JPS63120530U - - Google Patents
Info
- Publication number
- JPS63120530U JPS63120530U JP977987U JP977987U JPS63120530U JP S63120530 U JPS63120530 U JP S63120530U JP 977987 U JP977987 U JP 977987U JP 977987 U JP977987 U JP 977987U JP S63120530 U JPS63120530 U JP S63120530U
- Authority
- JP
- Japan
- Prior art keywords
- output
- circuit
- power supply
- control circuit
- component
- 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 6
- 238000009499 grossing Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Protection Of Static Devices (AREA)
- Dc-Dc Converters (AREA)
Description
第１図は本考案の一実施例を示すブロツク図、
第２図は第１図の動作を説明する図、第３図は従
来の過熱保護回路の一例を示すブロツク回路図で
ある。
１……入力電源、２……コンデンサ、３……ス
イツチング素子、４……インバータ回路、５……
整流平滑回路、６……主制御回路、７……出力垂
下制御回路、８……部品温度センサ、９……周囲
温度センサ、１０……温度検出出力制御回路、１
１……Ａ／Ｄコンバータ、１２……ＲＯＭ、１３
……Ｄ／Ａコンバータ、Ｉ０……電源出力垂下電
流、Ｖｏ……出力電圧、△Ｔ……周囲温度に対し
て許容し得る部品温度上昇。
FIG. 1 is a block diagram showing an embodiment of the present invention.
FIG. 2 is a diagram explaining the operation of FIG. 1, and FIG. 3 is a block circuit diagram showing an example of a conventional overheat protection circuit. 1... Input power supply, 2... Capacitor, 3... Switching element, 4... Inverter circuit, 5...
Rectification smoothing circuit, 6... Main control circuit, 7... Output droop control circuit, 8... Component temperature sensor, 9... Ambient temperature sensor, 10... Temperature detection output control circuit, 1
1...A/D converter, 12...ROM, 13
...D/A converter, I 0 ... power supply output droop current, Vo ... output voltage, △T ... allowable component temperature rise with respect to ambient temperature.
Claims (1)
素子と、インバータ回路と、このインバータ回路
の出力を整流平滑する整流平滑回路と、この整流
平滑回路の出力電圧を用いて前記スイツチング素
子のデユーテイ時間を制御する主制御回路と、前
記整流平滑回路の出力端子に接続する出力電流検
出回路と、この検出電流値が一定値を超えること
によつて前記主制御回路６に出力電圧を遮断ある
いは垂下させるための信号を送る出力垂下制御回
路とからなる出力安定化電源の過熱保護回路にお
いて、前記出力電流検出回路を削除し、出力安定
化電源の温度上昇の限界となる電気回路部品ある
いは機構部品の表面に設置される部品温度センサ
と、周囲温度センサと、これらの温度センサの検
出出力を入力とし、前記出力垂下制御回路に信号
を送出するためのＡ／Ｄコンバータ、ＲＯＭおよ
びＤ／Ａコンバータからなる温度検出出力制御回
路とを設け、前記ＲＯＭに周囲温度および部品温
度に対応して電源の出力電圧を垂下させるプログ
ラムを収納するように構成したことを特徴とする
出力安定化電源の過熱保護回路。 An input power source, an input capacitor, a switching element, an inverter circuit, a rectifier and smoothing circuit that rectifies and smoothes the output of the inverter circuit, and a main unit that controls the duty time of the switching element using the output voltage of the rectifier and smoother. a control circuit, an output current detection circuit connected to the output terminal of the rectifying and smoothing circuit, and a signal for causing the main control circuit 6 to cut off or drop the output voltage when the detected current value exceeds a certain value; In an overheat protection circuit for an output stabilized power supply consisting of a sending output droop control circuit, the output current detection circuit is removed and the output current detection circuit is installed on the surface of an electric circuit component or a mechanical component that is the limit for temperature rise of the output stabilized power supply. Temperature detection output control consisting of a component temperature sensor, an ambient temperature sensor, and an A/D converter, ROM, and D/A converter that receives the detection outputs of these temperature sensors and sends a signal to the output droop control circuit. 1. An overheat protection circuit for an output stabilized power supply, characterized in that the ROM is configured to store a program for drooping the output voltage of the power supply in accordance with ambient temperature and component temperature.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP977987U JPS63120530U (en) | 1987-01-26 | 1987-01-26 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP977987U JPS63120530U (en) | 1987-01-26 | 1987-01-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63120530U true JPS63120530U (en) | 1988-08-04 |
Family
ID=30795416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP977987U Pending JPS63120530U (en) | 1987-01-26 | 1987-01-26 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63120530U (en) |
-
1987
- 1987-01-26 JP JP977987U patent/JPS63120530U/ja active Pending