JPS59185994U - phase control circuit - Google Patents
phase control circuitInfo
- Publication number
- JPS59185994U JPS59185994U JP1983078872U JP7887283U JPS59185994U JP S59185994 U JPS59185994 U JP S59185994U JP 1983078872 U JP1983078872 U JP 1983078872U JP 7887283 U JP7887283 U JP 7887283U JP S59185994 U JPS59185994 U JP S59185994U
- Authority
- JP
- Japan
- Prior art keywords
- commercial
- pulse
- switches
- circuit
- phase 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.)
- Pending
Links
Landscapes
- Power Conversion In General (AREA)
- Control Of Electrical Variables (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は商用電源と同期運転するＣＶＣＦ装置な −ど
に用いる位相制御回路の従来例を示すブロック図、第２
図は本考案に係る位相制御回路の一実施例を示すブロッ
ク図である。
１・・・・・・商用パルス回路、２・・・・・・切換回
路、３・・・・・・ＰＬＬ、 ４・・・・・・内部発振
器、５・・・・・・駆動回路、６・・・・・・ナンド回
路、７・・・・・・フリップフロップ。Figure 1 is a block diagram showing a conventional example of a phase control circuit used in a CVCF device that operates in synchronization with a commercial power supply.
The figure is a block diagram showing one embodiment of the phase control circuit according to the present invention. 1... Commercial pulse circuit, 2... Switching circuit, 3... PLL, 4... Internal oscillator, 5... Drive circuit, 6...NAND circuit, 7...Flip-flop.
Claims (1)
、内部発振器と、商用パルスまたは内部発振パルスを入
力とし、これに同期した位相制御信号を生じる位相固定
ループと、この位相固定ループの入力側に位置して商用
パルスと内部発振パルスの切換えを行う切換回路と、゛
商用電源の停電時には前記切換回路を前記内部発振器側
に切換え、商用電源の回復時にはその電源回復と、商用
パルスと内部発振パルスの一致とを条件に前記商用パル
ス回路側′に切換える駆動部とを備えてなる位相制御回
路。A commercial pulse circuit that generates pulses synchronized with the commercial power supply, an internal oscillator, a phase-locked loop that receives the commercial pulse or internal oscillation pulse and generates a phase control signal synchronized with this, and the input side of this phase-locked loop. a switching circuit that switches between commercial pulses and internal oscillation pulses, and a switch circuit that switches the switching circuit to the internal oscillator side in the event of a commercial power outage, and when the commercial power is restored, switches between the commercial pulse and the internal oscillation pulse. and a drive section that switches to the commercial pulse circuit side' on the condition that they match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983078872U JPS59185994U (en) | 1983-05-25 | 1983-05-25 | phase control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1983078872U JPS59185994U (en) | 1983-05-25 | 1983-05-25 | phase control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59185994U true JPS59185994U (en) | 1984-12-10 |
Family
ID=30208875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1983078872U Pending JPS59185994U (en) | 1983-05-25 | 1983-05-25 | phase control circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59185994U (en) |
-
1983
- 1983-05-25 JP JP1983078872U patent/JPS59185994U/en active Pending
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