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 supplyInfo
- 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
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).
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)
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 |
-
1977
- 1977-06-17 IT IT2482577A patent/IT1085241B/en active
- 1977-08-03 NL NL7708563A patent/NL7708563A/en not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
NL7708563A (en) | 1978-12-19 |
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