JPS63273921A - Constant power control system for ac power supply - Google Patents

Constant power control system for ac power supply

Info

Publication number
JPS63273921A
JPS63273921A JP11004587A JP11004587A JPS63273921A JP S63273921 A JPS63273921 A JP S63273921A JP 11004587 A JP11004587 A JP 11004587A JP 11004587 A JP11004587 A JP 11004587A JP S63273921 A JPS63273921 A JP S63273921A
Authority
JP
Japan
Prior art keywords
current
ton
detector
thyristor
power supply
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
JP11004587A
Other languages
Japanese (ja)
Inventor
Seiichi Kumon
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP11004587A priority Critical patent/JPS63273921A/en
Publication of JPS63273921A publication Critical patent/JPS63273921A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To realize the constant power control against the load fluctuation by controlling an AC power supply with the average value obtained by converting the AC current value of the AC power supply into the DC current value via a current detector.
CONSTITUTION: The output signal of a current detector 11 is proportional to the average value IAVE of a rectified waveform of a pass current of a thyristor 3. Then P=EIS(tON/T) and then IAVE=2×(21/2/π)IS×(tON/T) are satisfied, where the voltage of a voltage generating source 1 is referred to as E together with the power consumption of a heater 2 as P, an ON period of the thyristor 3 as tON, a total period as T, and the current effective value of the period tON as IS respectively. Then the power consumption P=1.11IAVE is satisfied and therefore the power consumption P is proportional to the average detection value IAVE of the detector 11 as long as the voltage E of the source 1 is kept constant. Then a comparator 7 compares the output signal of the detector 11 with that of a setting volume 6 and a gate pulse generator 8 controls the thyristor 3. Thus the constant power control of the heater 2 is possible against the load fluctuation.
COPYRIGHT: (C)1988,JPO&Japio
JP11004587A 1987-05-06 1987-05-06 Constant power control system for ac power supply Pending JPS63273921A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11004587A JPS63273921A (en) 1987-05-06 1987-05-06 Constant power control system for ac power supply

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11004587A JPS63273921A (en) 1987-05-06 1987-05-06 Constant power control system for ac power supply

Publications (1)

Publication Number Publication Date
JPS63273921A true JPS63273921A (en) 1988-11-11

Family

ID=14525712

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11004587A Pending JPS63273921A (en) 1987-05-06 1987-05-06 Constant power control system for ac power supply

Country Status (1)

Country Link
JP (1) JPS63273921A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012058951A (en) * 2010-02-06 2012-03-22 Chin-Yi Lin Electricity conditioning device, and power supply control system and method therefor
CN107997601A (en) * 2016-10-31 2018-05-08 芜湖美的厨卫电器制造有限公司 Instant heating type heating unit and its control method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010316B2 (en) * 1978-10-03 1985-03-16 Iwasaki Tsushinki Kk

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6010316B2 (en) * 1978-10-03 1985-03-16 Iwasaki Tsushinki Kk

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012058951A (en) * 2010-02-06 2012-03-22 Chin-Yi Lin Electricity conditioning device, and power supply control system and method therefor
CN107997601A (en) * 2016-10-31 2018-05-08 芜湖美的厨卫电器制造有限公司 Instant heating type heating unit and its control method

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