JPS5457627A - Frequency converter - Google Patents
Frequency converterInfo
- Publication number
- JPS5457627A JPS5457627A JP12552577A JP12552577A JPS5457627A JP S5457627 A JPS5457627 A JP S5457627A JP 12552577 A JP12552577 A JP 12552577A JP 12552577 A JP12552577 A JP 12552577A JP S5457627 A JPS5457627 A JP S5457627A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- thyristor
- gate
- pulse
- signal
- 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
Abstract
PURPOSE: To reduce gate loss of thyristor, by supplying, to the thyristor, a gate signal of suitable pulse width in accrdance with a low frequency AC voltage polarity.
CONSTITUTION: A frequency converter circuit, that comprises a thyristor 41, 42 and series resonance circuit 2, 3, and a control circuit are provided. The control circuit comprises gate drive circuits 14a, 14bm for conducting the thyristor, a circuit 8, for forming a first pulse start timing, a circuit 11, for a first pulse stop timing, and a multiplexor circuit 13, for outputting a signal, with an output signal of each pulse former circuit 10, 12 inputted, to the gate drive circuit in accordance with a low frequency palenity. In this way, a gate pulse signal of suitable width in accordance with a polarity of low frequency AC power source can be supplied to the thyristor, and a power consumption can be also olightened in the power trnsformer simultaneously with a gate loss of the thyristor reduced
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12552577A JPS5850518B2 (en) | 1977-10-18 | 1977-10-18 | frequency converter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12552577A JPS5850518B2 (en) | 1977-10-18 | 1977-10-18 | frequency converter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5457627A true JPS5457627A (en) | 1979-05-09 |
JPS5850518B2 JPS5850518B2 (en) | 1983-11-10 |
Family
ID=14912318
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12552577A Expired JPS5850518B2 (en) | 1977-10-18 | 1977-10-18 | frequency converter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5850518B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03130618U (en) * | 1990-04-11 | 1991-12-27 |
-
1977
- 1977-10-18 JP JP12552577A patent/JPS5850518B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5850518B2 (en) | 1983-11-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5292560A (en) | Switch box drive pulse width control circuit for electronic clocks | |
ES481473A1 (en) | Regulated dual DC power supply | |
JPS5457627A (en) | Frequency converter | |
JPS5217758A (en) | Pulse generator circuit | |
JPS52141548A (en) | Scanning pulse generator | |
JPS5347727A (en) | Power circuit | |
JPS5441660A (en) | Timer | |
JPS5528633A (en) | Crystal oscillation circuit unit | |
JPS5248917A (en) | Power source unit | |
JPS5234651A (en) | Pulse generator | |
JPS5426423A (en) | Starting controller for parallel resonance inverter | |
JPS55100747A (en) | Operating-power reduction control system | |
JPS5698398A (en) | Driving circuit of motor | |
JPS5527630A (en) | Device to drive plunger | |
JPS53109152A (en) | Dc power control circuit | |
JPS5373928A (en) | Timing pulse generating circuit | |
JPS5663272A (en) | Automatic test method for fluctuation of alternating current input power source | |
JPS5377454A (en) | Oscillator circuit | |
JPS51128751A (en) | Method of induction heating for range | |
JPS57189222A (en) | Alternating current control signal receiving circuit | |
JPS5412435A (en) | Power source circuit | |
JPS51138820A (en) | Inverter controlling device | |
JPS5389935A (en) | Frequency converter | |
JPS5339452A (en) | Pulse width control circuit in power source equipment | |
JPS52116059A (en) | Pulse circuit |