JPS54119624A - Driving circuit for thyristor inverter - Google Patents
Driving circuit for thyristor inverterInfo
- Publication number
- JPS54119624A JPS54119624A JP2685978A JP2685978A JPS54119624A JP S54119624 A JPS54119624 A JP S54119624A JP 2685978 A JP2685978 A JP 2685978A JP 2685978 A JP2685978 A JP 2685978A JP S54119624 A JPS54119624 A JP S54119624A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- frequency
- starting
- differential amplifier
- output
- 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
- Inverter Devices (AREA)
Abstract
PURPOSE: To facilitate the commutation of a thyristor inverter and perform sure starting thereof, by connecting a bias power source to one input terminal of a differential amplifier and making the frequency of gate signal higher through an oscillator at the starting than in the ordinary run.
CONSTITUTION: When a load 8 having a natural frequency such as an induction heater is driven by the inverter 3, the output of the differential amplifier 17 biased by a negative voltage on a terminal 18 is supplied to an RC circuit consisting of a transistor 19 and a capacitor 20 so that a UJT 21 generates a frequency corresponding to the time constant of the RC circuit to control thyristors 4∼7. At the time of the starting, because the output of the differential amplifier 17 depends on only the negative bias, the frequency of the output pulses is much higher than the resonance frequency of the load 8 and a long turn-off time is established. Then, the inverter goes into balanced oscillation. Therefore, the commutation is facilitated. This results in sure starting of the inverter.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53026859A JPS5854751B2 (en) | 1978-03-09 | 1978-03-09 | Thyristor inverter drive circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53026859A JPS5854751B2 (en) | 1978-03-09 | 1978-03-09 | Thyristor inverter drive circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54119624A true JPS54119624A (en) | 1979-09-17 |
JPS5854751B2 JPS5854751B2 (en) | 1983-12-06 |
Family
ID=12204997
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53026859A Expired JPS5854751B2 (en) | 1978-03-09 | 1978-03-09 | Thyristor inverter drive circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5854751B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR102002016B1 (en) * | 2018-09-28 | 2019-10-21 | 한영테크노켐(주) | Safety operation method and apparatus for refrigerating system using flammable refrigerants |
-
1978
- 1978-03-09 JP JP53026859A patent/JPS5854751B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5854751B2 (en) | 1983-12-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS56126315A (en) | Oscillator | |
JPS5545224A (en) | Filter circuit | |
JPS55109003A (en) | Oscillation circuit | |
JPS54119624A (en) | Driving circuit for thyristor inverter | |
US2728049A (en) | Reactive modulation circuit | |
JPS5528632A (en) | Crystal oscillator circuit unit | |
JPS5496954A (en) | Crystal oscillator | |
KR890011189A (en) | Oscillator circuit | |
JPS6464403A (en) | Oscillation circuit | |
JPS564931A (en) | Driving circuit for active element | |
JPS57124938A (en) | Semiconductor circuit | |
JPS54149490A (en) | Driving circuit of electroluminescence device | |
JPS56143722A (en) | Integrated substrate bias generating circuit | |
JPS55162603A (en) | Crystal oscillation circuit | |
SU815871A1 (en) | Multivibrator | |
JPS56109037A (en) | Driving circuit for field effect transistor | |
SU627571A1 (en) | Controlled phantastron generator | |
JPS56159891A (en) | Semiconductor integrated circuit device | |
JPS54134325A (en) | Frequency converter | |
JPS5683131A (en) | Semiconductor circuit | |
JPS55100735A (en) | Oscillation circuit | |
JPS57212805A (en) | Voltage controlled oscillating circuit | |
JPS5547728A (en) | Oscillator for electronic instrument | |
JPS55147825A (en) | Semiconductor circuit | |
JPS5585129A (en) | Oscillation circuit |