JPS6086935U - Temperature-pulse width modulation circuit - Google Patents
Temperature-pulse width modulation circuitInfo
- Publication number
- JPS6086935U JPS6086935U JP17821483U JP17821483U JPS6086935U JP S6086935 U JPS6086935 U JP S6086935U JP 17821483 U JP17821483 U JP 17821483U JP 17821483 U JP17821483 U JP 17821483U JP S6086935 U JPS6086935 U JP S6086935U
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- pulse width
- width modulation
- modulation circuit
- thermistor
- 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
- Measuring Temperature Or Quantity Of Heat (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図は本考案の第１の実施例の温度−パルス幅変調回
路を示す回路図、第２図は本考案の第２の実施例の温度
−パルス幅変調回路を示す回路図である。尚、図におい
て、
１・・・充電用トランジスタ、２・・・充電用抵抗、３
、。
・・・サーミスタ、４・・・放電用トランジスタ、５・
・・コンデンサ、６・・・波形成形回路（ＣＭＯＳイン
バータ）、７・・・充電駆動端子（マイクロコンピュー
タ出力）、８・・・ＣＭＯＳインバータの出力端子、９
・・・サーミスタ側計測用駆動端子（マイコン出力）、
１０・・・放電用トランジスタ、１１・・・基準側放電
抵抗、１２・・・基準側計測用放電トランジスタ、１３
・・・マイコン入力端子、１４・・・マイクロコンピュ
ータ本体、１５・・・リセット出力端子、１６・・・基
準側駆動端子（マイコン出力）。FIG. 1 is a circuit diagram showing a temperature-pulse width modulation circuit according to a first embodiment of the present invention, and FIG. 2 is a circuit diagram showing a temperature-pulse width modulation circuit according to a second embodiment of the present invention. In the figure, 1...Charging transistor, 2...Charging resistor, 3
,. ...Thermistor, 4...Discharge transistor, 5.
... Capacitor, 6... Waveform shaping circuit (CMOS inverter), 7... Charging drive terminal (microcomputer output), 8... Output terminal of CMOS inverter, 9
...Thermistor side measurement drive terminal (microcomputer output),
DESCRIPTION OF SYMBOLS 10... Discharge transistor, 11... Reference side discharge resistor, 12... Reference side measurement discharge transistor, 13
...Microcomputer input terminal, 14...Microcomputer main body, 15...Reset output terminal, 16...Reference side drive terminal (microcomputer output).
Claims (1)
ンジスタと充放電されるコンデンサとを備えた温度−パ
ルス幅変調回路において、充放電の駆動を同時に行う手
段を設け、前記充電用抵抗を前記サーミスタの抵抗値よ
り少さく選び、前記コンデンサの両端の電位をしきい値
をもった波形成形回路に接続してなる温度−パルス幅変
調回路。In a temperature-pulse width modulation circuit comprising a charging resistor, a discharging thermistor, a transistor for driving these, and a capacitor to be charged and discharged, a means for simultaneously driving charging and discharging is provided, and the charging resistor is connected to the thermistor. A temperature-pulse width modulation circuit formed by selecting a value smaller than the resistance value and connecting the potential across the capacitor to a waveform shaping circuit having a threshold value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17821483U JPS6086935U (en) | 1983-11-18 | 1983-11-18 | Temperature-pulse width modulation circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17821483U JPS6086935U (en) | 1983-11-18 | 1983-11-18 | Temperature-pulse width modulation circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6086935U true JPS6086935U (en) | 1985-06-14 |
Family
ID=30386981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17821483U Pending JPS6086935U (en) | 1983-11-18 | 1983-11-18 | Temperature-pulse width modulation circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6086935U (en) |
-
1983
- 1983-11-18 JP JP17821483U patent/JPS6086935U/en active Pending
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