JPS6278082U - - Google Patents
Info
- Publication number
- JPS6278082U JPS6278082U JP16840785U JP16840785U JPS6278082U JP S6278082 U JPS6278082 U JP S6278082U JP 16840785 U JP16840785 U JP 16840785U JP 16840785 U JP16840785 U JP 16840785U JP S6278082 U JPS6278082 U JP S6278082U
- Authority
- JP
- Japan
- Prior art keywords
- energization rate
- detection circuit
- voltage
- rate detection
- comparator
- 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
- 238000001514 detection method Methods 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Power Conversion In General (AREA)
- Control Of Electrical Variables (AREA)
Description
第１図は本考案の第１の実施例を示す回路図、
第２図は通電率検出回路の特性図、第３図は本考
案の第２実施例を示す回路図、第４図は従来例を
示す回路図、第５図は第４図における各部の波形
図である。
１１……交流電源、１３……サイリスタ、１４
……負荷、２１……電圧設定回路、２２……比較
器、２３……ゼロクロス回路、２４……通電率検
出回路、２８……ゲート回路。
FIG. 1 is a circuit diagram showing a first embodiment of the present invention;
Fig. 2 is a characteristic diagram of the energization rate detection circuit, Fig. 3 is a circuit diagram showing a second embodiment of the present invention, Fig. 4 is a circuit diagram showing a conventional example, and Fig. 5 is a waveform of each part in Fig. 4. It is a diagram. 11... AC power supply, 13... Thyristor, 14
... Load, 21 ... Voltage setting circuit, 22 ... Comparator, 23 ... Zero cross circuit, 24 ... Duty ratio detection circuit, 28 ... Gate circuit.
Claims (1)
続された負荷と、前記半導体スイツチング素子に
接続された前記負荷の通電率を検出する通電率検
出回路と、前記交流電源波形のゼロクロス点でパ
ルスを発生するゼロクロス回路と、前記通電率検
出回路の出力電圧と電圧設定回路の設定電圧とを
比較する比較器と、この比較器の出力レベルに応
じて前記交流電源波形のゼロクロス点に同期して
前記半導体スイツチング素子を動作する手段とを
具備したことを特徴とする通電率制御装置。 a load connected to an AC power source via a semiconductor switching element; a energization rate detection circuit that detects the energization rate of the load connected to the semiconductor switching element; and a zero cross that generates a pulse at a zero cross point of the AC power waveform. a comparator that compares the output voltage of the energization rate detection circuit with the set voltage of the voltage setting circuit; and a comparator that compares the output voltage of the energization rate detection circuit with the set voltage of the voltage setting circuit; 1. An energization rate control device comprising means for operating the energization rate control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16840785U JPS6278082U (en) | 1985-10-31 | 1985-10-31 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16840785U JPS6278082U (en) | 1985-10-31 | 1985-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6278082U true JPS6278082U (en) | 1987-05-19 |
Family
ID=31101262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16840785U Pending JPS6278082U (en) | 1985-10-31 | 1985-10-31 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6278082U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981713A (en) * | 1982-10-30 | 1984-05-11 | Nec Corp | Temperature control circuit |
-
1985
- 1985-10-31 JP JP16840785U patent/JPS6278082U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5981713A (en) * | 1982-10-30 | 1984-05-11 | Nec Corp | Temperature control circuit |