JPS6445092A - Heater control device - Google Patents

Heater control device

Info

Publication number
JPS6445092A
JPS6445092A JP19988087A JP19988087A JPS6445092A JP S6445092 A JPS6445092 A JP S6445092A JP 19988087 A JP19988087 A JP 19988087A JP 19988087 A JP19988087 A JP 19988087A JP S6445092 A JPS6445092 A JP S6445092A
Authority
JP
Japan
Prior art keywords
signal
input signal
heater control
capacitor
heater
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
Application number
JP19988087A
Other languages
Japanese (ja)
Inventor
Osamu Miyata
Yoji Oki
Katsunori Kawano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stanley Electric Co Ltd
Original Assignee
Stanley Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Stanley Electric Co Ltd filed Critical Stanley Electric Co Ltd
Priority to JP19988087A priority Critical patent/JPS6445092A/en
Publication of JPS6445092A publication Critical patent/JPS6445092A/en
Pending legal-status Critical Current

Links

Landscapes

  • Discharge-Lamp Control Circuits And Pulse- Feed Circuits (AREA)
  • Control Of Temperature (AREA)

Abstract

PURPOSE:To have stable heater control by installing a temp. sensor element at a heater, furnishing comparators to compare the signal given by the sensor element with an oscillation signal for dimming, and by controlling the heater with a heater control signal given by these comparator. CONSTITUTION:After turning on the power, the reset input signal of FF13 will be at L while the set input signal at H, and the Q output sill become L with a transistor Q1 being off. When a capacitor C1 is charged, the reset input signal will be at H while the set input signal at L, and the Q output will become H with the transistor Q1 being on. At this time, the potential at the point A becomes L and the capacitor C1 will be discharged. When the capacitor C1 is discharged, the reset input signal becomes again at L while the set input signal at H, and this cycle is repeated to oscillate the circuit. This charge/ discharge signal at the point A oscillated is fed in comparators 14, 16 as a dimming oscillation signal to undergo comparison with applicable signals so as to provide a dimming signal an a heater control signal.
JP19988087A 1987-08-12 1987-08-12 Heater control device Pending JPS6445092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19988087A JPS6445092A (en) 1987-08-12 1987-08-12 Heater control device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19988087A JPS6445092A (en) 1987-08-12 1987-08-12 Heater control device

Publications (1)

Publication Number Publication Date
JPS6445092A true JPS6445092A (en) 1989-02-17

Family

ID=16415149

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19988087A Pending JPS6445092A (en) 1987-08-12 1987-08-12 Heater control device

Country Status (1)

Country Link
JP (1) JPS6445092A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0729694A4 (en) * 1993-11-03 1997-02-26 Science Applic Int Corp High efficiency uv backlighting system for rear illumination of electronic display devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS529988A (en) * 1975-07-11 1977-01-25 Canon Inc Lamp controlling device
JPS5780698A (en) * 1980-11-10 1982-05-20 Ichikoh Industries Ltd Circuit for firing automotive discharge lamp

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS529988A (en) * 1975-07-11 1977-01-25 Canon Inc Lamp controlling device
JPS5780698A (en) * 1980-11-10 1982-05-20 Ichikoh Industries Ltd Circuit for firing automotive discharge lamp

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0729694A4 (en) * 1993-11-03 1997-02-26 Science Applic Int Corp High efficiency uv backlighting system for rear illumination of electronic display devices

Similar Documents

Publication Publication Date Title
JPS6472603A (en) Oscillating circuit
JPS55143833A (en) Time controlling unit
JPS55143841A (en) Oscillating circuit
JPS5623025A (en) Circuit device
JPS54157360A (en) Defrosting control system
JPS5512203A (en) Electromagnetic pump
JPS6439235A (en) Battery charging equipment
JPS57176825A (en) Monostable multivibrator circuit
JPS5473220A (en) Controller
JPS576582A (en) Controller for speed of motor
JPS6489578A (en) Laser power supply device
JPS55607A (en) Frequency discriminator
JPS6416022A (en) Bus driving circuit
JPS56168232A (en) Temperature controlling circuit
JPS57127329A (en) Multivibrator circuit
JPS567523A (en) Off delay timer
KR930008275B1 (en) Variable delay time control circuit of vcr
JPS57212824A (en) Integration type a/d converter
JPS55123238A (en) Power supply system of logic circuit
JPS558101A (en) Tracking oscillator
JPS5685886A (en) Atomic oscillator
JPS6424506A (en) Pulse delay circuit
JPS6439238A (en) Controller for charging equipment
JPS55140185A (en) Voltage controlling circuit of electronic clock
JPS5619386A (en) Oscillator circuit for controlling inverter