junction
- voltage
- thyristor
- switch
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/13—Modifications for switching at zero crossing
Landscapes
- Power Conversion In General (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE:To save the power of a simplified trigger circuit and to prevnt malfunction, by selecting a cutoff voltage of a junction FET lower than the power supply voltage. CONSTITUTION:When a power supply voltage is higher than a cutoff voltage of a junction FET1 when a switch 6 is applied, no drain current flows to the junction FET1 through a resistor 3, and even if the switch 6 is applied, no thyristor 5 is turned on. On the other hand, if the power supply voltage is lower than the cutoff voltage of the junction FET1, the drain current flows and the thyristor 5 turns on. That is, the thyristor 5 can be turned on without fail by making the threshold voltage of the FET1 lower, even if the switch 6 is applied at any point of time.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12506380A JPS5748829A (en) | 1980-09-08 | 1980-09-08 | Semiconductor switch circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12506380A JPS5748829A (en) | 1980-09-08 | 1980-09-08 | Semiconductor switch circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5748829A true JPS5748829A (en) | 1982-03-20 |
Family
ID=14900894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12506380A Pending JPS5748829A (en) | 1980-09-08 | 1980-09-08 | Semiconductor switch circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5748829A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58165861A (en) * | 1982-03-29 | 1983-09-30 | 旭化成株式会社 | Adsorbing material for purifying body liquid |
US5187029A (en) * | 1990-05-16 | 1993-02-16 | Programme 3 Patent Holdings | Electrochemical cell |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5133972A (en) * | 1974-09-18 | 1976-03-23 | Hitachi Ltd | HIKARIKETSUGONOKOTAISUITSUCHIKAIRO |
-
1980
- 1980-09-08 JP JP12506380A patent/JPS5748829A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5133972A (en) * | 1974-09-18 | 1976-03-23 | Hitachi Ltd | HIKARIKETSUGONOKOTAISUITSUCHIKAIRO |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58165861A (en) * | 1982-03-29 | 1983-09-30 | 旭化成株式会社 | Adsorbing material for purifying body liquid |
US5187029A (en) * | 1990-05-16 | 1993-02-16 | Programme 3 Patent Holdings | Electrochemical cell |
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