Variable control device

The invention relates to a variable control device (10) connected in series with an electrical load (12) to be controlled on one phase of an AC electrical circuit. The control device (10) comprises: two power switches (J1, J2), of the normally conducting JFET type, the gates (G) of which are connect...

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Bibliographic Details
Main Authors CARCOUET SEBASTIEN, ECRABEY JACQUES
Format Patent
LanguageChinese
English
Published 24.11.2010
Subjects
APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS
CONTROL OR REGULATION THEREOF
CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
GENERATION
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Summary:The invention relates to a variable control device (10) connected in series with an electrical load (12) to be controlled on one phase of an AC electrical circuit. The control device (10) comprises: two power switches (J1, J2), of the normally conducting JFET type, the gates (G) of which are connected together; two bias resistors (R1, R2), each bias resistor (R1, R2) being connected between the gate (G) and the source (S) of one of the power switches (J1, J2); and two control switches (M1, M2) controlled by a common control signal, each control switch (M1, M2) being connected in parallel withone of the bias resistors (R1, R2). Application to a dimmer.
Bibliography:Application Number: CN200880120798