JPS55146685A - Revolving magnetic field driver - Google Patents

Revolving magnetic field driver

Info

Publication number
JPS55146685A
JPS55146685A JP5196879A JP5196879A JPS55146685A JP S55146685 A JPS55146685 A JP S55146685A JP 5196879 A JP5196879 A JP 5196879A JP 5196879 A JP5196879 A JP 5196879A JP S55146685 A JPS55146685 A JP S55146685A
Authority
JP
Japan
Prior art keywords
switch
period
tilted
magnetic field
operated upward
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
JP5196879A
Other languages
Japanese (ja)
Inventor
Tsunesuke Takahashi
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP5196879A priority Critical patent/JPS55146685A/en
Publication of JPS55146685A publication Critical patent/JPS55146685A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make a drive period longer than usual in the start and stop of a coil current by connecting a series circuit, composed of an auxiliary capacitor and switch, in parallel to a resonance capacitor in a resonant type revolving magnetic field driver.
CONSTITUTION: To resonance capacitor 2 of the resonating circuit consisting of driving coil 1, resonance capacitor 2, charge supplying the 1st switch 3, and ON- OFF switch 4 for coil current I0, the series circuit of auxiliary capacitor 5 and the 3rd switch 6 is attached in parallel. Before the start, the 1st switch is operated upward and at the same time, the 3rd switch is tilted to the right to charge initially capacitors 2 and 5. Next, the 2nd switch 4 is operated upward in half the initial period of coil current I0 and the 3rd switch 6 is tilted to the left to elongate the period of half the period of current I0. At the time of the stop, the 2nd switch 4 is operated upward and the 3rd switch 6 is tilted to the left to prolong the driving period.
COPYRIGHT: (C)1980,JPO&Japio
JP5196879A 1979-04-26 1979-04-26 Revolving magnetic field driver Pending JPS55146685A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5196879A JPS55146685A (en) 1979-04-26 1979-04-26 Revolving magnetic field driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5196879A JPS55146685A (en) 1979-04-26 1979-04-26 Revolving magnetic field driver

Publications (1)

Publication Number Publication Date
JPS55146685A true JPS55146685A (en) 1980-11-15

Family

ID=12901662

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5196879A Pending JPS55146685A (en) 1979-04-26 1979-04-26 Revolving magnetic field driver

Country Status (1)

Country Link
JP (1) JPS55146685A (en)

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