JPS59169589U - Pulse width modulation circuit for switching power supplies - Google Patents
Pulse width modulation circuit for switching power suppliesInfo
- Publication number
- JPS59169589U JPS59169589U JP6202483U JP6202483U JPS59169589U JP S59169589 U JPS59169589 U JP S59169589U JP 6202483 U JP6202483 U JP 6202483U JP 6202483 U JP6202483 U JP 6202483U JP S59169589 U JPS59169589 U JP S59169589U
- Authority
- JP
- Japan
- Prior art keywords
- pulse width
- width modulation
- modulation circuit
- switching power
- power supplies
- 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
- Dc-Dc Converters (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図は従来の単安定マルチバイブレータを用いたパル
ス幅変調回路を示す図であり、第２図は間欠発振が可能
な場合の出力電圧とパルス列の関係を示す図であり、第
３図は間欠発振が不可能な場合の出力電圧とパルス列の
関係を示す図である。
第４図は本考案の一実施例を示す図、第５図は単安定マ
ルチバイブレータの動作を示す図、第６図は第４図の各
部波形を示す図である。
１０．１１・・・・・・シュミットトリガインバータ、
７〜９・・・・・・抵抗、３．６・・・・・・コンデン
サ、１２・・・・・・ダイオード、２・・・・・・トラ
ンジスタ、１・・曲発振器、４・・・・・・単安定マル
チバイブレータ、５・・・・・・直流電源。Figure 1 is a diagram showing a pulse width modulation circuit using a conventional monostable multivibrator, Figure 2 is a diagram showing the relationship between output voltage and pulse train when intermittent oscillation is possible, and Figure 3 is a diagram showing the relationship between output voltage and pulse train when intermittent oscillation is possible. FIG. 7 is a diagram showing the relationship between output voltage and pulse train when intermittent oscillation is not possible. FIG. 4 is a diagram showing an embodiment of the present invention, FIG. 5 is a diagram showing the operation of a monostable multivibrator, and FIG. 6 is a diagram showing waveforms of various parts of FIG. 4. 10.11... Schmitt trigger inverter,
7 to 9... Resistor, 3.6... Capacitor, 12... Diode, 2... Transistor, 1... Song oscillator, 4... ... Monostable multivibrator, 5 ... DC power supply.
Claims (1)
おいて、単安定マルチバイブレータのクリア入力にシュ
ミットトリガインバータを接続し、そのしきい値電圧Ｖ
Ｔ）（Ｈ，ＶＴ）（Ｌを利用して、パルスを断続的に出
力する間欠発振動作を可能にすることを特徴とするパル
ス幅変調回路。２In a pulse width modulation circuit using a monostable multivibrator, a Schmitt trigger inverter is connected to the clear input of the monostable multivibrator, and its threshold voltage V
A pulse width modulation circuit that uses T) (H, VT) (L to enable intermittent oscillation operation that outputs pulses intermittently.2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6202483U JPS59169589U (en) | 1983-04-27 | 1983-04-27 | Pulse width modulation circuit for switching power supplies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6202483U JPS59169589U (en) | 1983-04-27 | 1983-04-27 | Pulse width modulation circuit for switching power supplies |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59169589U true JPS59169589U (en) | 1984-11-13 |
Family
ID=30192224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6202483U Pending JPS59169589U (en) | 1983-04-27 | 1983-04-27 | Pulse width modulation circuit for switching power supplies |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59169589U (en) |
-
1983
- 1983-04-27 JP JP6202483U patent/JPS59169589U/en active Pending
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