JPS5557917A - Temperature controller - Google Patents

Temperature controller

Info

Publication number
JPS5557917A
JPS5557917A JP13182778A JP13182778A JPS5557917A JP S5557917 A JPS5557917 A JP S5557917A JP 13182778 A JP13182778 A JP 13182778A JP 13182778 A JP13182778 A JP 13182778A JP S5557917 A JPS5557917 A JP S5557917A
Authority
JP
Japan
Prior art keywords
circuit
angle
relay
phase
scr47
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
JP13182778A
Other languages
Japanese (ja)
Inventor
Hiroshi Horii
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP13182778A priority Critical patent/JPS5557917A/en
Publication of JPS5557917A publication Critical patent/JPS5557917A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Resistance Heating (AREA)
  • Control Of Temperature (AREA)

Abstract

PURPOSE: To make definite full-wave control possible even by using an inductive alternating-current dynamic power control element, by connecting a circuit, which delays a phase by a time equivalent to the arc-extinguishing angle of a current through the power control element, to the input side of a zero pulse generating circuit.
CONSTITUTION: A temperature control circuit for an electric blanket, etc., has additional circuit 75 (including resistance 76 and capacitor C77) which delays a phase by delay angle (θ) (arc-extinguishing angle of SCR47) determined by ratio R/L of inductance L to resistance value R of remote control relay 69 as a load, and consequently an input voltage to sixteen pins of control circuit 41 (including a zero pulse generating circuit) is delayed by angle of (θ). Therefore, a current flowing through secondary winding 692 of transformer relay 69 is lagging a power waveform by angle (θ) to cause unstable ON-OFF operation of its contact 70 in general and normal operation can not be expected, but since SCR47 is triggered through circuit 41 as mentioned above while a phase generated its trigger pulse is delayed by (θ), definite triggering is possible over the whole wave, so that inductive relay 69 will operate smoothly.
COPYRIGHT: (C)1980,JPO&Japio
JP13182778A 1978-10-25 1978-10-25 Temperature controller Pending JPS5557917A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13182778A JPS5557917A (en) 1978-10-25 1978-10-25 Temperature controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13182778A JPS5557917A (en) 1978-10-25 1978-10-25 Temperature controller

Publications (1)

Publication Number Publication Date
JPS5557917A true JPS5557917A (en) 1980-04-30

Family

ID=15067019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13182778A Pending JPS5557917A (en) 1978-10-25 1978-10-25 Temperature controller

Country Status (1)

Country Link
JP (1) JPS5557917A (en)

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