IT1085241B - Semiconductor triac supplying inductive load - has input control circuit with high pass filter connected in parallel with main supply - Google Patents

Semiconductor triac supplying inductive load - has input control circuit with high pass filter connected in parallel with main supply

Info

Publication number
IT1085241B
IT1085241B IT2482577A IT2482577A IT1085241B IT 1085241 B IT1085241 B IT 1085241B IT 2482577 A IT2482577 A IT 2482577A IT 2482577 A IT2482577 A IT 2482577A IT 1085241 B IT1085241 B IT 1085241B
Authority
IT
Italy
Prior art keywords
pass filter
parallel
high pass
circuit
inductive load
Prior art date
Application number
IT2482577A
Other languages
Italian (it)
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Priority to IT2482577A priority Critical patent/IT1085241B/en
Priority to NL7708563A priority patent/NL7708563A/en
Application granted granted Critical
Publication of IT1085241B publication Critical patent/IT1085241B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/13—Modifications for switching at zero crossing
    • H03K17/136—Modifications for switching at zero crossing in thyristor switches

Landscapes

  • Power Conversion In General (AREA)

Abstract

The control circuit is for a controllable semiconductor switch of the triac type, which is connected in series with an inductive load to an alternating voltage supply network. It consists of a pulse shaper with a trigger input and control signal output. There is a detection circuit with an output connected to the trigger input. The input of the detection circuit is connected in parallel to the main supply circuit to the semiconductor switch. The input circuit contains a high pass filter relative to the mains frequency. The high pass filter is also the input of the detector circuit (7) in series with the parallel circuit consisting of a resistor (10) and a capacitor (100).
IT2482577A 1977-06-17 1977-06-17 Semiconductor triac supplying inductive load - has input control circuit with high pass filter connected in parallel with main supply IT1085241B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT2482577A IT1085241B (en) 1977-06-17 1977-06-17 Semiconductor triac supplying inductive load - has input control circuit with high pass filter connected in parallel with main supply
NL7708563A NL7708563A (en) 1977-06-17 1977-08-03 STEERING GEAR FOR CONTROLLABLE SEMICONDUCTOR SWITCH.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2482577A IT1085241B (en) 1977-06-17 1977-06-17 Semiconductor triac supplying inductive load - has input control circuit with high pass filter connected in parallel with main supply

Publications (1)

Publication Number Publication Date
IT1085241B true IT1085241B (en) 1985-05-28

Family

ID=11214846

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2482577A IT1085241B (en) 1977-06-17 1977-06-17 Semiconductor triac supplying inductive load - has input control circuit with high pass filter connected in parallel with main supply

Country Status (2)

Country Link
IT (1) IT1085241B (en)
NL (1) NL7708563A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2499789A1 (en) * 1981-02-06 1982-08-13 Thomson Csf Triac firing control circuit for inductive loads - uses supply and anode voltage sensing to control short gate pulses after zero crossings of voltages for low energy firing
JPS58216406A (en) * 1982-06-09 1983-12-16 Sanmei Denki Kk Solenoid coil driving method and driving circuit thereof

Also Published As

Publication number Publication date
NL7708563A (en) 1978-12-19

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