JPS5459978A - Power supply method in temperature detector of microwave oven - Google Patents

Power supply method in temperature detector of microwave oven

Info

Publication number
JPS5459978A
JPS5459978A JP12695477A JP12695477A JPS5459978A JP S5459978 A JPS5459978 A JP S5459978A JP 12695477 A JP12695477 A JP 12695477A JP 12695477 A JP12695477 A JP 12695477A JP S5459978 A JPS5459978 A JP S5459978A
Authority
JP
Japan
Prior art keywords
temperature detector
antenna
circuit part
microwave
case
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
JP12695477A
Other languages
Japanese (ja)
Inventor
Yoshizo Kumagai
Masumi Yamaguchi
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP12695477A priority Critical patent/JPS5459978A/en
Publication of JPS5459978A publication Critical patent/JPS5459978A/en
Pending legal-status Critical Current

Links

Landscapes

  • Measuring Temperature Or Quantity Of Heat (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)

Abstract

PURPOSE: To simplify the structure without requiring power for temperature detector by receiving microwave delivered from a magnetron with an antenna of heat- sensitive needle to induce microwave voltage so as to use it as the power source for the temperature detector.
CONSTITUTION: An antenna 7 of a temperature detector 5 is affixed to a conductive shaft 19 within a case 18 which is provided coaxially in the center of axial direction of the case. Therefore, when microwaves are received with the antenna 7, a microwave voltage is induced between the joint root 7' of a conductive shaft 19 of the antenna 7 and the case 18. This part becomes and electric energy generating circuit 12. In addition, a wave detecting diode 20 and a protective Zener diode 21 are connected in parallel on the conductive shaft 19, and a through-type capacitor 22 is inserted in series thereto, thus composing a wave detecting circuit part 13. The microwave voltage V1 induced in the circuit part 12 is sent to a constant voltage generating circuit part 14 through the circuit 13, and the circuit part 14 delivers a constant voltage V4, which is used as the driving power for the heat-sensitive element 15 and transmitter 17
COPYRIGHT: (C)1979,JPO&Japio
JP12695477A 1977-10-20 1977-10-20 Power supply method in temperature detector of microwave oven Pending JPS5459978A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12695477A JPS5459978A (en) 1977-10-20 1977-10-20 Power supply method in temperature detector of microwave oven

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12695477A JPS5459978A (en) 1977-10-20 1977-10-20 Power supply method in temperature detector of microwave oven

Publications (1)

Publication Number Publication Date
JPS5459978A true JPS5459978A (en) 1979-05-15

Family

ID=14948000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12695477A Pending JPS5459978A (en) 1977-10-20 1977-10-20 Power supply method in temperature detector of microwave oven

Country Status (1)

Country Link
JP (1) JPS5459978A (en)

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