JPS5588580A - Series inverter - Google Patents
Series inverterInfo
- Publication number
- JPS5588580A JPS5588580A JP16330378A JP16330378A JPS5588580A JP S5588580 A JPS5588580 A JP S5588580A JP 16330378 A JP16330378 A JP 16330378A JP 16330378 A JP16330378 A JP 16330378A JP S5588580 A JPS5588580 A JP S5588580A
- Authority
- JP
- Japan
- Prior art keywords
- inverter
- sensed
- current
- voltage
- thyristors
- 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 automatically control oscillating frequency corresponding to load variation and enhance efficiency by sensing load current, by oscillating a variable-frequency oscillator at a frequency by which the commutation of an inverter is possible when the sensed value is less than a specified value.
CONSTITUTION: In the case electric power is supplied to a tank load circuit 7 by an inverter comprising thyristors, the voltage and the current are sensed and applied to a flip-flop circuit 14 by way of wave-shaping circuits 9 and 11 and differential circuits 12 and 13, respectively, thereby a signal having duty depending on the phase difference of the voltage and the current is obtained and applied to a signal selection circuit 16. On the other hand, the input voltage of the inverter is sensed and compared with the output of a peak sensor 21 in a level comparator 20. The output from the comparator 20 is applied to the selection circuit 16, where 2 signals are selectively applied to a variable frequency oscillator 17, thereby the thyristors are controlled. Therefore, oscillation can be readily made even under the loadless condition and the highest-efficiency operation can be always performed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53163303A JPS596151B2 (en) | 1978-12-26 | 1978-12-26 | series inverter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP53163303A JPS596151B2 (en) | 1978-12-26 | 1978-12-26 | series inverter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5588580A true JPS5588580A (en) | 1980-07-04 |
JPS596151B2 JPS596151B2 (en) | 1984-02-09 |
Family
ID=15771256
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP53163303A Expired JPS596151B2 (en) | 1978-12-26 | 1978-12-26 | series inverter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS596151B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60249875A (en) * | 1984-05-24 | 1985-12-10 | Toshiba Corp | Controller of frequency converter |
-
1978
- 1978-12-26 JP JP53163303A patent/JPS596151B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60249875A (en) * | 1984-05-24 | 1985-12-10 | Toshiba Corp | Controller of frequency converter |
Also Published As
Publication number | Publication date |
---|---|
JPS596151B2 (en) | 1984-02-09 |
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