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Machine translation
1. (WO1981000178) POWER CONSERVING TYPE POWER SUPPLY CIRCUIT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1981/000178    International Application No.:    PCT/JP1979/000176
Publication Date: 22.01.1981 International Filing Date: 03.07.1979
IPC:
H02M 3/338 (2006.01), H03K 3/012 (2006.01), H03K 3/30 (2006.01)
Applicants:
Inventors:
Priority Data:
JP79/00176 03.07.1979 WO
Title (EN) POWER CONSERVING TYPE POWER SUPPLY CIRCUIT
(FR) CIRCUIT D"ALIMENTATION DE PUISSANCE DU TYPE A CONSERVATION D"ENERGIE
Abstract: front page image
(EN)A power supply circuit for discharge type detecting circuits comprising a blocking oscillator (1) and a feedback circuit (2) for varying the oscillation period of the blocking oscillator. A detecting circuit acting as a load is connected to a secondary winding (L2) of a transformer (T) of the blocking oscillator (1). Base biasing for a transistor (Tr1) of the blocking oscillator is controlled by the feedback circuit (2) to which is applied a negative voltage developed in a primary winding (L1) when the transistor (Tr1) is cut off. As a result, since the oscillation period becomes shorter when the detecting circuit is in operation, power is rapidly supplied, whereas less power is supplied due to a longer oscillation period when the detecting circuit is standing by, whereby total power consumption is reduced.
(FR)Un circuit d"alimentation de puissance pour des circuits de detection du type a decharge comprenant un oscillateur de blocage (1) et un circuit de reaction (2) pour varier la periode d"oscillation de l"oscillateur de blocage. Un circuit de detection jouant le role d"une charge est connecte a un enroulement secondaire (L2) d"un transformateur (T) de l"oscillateur de blocage (1). La polarisation de base d"un transistor (Tr1) de l"oscillateur de blocage est commandee par le circuit de reaction (2) auquel est appliquee une tension negative developpee dans un enroulement primaire (L1) lorsque le transistor (Tr1) est coupe. Puisque la periode d"oscillation devient plus courte lorsque le circuit de detection est en fonctionnement, l"alimentation se fait rapidement, et moins de puissance est fournie grace a une periode d"oscillation plus longue lorsque le circuit de detection est au repos, ce qui permet de reduire la consommation d"energie.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)