JPS6474061A - Multiphase ac rectifier circuit - Google Patents
Multiphase ac rectifier circuitInfo
- Publication number
- JPS6474061A JPS6474061A JP23014287A JP23014287A JPS6474061A JP S6474061 A JPS6474061 A JP S6474061A JP 23014287 A JP23014287 A JP 23014287A JP 23014287 A JP23014287 A JP 23014287A JP S6474061 A JPS6474061 A JP S6474061A
- Authority
- JP
- Japan
- Prior art keywords
- power source
- phase
- multiphase
- semiconductor element
- control
- 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 suppress surge current, by employing a hybrid bridge and making control of any one phase when power source is thrown in. CONSTITUTION:A multiphase AC rectifier circuit comprises a synchronous signal detection circuit 2 for outputting a rectangular signal synchronized with the input to a polyphase AC power source 1, a semiconductor element 5 for controlling the firing angle, a control circuit for making phase control of only one set when power source is thrown in while making control of all phases under a steady state, a diode 4 constituting a hybrid bridge together with the semiconductor element 5 and a smoothing capacitor 6. Only one phase of multiphase AC is operated regardless of the order of phase of power source in order to suppress surge current, and the semiconductor 5 is turned OFF upon occurrence of abnormality. The semiconductor element 5 for controlling all firing angles is turned ON after the voltage of the smoothing capacitor 6 has increased sufficiently.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230142A JP2643176B2 (en) | 1987-09-14 | 1987-09-14 | Multi-phase AC rectifier circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62230142A JP2643176B2 (en) | 1987-09-14 | 1987-09-14 | Multi-phase AC rectifier circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6474061A true JPS6474061A (en) | 1989-03-20 |
JP2643176B2 JP2643176B2 (en) | 1997-08-20 |
Family
ID=16903244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62230142A Expired - Lifetime JP2643176B2 (en) | 1987-09-14 | 1987-09-14 | Multi-phase AC rectifier circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2643176B2 (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50134618U (en) * | 1974-04-19 | 1975-11-06 |
-
1987
- 1987-09-14 JP JP62230142A patent/JP2643176B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50134618U (en) * | 1974-04-19 | 1975-11-06 |
Also Published As
Publication number | Publication date |
---|---|
JP2643176B2 (en) | 1997-08-20 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20080502 |