JPS64683A - High-frequency heating device - Google Patents

High-frequency heating device

Info

Publication number
JPS64683A
JPS64683A JP15514487A JP15514487A JPS64683A JP S64683 A JPS64683 A JP S64683A JP 15514487 A JP15514487 A JP 15514487A JP 15514487 A JP15514487 A JP 15514487A JP S64683 A JPS64683 A JP S64683A
Authority
JP
Japan
Prior art keywords
oscillation
vacuum tube
frequency
period
fettr
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.)
Granted
Application number
JP15514487A
Other languages
Japanese (ja)
Other versions
JP2527563B2 (en
JPH01683A (en
Inventor
Masataka Miyoshi
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.)
DKK Co Ltd
Original Assignee
Denki Kogyo 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 Denki Kogyo Co Ltd filed Critical Denki Kogyo Co Ltd
Priority to JP62155144A priority Critical patent/JP2527563B2/en
Publication of JPH01683A publication Critical patent/JPH01683A/en
Publication of JPS64683A publication Critical patent/JPS64683A/en
Application granted granted Critical
Publication of JP2527563B2 publication Critical patent/JP2527563B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • General Induction Heating (AREA)

Abstract

PURPOSE: To make this device small in its size and small in its cost by controlling high-frequency heating power by such a controlling means that a cutoff bias is applied every arbitrary period to a grid in a vacuum tube for oscillation.
CONSTITUTION: At the time of high-frequency inductive heating, FETTR1 AND TR2 are first switched to be ON states and afterwards ON-OFF switching control is periodically performed on the basis of an output signal coming from an electronic controlling circuit 30. Namely when FETTR1 and TR2 are turned on, a vacuum tube 24 starts oscillation so that a matter to be heated 33 is provided with high-frequency inductive heating. Then the vacuum tube 24 is made repeatedly to be on an oscillation state and an oscillation stop state at a prescribed period on the basis of the output signal coming from the circuit 30. A period on the oscillation stop state can be changed arbitrarily by adjusting a potentiometer 31. Average high-frequency output can be set arbitrarily by changing a duty factor of the oscillation in the vacuum tube 24 in this way. This composition makes it needless to mount tie-transformer even if a power voltage becomes high.
COPYRIGHT: (C)1989,JPO&Japio
JP62155144A 1987-06-22 1987-06-22 High frequency heating equipment Expired - Lifetime JP2527563B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62155144A JP2527563B2 (en) 1987-06-22 1987-06-22 High frequency heating equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62155144A JP2527563B2 (en) 1987-06-22 1987-06-22 High frequency heating equipment

Publications (3)

Publication Number Publication Date
JPH01683A JPH01683A (en) 1989-01-05
JPS64683A true JPS64683A (en) 1989-01-05
JP2527563B2 JP2527563B2 (en) 1996-08-28

Family

ID=15599502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62155144A Expired - Lifetime JP2527563B2 (en) 1987-06-22 1987-06-22 High frequency heating equipment

Country Status (1)

Country Link
JP (1) JP2527563B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0257284U (en) * 1988-10-21 1990-04-25

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0257284U (en) * 1988-10-21 1990-04-25

Also Published As

Publication number Publication date
JP2527563B2 (en) 1996-08-28

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