Method of uninterrupted operation of a current supply...

H - Electricity – 02 – J

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320/4, 323/5

H02J 9/06 (2006.01) H02M 3/335 (2006.01)

Patent

CA 1157090

ABSTRACT A method of uninterrupted operation of a current supply installation, which via a charger in the form of a primary- switched rectifier with a transformer (16) charges a battery (28) and carries a load (30) when the operating voltage is available to a sufficient extent, but for a voltage drop or break in voltage automatically disconnects the battery from the charger and instead supplies the load with voltage from the battery. The battery voltage is hereby chopped into square wave form and transformed up via the secondary side (20) of the transformer (16) to the voltage required for the load (30). A diode (38) is suitably connected between the load (30) and battery (28), for allowing the battery voltage to act directly on the load as long as this voltage is sufficiently high. The invention also relates to a current supply installation according to the method, in which the chopping is performed with the aid of one of two square wave generators. (Fig. 2)

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