JPS6412494A - High-frequency heating device - Google Patents
High-frequency heating deviceInfo
- Publication number
- JPS6412494A JPS6412494A JP16805987A JP16805987A JPS6412494A JP S6412494 A JPS6412494 A JP S6412494A JP 16805987 A JP16805987 A JP 16805987A JP 16805987 A JP16805987 A JP 16805987A JP S6412494 A JPS6412494 A JP S6412494A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- phase
- value
- heating device
- phase angle
- 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
Landscapes
- Control Of High-Frequency Heating Circuits (AREA)
Abstract
PURPOSE:To obtain a high frequency heating device in which a rush current is reduced so that reliability and endurance in an interrupting relay are much improved, by finding an optimum switching phase based on a voltage phase obtained in a voltage detection means and on a current value and a phase obtained in a current detection means. CONSTITUTION:A secondary voltage phase of a low-voltage transformer 13 is taken by a supervisory means 15. When this phase is identified with an optimum switching phase of an interrupting relay, a relay B5 is turned on. An initial value of a rush current at that time is compared with a present value. When the present value is larger than the initial value, it is compared with a predetermined maximum rush current value. When the maximum current value is larger than the present value, a switching phase angle is made to lead by 10 deg.. Repetitive operations are performed to find an optimum phase angle of the relay B5. Even if an operation time of the relay B5 is dispersed, the optimum switching phase angle can be found accordingly. When this phase angle is memorized in a non-volatile memory or the like, the rush current can be reduced at any time in use of this high-frequency heating device, so that reliability and endurance in the interrupting relay are much improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16805987A JPS6412494A (en) | 1987-07-06 | 1987-07-06 | High-frequency heating device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16805987A JPS6412494A (en) | 1987-07-06 | 1987-07-06 | High-frequency heating device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6412494A true JPS6412494A (en) | 1989-01-17 |
Family
ID=15861064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16805987A Pending JPS6412494A (en) | 1987-07-06 | 1987-07-06 | High-frequency heating device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6412494A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03167779A (en) * | 1989-11-28 | 1991-07-19 | Toshiba Corp | Microwave oven |
DE19814156C1 (en) * | 1998-03-30 | 1999-11-25 | Siemens Ag | Module for SMD assembly |
-
1987
- 1987-07-06 JP JP16805987A patent/JPS6412494A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03167779A (en) * | 1989-11-28 | 1991-07-19 | Toshiba Corp | Microwave oven |
DE19814156C1 (en) * | 1998-03-30 | 1999-11-25 | Siemens Ag | Module for SMD assembly |
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