CA2017639A1 - Switching power source means - Google Patents

Switching power source means

Info

Publication number
CA2017639A1
CA2017639A1 CA 2017639 CA2017639A CA2017639A1 CA 2017639 A1 CA2017639 A1 CA 2017639A1 CA 2017639 CA2017639 CA 2017639 CA 2017639 A CA2017639 A CA 2017639A CA 2017639 A1 CA2017639 A1 CA 2017639A1
Authority
CA
Canada
Prior art keywords
pass filter
low
voltage source
switching power
power source
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
CA 2017639
Other languages
French (fr)
Other versions
CA2017639C (en
Inventor
Kosuke Harada
Hiroshi Sakamoto
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.)
Kyushu University NUC
Original Assignee
Kyushu University NUC
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
Priority claimed from JP1234577A external-priority patent/JPH06101930B2/en
Application filed by Kyushu University NUC filed Critical Kyushu University NUC
Publication of CA2017639A1 publication Critical patent/CA2017639A1/en
Application granted granted Critical
Publication of CA2017639C publication Critical patent/CA2017639C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
    • H03K17/081—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit
    • H03K17/0814—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/08142—Modifications for protecting switching circuit against overcurrent or overvoltage without feedback from the output circuit to the control circuit by measures taken in the output circuit in field-effect transistor switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
    • H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
    • H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M7/505—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M7/515—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M7/523—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit
    • H02M7/5233—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit the commutation elements being in a push-pull arrangement
    • H02M7/5236—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit the commutation elements being in a push-pull arrangement in a series push-pull arrangement
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/04—Modifications for accelerating switching
    • H03K17/041—Modifications for accelerating switching without feedback from the output circuit to the control circuit
    • H03K17/0416—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit
    • H03K17/04163—Modifications for accelerating switching without feedback from the output circuit to the control circuit by measures taken in the output circuit in field-effect transistor switches

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)
  • Power Conversion In General (AREA)
  • Inverter Devices (AREA)

Abstract

A switching power source means comprises a DC
voltage source, a first switch element, a low-pass filter connected to the DC voltage source through the first switch element, and a second switch element connected to the input end of the low-pass filter, the switch elements being coupled to the DC voltage source either directly or through a transformer and being operable in such a manner that an output of DC or AC at a desired frequency can be derived across the output end of the low-pass filter. With the invention, an inductor is connected in parallel across the input end of the low-pass filter, to charge and discharge parasitic capacitances of the switch elements, preferably by being provided with a saturable core accompanied by an addi-tional winding supplied with a load current, thus preventing surge currents in the switch elements.
CA 2017639 1989-09-12 1990-05-28 Switching power source means Expired - Fee Related CA2017639C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1234577A JPH06101930B2 (en) 1988-09-16 1989-09-12 Switching power supply
JP1-234,577 1989-09-12

Publications (2)

Publication Number Publication Date
CA2017639A1 true CA2017639A1 (en) 1991-03-12
CA2017639C CA2017639C (en) 1995-07-11

Family

ID=16973196

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2017639 Expired - Fee Related CA2017639C (en) 1989-09-12 1990-05-28 Switching power source means

Country Status (2)

Country Link
CA (1) CA2017639C (en)
DE (1) DE4019158C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107340416B (en) * 2017-08-28 2020-04-14 国网江西省电力公司电力科学研究院 LC tuning external application signal source of power distribution network fault indicator

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT386096B (en) * 1985-11-28 1988-06-27 Schrack Elektronik Ag FLOW CONVERTER WITH A DC INPUT CIRCUIT
US4672303A (en) * 1986-08-28 1987-06-09 International Business Machines Corporation Inductor current control circuit

Also Published As

Publication number Publication date
CA2017639C (en) 1995-07-11
DE4019158A1 (en) 1991-03-21
DE4019158C2 (en) 1994-04-21

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed