JPS57137901A - Driving device for electromagnetic operator - Google Patents

Driving device for electromagnetic operator

Info

Publication number
JPS57137901A
JPS57137901A JP2296781A JP2296781A JPS57137901A JP S57137901 A JPS57137901 A JP S57137901A JP 2296781 A JP2296781 A JP 2296781A JP 2296781 A JP2296781 A JP 2296781A JP S57137901 A JPS57137901 A JP S57137901A
Authority
JP
Japan
Prior art keywords
signal
output signal
electromagnetic operator
driving coil
controlling
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
JP2296781A
Other languages
Japanese (ja)
Inventor
Toshiaki Yakura
Kazutoshi Morisada
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.)
Denso Corp
Original Assignee
NipponDenso 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 NipponDenso Co Ltd filed Critical NipponDenso Co Ltd
Priority to JP2296781A priority Critical patent/JPS57137901A/en
Publication of JPS57137901A publication Critical patent/JPS57137901A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B11/00—Automatic controllers
    • G05B11/01—Automatic controllers electric
    • G05B11/26—Automatic controllers electric in which the output signal is a pulse-train
    • G05B11/28—Automatic controllers electric in which the output signal is a pulse-train using pulse-height modulation; using pulse-width modulation

Abstract

PURPOSE:To use a small capacity element as a switching element, by controlling on-and-off of an energizing current supplied to a driving coil of an electromagnetic operator. CONSTITUTION:Voltage across a current detecting resistor 6 is amplified by an amplifier 22, and a value (t) of its output signal is compared and integrated with input voltage (e) for controlling an energizing current of a driving coil 4, by a comparison integrator 15, and an output signal (c) is outputted. An oscillating output (a) of an oscillator 10 is controlled by the output signal (c) of the integrator 15, and an up-and-down variation is given. The signal (c) is compared with set voltage V0 by a comparator 2, and an output signal of said comarator 2 is used as an on-and-off driving signal of an electromagnetic operator. In this way, a mean current being proportional to the signal (c) is supplied to the driving coil 4 of the electromagnetic operator.
JP2296781A 1981-02-20 1981-02-20 Driving device for electromagnetic operator Pending JPS57137901A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2296781A JPS57137901A (en) 1981-02-20 1981-02-20 Driving device for electromagnetic operator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2296781A JPS57137901A (en) 1981-02-20 1981-02-20 Driving device for electromagnetic operator

Publications (1)

Publication Number Publication Date
JPS57137901A true JPS57137901A (en) 1982-08-25

Family

ID=12097345

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2296781A Pending JPS57137901A (en) 1981-02-20 1981-02-20 Driving device for electromagnetic operator

Country Status (1)

Country Link
JP (1) JPS57137901A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5986249A (en) * 1994-10-20 1999-11-16 Matsushita Electric Industrial Co., Ltd. High frequency heating apparatus for providing a uniform heating of an object

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6172348B1 (en) 1994-04-07 2001-01-09 Matsushita Electric Industrial Co., Ltd. High frequency heating apparatus
US5986249A (en) * 1994-10-20 1999-11-16 Matsushita Electric Industrial Co., Ltd. High frequency heating apparatus for providing a uniform heating of an object

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