JPH0486088U - - Google Patents
Info
- Publication number
- JPH0486088U JPH0486088U JP12541490U JP12541490U JPH0486088U JP H0486088 U JPH0486088 U JP H0486088U JP 12541490 U JP12541490 U JP 12541490U JP 12541490 U JP12541490 U JP 12541490U JP H0486088 U JPH0486088 U JP H0486088U
- Authority
- JP
- Japan
- Prior art keywords
- sawtooth wave
- voltage
- boosting
- input
- 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
Landscapes
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例に係わる電源制御回
路の構成を示す回路図、第２図は上記電源制御回
路での入力変動信号ａに対する基準鋸波信号ｂと
鋸波信号ｃとの発生状態を示すタイミングチヤー
ト、第３図Ａ及びＢはそれぞれ上記電源制御回路
での異なる入力電圧レベルにおける鋸波信号ｃと
出力変動信号ｄに応じたスイツチングパルスｆの
発生状態を示すタイミングチヤートである。
１１……基準鋸波成形回路、１２……鋸波成形
回路、Ｖｉｎ……電圧入力端子、Ｖｏｕｔ……電
圧出力端子、ＧＮＤ……接地端子、Ｌ……コイル
、Ｄ……ダイオード、Ｃ……コンデンサ、Ｒａ，
Ｒｂ……入力分割抵抗、Ｒｘ，Ｒｙ……出力分割
抵抗、ＣＰ１……入力比較器、ＣＰ２……出力比
較器、Ｔｒ……ＮＰＮトランジスタ。
FIG. 1 is a circuit diagram showing the configuration of a power supply control circuit according to an embodiment of the present invention, and FIG. 2 shows generation of a reference sawtooth signal b and a sawtooth signal c in response to an input fluctuation signal a in the power supply control circuit. Timing charts showing the state, FIGS. 3A and 3B are timing charts showing the generation state of the switching pulse f according to the sawtooth wave signal c and the output fluctuation signal d at different input voltage levels in the power supply control circuit, respectively. . 11... Reference sawtooth wave shaping circuit, 12... Sawtooth shaping circuit, Vin... Voltage input terminal, Vout... Voltage output terminal, GND... Ground terminal, L... Coil, D... Diode, C... Capacitor, Ra,
Rb...Input dividing resistor, Rx, Ry...Output dividing resistor, CP1...Input comparator, CP2...Output comparator, Tr...NPN transistor.
Claims (1)
る基準鋸波発生手段と、 この基準鋸波発生手段による基準鋸波と入力電
圧との比較する入力比較手段と、 上記入力電圧を昇圧する昇圧手段と、 上記入力比較手段による比較結果に応じた波形
状を有する所定電圧の鋸波を発生する鋸波発生手
段と、 この鋸波発生手段による鋸波と上記昇圧手段か
らの出力電圧との比較する出力比較手段と、 この出力比較手段による比較結果に応じて上記
昇圧手段の昇圧状態を制御する昇圧制御手段と、 を具備したことを特徴とする電源制御回路。[Claims for Utility Model Registration] A reference sawtooth wave generating means for generating a sawtooth wave of a predetermined voltage having a predetermined waveform, and an input comparison means for comparing the reference sawtooth wave generated by the reference sawtooth wave generating means with an input voltage. , a boosting means for boosting the input voltage; a sawtooth wave generating means for generating a sawtooth wave of a predetermined voltage having a waveform according to a comparison result by the input comparing means; a sawtooth wave generated by the sawtooth wave generating means and the boosting voltage; A power supply control circuit comprising: output comparison means for comparing the output voltage from the output comparison means; and boost control means for controlling the boosting state of the booster according to the comparison result by the output comparison means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12541490U JPH0486088U (en) | 1990-11-28 | 1990-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12541490U JPH0486088U (en) | 1990-11-28 | 1990-11-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0486088U true JPH0486088U (en) | 1992-07-27 |
Family
ID=31873013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12541490U Pending JPH0486088U (en) | 1990-11-28 | 1990-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0486088U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009268348A (en) * | 2008-04-23 | 2009-11-12 | Honeywell Internatl Inc | Systems and methods for producing substantially constant output voltage in power source boost system |
-
1990
- 1990-11-28 JP JP12541490U patent/JPH0486088U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009268348A (en) * | 2008-04-23 | 2009-11-12 | Honeywell Internatl Inc | Systems and methods for producing substantially constant output voltage in power source boost system |