Uninterruptible power supply and a starting method

Details Uninterruptible power supply and a starting method Uninterruptible power supply and a starting method

1984-03-23

1985-12-31

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 87, H02J 906

Patent

active

045623570

ABSTRACT:
An uninterruptible power supply including a controlled rectifier for receiving a first AC voltage and for converting the first AC power voltage into a first DC output voltage, a battery for supplying a second DC output voltage, a voltage step-up chopper connected to receive the first DC output voltage and the second DC output voltage as a DC input voltage for stepping up the DC input voltage to produce a stepped-up voltage, and an inverter connected to receive the stepped-up voltage for converting the stepped-up voltage into a second AC voltage which is the AC output of the uninterruptible power supply. Additionally, a method for starting the uninterruptible power supply is disclosed.

REFERENCES:
patent: 4065711 (1977-12-01), Kawabata
patent: 4293904 (1981-10-01), Brooks et al.
patent: 4322787 (1982-03-01), Kraus
patent: 4426587 (1984-01-01), Nouet
patent: 4506766 (1985-03-01), Watanabe
Siemens Review XL No. 8, "Uninterruptible Power Supplies with Inverters": Wilhelm Forstbauer: 1973.

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