JPH0344709U - - Google Patents
Info
- Publication number
- JPH0344709U JPH0344709U JP10538689U JP10538689U JPH0344709U JP H0344709 U JPH0344709 U JP H0344709U JP 10538689 U JP10538689 U JP 10538689U JP 10538689 U JP10538689 U JP 10538689U JP H0344709 U JPH0344709 U JP H0344709U
- Authority
- JP
- Japan
- Prior art keywords
- heater
- current
- control device
- series
- switching element
- 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 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
Description
第１図は本考案の一実施例にかかるヒータ制御
装置を示す回路図、第２図は第１図の動作を説明
するための波形図である。
２……ヒータ、３……トライアツク、４……接
点、７……サーミスタ、８……ヒータ制御部、９
，１１，１４……抵抗、１０……ダイオードブリ
ツジ回路、２……発光ダイオード、１３……フオ
トトランジスタ、１５……コンデンサ、１６……
サイリスタ、１８……リレー。
FIG. 1 is a circuit diagram showing a heater control device according to an embodiment of the present invention, and FIG. 2 is a waveform diagram for explaining the operation of FIG. 1. 2... Heater, 3... Triack, 4... Contact, 7... Thermistor, 8... Heater control section, 9
, 11, 14...Resistor, 10...Diode bridge circuit, 2...Light emitting diode, 13...Phototransistor, 15...Capacitor, 16...
Thyristor, 18...Relay.
Claims (1)
ーテイを制御することによりヒータ温度を規定値
に制御するヒータ制御装置において、上記スイツ
チング素子に直列接続される常閉接点と、ヒータ
に供給される電流を検出する電流検出手段と、こ
の電流検出手段の検出値が所定時間以上継続して
いるときには上記常閉接点を解放する制御手段を
備えたことを特徴とするヒータ制御装置。 In a heater control device that controls the heater temperature to a specified value by controlling the duty of a switching element connected in series with the heater, a normally closed contact connected in series with the switching element and a current that detects the current supplied to the heater are used. A heater control device comprising a detection means and a control means for opening the normally closed contact when the detected value of the current detection means continues for a predetermined period of time or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10538689U JPH0344709U (en) | 1989-09-11 | 1989-09-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10538689U JPH0344709U (en) | 1989-09-11 | 1989-09-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0344709U true JPH0344709U (en) | 1991-04-25 |
Family
ID=31654150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10538689U Pending JPH0344709U (en) | 1989-09-11 | 1989-09-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0344709U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648415A (en) * | 1987-07-01 | 1989-01-12 | Niigata Engineering Co Ltd | Temperature controller with disconnection/short-circuit detecting mechanism on output side |
-
1989
- 1989-09-11 JP JP10538689U patent/JPH0344709U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS648415A (en) * | 1987-07-01 | 1989-01-12 | Niigata Engineering Co Ltd | Temperature controller with disconnection/short-circuit detecting mechanism on output side |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH0344709U (en) | ||
| JPS6424411U (en) | ||
| JPS6211726B2 (en) | ||
| JPS6211366B2 (en) | ||
| JPS5937613U (en) | Heating element temperature control device | |
| JPH0252131U (en) | ||
| JPS6151682U (en) | ||
| JPH0358375U (en) | ||
| JPS6213682B2 (en) | ||
| JPS6383989U (en) | ||
| JPH0245344U (en) | ||
| JPH0370023U (en) | ||
| JPH01179392U (en) | ||
| JPS61140629U (en) | ||
| JPS6133205B2 (en) | ||
| JPH03114020U (en) | ||
| JPS6160310U (en) | ||
| JPS63131090U (en) | ||
| JPS5824688U (en) | Refrigerator dew prevention device | |
| JPH0449097U (en) | ||
| JPS61143212U (en) | ||
| JPS6232499U (en) | ||
| JPS624091U (en) | ||
| JPH0486049U (en) | ||
| JPS5842667U (en) | Current value detection circuit |