JPH0158295U - - Google Patents
Info
- Publication number
- JPH0158295U JPH0158295U JP15138087U JP15138087U JPH0158295U JP H0158295 U JPH0158295 U JP H0158295U JP 15138087 U JP15138087 U JP 15138087U JP 15138087 U JP15138087 U JP 15138087U JP H0158295 U JPH0158295 U JP H0158295U
- Authority
- JP
- Japan
- Prior art keywords
- power supply
- auxiliary power
- supply circuit
- circuit
- voltage
- 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
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 6
- 238000009499 grossing Methods 0.000 description 1
Landscapes
- Rectifiers (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案によるＡＣ―ＤＣコンバータの
実施例を示す回路ブロツク図、第２図は従来のＡ
Ｃ―ＤＣコンバータの構成を示す回路ブロツク図
である。第３図は第１図の回路の整流用ブリツジ
ダイオードの全波整流出力波形図、第４図は第２
図の回路の整流用ブリツジダイオードの半波整流
出力波形図である。
１……交流電源、２……整流用ブリツジダイオ
ード、３……平滑コンデンサ、４……コンバータ
、５……抵抗、６……ベース抵抗、７……ドロツ
パトランジスタ、８……ゼナーダイオード、９…
…コンデンサ、１０……制御回路、１１……メイ
ン補助電源回路。
Fig. 1 is a circuit block diagram showing an embodiment of the AC-DC converter according to the present invention, and Fig. 2 is a circuit block diagram showing an embodiment of the AC-DC converter according to the present invention.
FIG. 2 is a circuit block diagram showing the configuration of a C-DC converter. Figure 3 is a full-wave rectified output waveform diagram of the bridge diode for rectification in the circuit of Figure 1, and Figure 4 is the waveform diagram of the rectifying bridge diode in the circuit of Figure 1.
FIG. 3 is a half-wave rectified output waveform diagram of the rectifying bridge diode of the circuit shown in the figure. 1... AC power supply, 2... Bridge diode for rectification, 3... Smoothing capacitor, 4... Converter, 5... Resistor, 6... Base resistor, 7... Dropper transistor, 8... Zener diode ,9...
... Capacitor, 10 ... Control circuit, 11 ... Main auxiliary power supply circuit.
Claims (1)
起動時補助電源回路から出力される直流電圧より
大きな直流電圧を出力するメイン補助電源回路と
、起動時は前記起動時補助電源回路から電力が供
給され、以後は前記メイン補助電源回路より電力
が供給されて、所定の矩形波を出力する制御回路
と、前記全波整流回路からの直流入力を、前記矩
形波によつて制御されるトランジスタによつてス
イツチングし、トランスによつて昇圧した後、整
流して所定の直流出力を得るコンバータとからな
るＡＣ―ＤＣコンバータにおいて、前記起動時補
助電源回路を、前記全波整流回路の半波を出力す
るダイオードの接続点間に、電流制限用抵抗、バ
イアス用抵抗およびゼナーダイオードよりなる直
列回路を接続し、トランジスタのコレクタを前記
抵抗の接続点にベースを前記抵抗とゼナーダイオ
ードの接続点に、カソードを前記制御回路入力の
一端にそれぞれ接続し、前記ゼナーダイオードの
アノードを前記制御回路入力の他端に接続し、前
記制御回路入力間にコンデンサを接続して構成し
たことを特徴とするＡＣ―ＤＣコンバータ。 a full-wave rectifier circuit, a startup auxiliary power supply circuit, a main auxiliary power supply circuit that outputs a DC voltage larger than the DC voltage output from the startup auxiliary power supply circuit, and a main auxiliary power supply circuit that outputs a DC voltage larger than the DC voltage output from the startup auxiliary power supply circuit; After that, power is supplied from the main auxiliary power supply circuit to a control circuit that outputs a predetermined rectangular wave, and a DC input from the full-wave rectifier circuit to a transistor controlled by the rectangular wave. In the AC-DC converter, the converter is configured to switch the voltage, step up the voltage using a transformer, and then rectify it to obtain a predetermined DC output. A series circuit consisting of a current limiting resistor, a bias resistor, and a Zener diode is connected between the connecting points of the diodes, and the collector of the transistor is connected to the connecting point of the resistor and the base is connected to the connecting point of the resistor and the Zener diode. , a cathode is connected to one end of the control circuit input, an anode of the zener diode is connected to the other end of the control circuit input, and a capacitor is connected between the control circuit inputs. AC-DC converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15138087U JPH0158295U (en) | 1987-10-02 | 1987-10-02 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15138087U JPH0158295U (en) | 1987-10-02 | 1987-10-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0158295U true JPH0158295U (en) | 1989-04-12 |
Family
ID=31425374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15138087U Pending JPH0158295U (en) | 1987-10-02 | 1987-10-02 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0158295U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62203562A (en) * | 1986-03-03 | 1987-09-08 | Origin Electric Co Ltd | Power unit |
-
1987
- 1987-10-02 JP JP15138087U patent/JPH0158295U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62203562A (en) * | 1986-03-03 | 1987-09-08 | Origin Electric Co Ltd | Power unit |
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