JPH01134982U - - Google Patents
Info
- Publication number
- JPH01134982U JPH01134982U JP1988030109U JP3010988U JPH01134982U JP H01134982 U JPH01134982 U JP H01134982U JP 1988030109 U JP1988030109 U JP 1988030109U JP 3010988 U JP3010988 U JP 3010988U JP H01134982 U JPH01134982 U JP H01134982U
- Authority
- JP
- Japan
- Prior art keywords
- master
- operational amplifier
- circuit
- input terminal
- output
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Power Conversion In General (AREA)
Description
第１図は本考案の一実施例によるマスタースレ
ーブ回路の構成を示す図、第２図は第１図に示す
各部の動作波形図、第３図は従来のマスタースレ
ーブ回路の構成を示す図である。
１，７，１５，１６：ＰＷＭ用ＩＣ、２，１８
：三角波入力端子、３：バイアス変換回路、４：
積分回路、５，６：電源電圧、８，１７：三角波
出力端子、９：オペアンプ、１０：基準電圧、１
１：トランジスタ、１２：フオトカプラ、１３，
１４：抵抗。
FIG. 1 is a diagram showing the configuration of a master-slave circuit according to an embodiment of the present invention, FIG. 2 is an operation waveform diagram of each part shown in FIG. 1, and FIG. 3 is a diagram showing the configuration of a conventional master-slave circuit. be. 1, 7, 15, 16: PWM IC, 2, 18
: Triangular wave input terminal, 3: Bias conversion circuit, 4:
Integrating circuit, 5, 6: power supply voltage, 8, 17: triangular wave output terminal, 9: operational amplifier, 10: reference voltage, 1
1: Transistor, 12: Photocoupler, 13,
14: Resistance.
Claims (1)
うマスタースレーブ回路において、 第１のＰＷＭ用ＩＣの三角波出力端子をオペア
ンプの反転入力端子に接続し、基準電圧を前記オ
ペアンプの非反転入力端子へ供給し、前記オペア
ンプの出力をフオトカプラを介して積分回路に入
力し、前記積分回路の出力をバイアス変換回路を
介して第２のＰＷＭ用ＩＣの三角波入力端子に接
続することを特徴とするマスタースレーブ回路。[Claims for Utility Model Registration] In a master-slave circuit that performs master-slave operation between power supplies with different potentials, the triangular wave output terminal of the first PWM IC is connected to the inverting input terminal of an operational amplifier, and the reference voltage is applied to the non-converting input terminal of the operational amplifier. The output of the operational amplifier is input to an integrating circuit via a photocoupler, and the output of the integrating circuit is connected to a triangular wave input terminal of a second PWM IC via a bias conversion circuit. master-slave circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988030109U JPH01134982U (en) | 1988-03-07 | 1988-03-07 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988030109U JPH01134982U (en) | 1988-03-07 | 1988-03-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01134982U true JPH01134982U (en) | 1989-09-14 |
Family
ID=31254881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988030109U Pending JPH01134982U (en) | 1988-03-07 | 1988-03-07 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01134982U (en) |
-
1988
- 1988-03-07 JP JP1988030109U patent/JPH01134982U/ja active Pending