JPS54109124A - Transistor drive circuit - Google Patents
Transistor drive circuitInfo
- Publication number
- JPS54109124A JPS54109124A JP1685478A JP1685478A JPS54109124A JP S54109124 A JPS54109124 A JP S54109124A JP 1685478 A JP1685478 A JP 1685478A JP 1685478 A JP1685478 A JP 1685478A JP S54109124 A JPS54109124 A JP S54109124A
- Authority
- JP
- Japan
- Prior art keywords
- transistor
- capacitor
- discharge
- diode
- current transformer
- 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
- Dc-Dc Converters (AREA)
- Electronic Switches (AREA)
Abstract
PURPOSE: To prevent reignition of the transistor during a discharge of the capacitor by inserting a diode in parallel with the charge-discharge capacitor of the drive circuit which contains the transistor chopper circuit and the current transformer.
CONSTITUTION: The transistors 22, 23 are turned on or off by the output of oscillator 9 controlled by the voltage control circuit 16, current of the primary coil 6 of the current transformer 4 is controlled by charge-discharge of the capacitor 21 to turn on or off the chopper transistor 3, and the load 2 is driven. At this time,the diode 25 is provided in parallel with the capacitor 21, the primary coil 6 is shorted with the transistor 23 and the diode 25 in a discharge of the capacitor 21. Thus, since a positive bias is not given again by exciting energy remained in the current transformer 4 when the transistor 3 is turned off, the reignition can be surely prevented.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1685478A JPS54109124A (en) | 1978-02-15 | 1978-02-15 | Transistor drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1685478A JPS54109124A (en) | 1978-02-15 | 1978-02-15 | Transistor drive circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54109124A true JPS54109124A (en) | 1979-08-27 |
Family
ID=11927794
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1685478A Pending JPS54109124A (en) | 1978-02-15 | 1978-02-15 | Transistor drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54109124A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670269A (en) * | 1979-11-14 | 1981-06-12 | Fujitsu Ltd | Transistorized drive circuit |
JPS61293167A (en) * | 1985-05-17 | 1986-12-23 | Fujitsu Ltd | Mos-fet drive circuit |
-
1978
- 1978-02-15 JP JP1685478A patent/JPS54109124A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5670269A (en) * | 1979-11-14 | 1981-06-12 | Fujitsu Ltd | Transistorized drive circuit |
JPS61293167A (en) * | 1985-05-17 | 1986-12-23 | Fujitsu Ltd | Mos-fet drive circuit |
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