Uninterruptible power supply method
First Claim
1. A method of providing an uninterruptible supply of power to a load during an ordinary times mode and in an emergency mode, said method comprising, during the ordinary times mode, the steps of:
- modulating commercial AC input power into high-frequency AC power;
applying the high-frequency AC power to a primary winding of a high-frequency transformer having the primary winding, a secondary winding and a tertiary winding;
demodulating high-frequency AC power induced in the secondary winding from the primary winding into AC output power which is approximately equivalent to the commercial AC input power and has a waveform similar to that of the commercial AC input power;
supplying the AC output power to the load;
rectifying high-frequency AC power induced in the tertiary winding from the primary winding into DC power; and
charging a storage battery with the DC power; and
said method further comprising, during the emergency mode, the steps of;
converting DC power from the storage battery into high-frequency AC power;
applying the high-frequency AC power to the tertiary winding;
averaging high-frequency AC power induced in the secondary winding from the tertiary winding, thereby producing AC output power; and
supplying the AC output power to the load.
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Accused Products
Abstract
A method for providing an uninterruptible power supply to a load both at ordinary times and in an emergency. At ordinary times, commercial AC input power is modulated into high-frequency AC power, which is then applied to a primary winding of a high-frequency transformer having the primary winding, a secondary winding and a tertiary winding. High-frequency AC power induced in the secondary winding from the primary winding is demodulated into AC output power, which is then supplied to the load. High-frequency AC power induced in the tertiary winding from the primary winding is rectified into DC power, with which a storage battery is charged. In an emergency, DC power from the storage battery is converted into high-frequency AC power, which is then applied to the tertiary winding. High-frequency AC power induced in the secondary winding from the tertiary winding is averaged, thereby producing AC output power, then the AC output power is supplied to the load.
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Citations
35 Claims
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1. A method of providing an uninterruptible supply of power to a load during an ordinary times mode and in an emergency mode, said method comprising, during the ordinary times mode, the steps of:
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modulating commercial AC input power into high-frequency AC power; applying the high-frequency AC power to a primary winding of a high-frequency transformer having the primary winding, a secondary winding and a tertiary winding; demodulating high-frequency AC power induced in the secondary winding from the primary winding into AC output power which is approximately equivalent to the commercial AC input power and has a waveform similar to that of the commercial AC input power; supplying the AC output power to the load; rectifying high-frequency AC power induced in the tertiary winding from the primary winding into DC power; and charging a storage battery with the DC power; and
said method further comprising, during the emergency mode, the steps of;converting DC power from the storage battery into high-frequency AC power; applying the high-frequency AC power to the tertiary winding; averaging high-frequency AC power induced in the secondary winding from the tertiary winding, thereby producing AC output power; and supplying the AC output power to the load. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35)
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Specification