Power supply device
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorsIn Wha Jeong, Bum Seok Suh, Hyo Jin Lee
Life of this patent
Estimating the term…
Abstract
There is provided a power supply device including an alternating current (AC) power supply unit supplying a first primary current in a positive half cycle and supplying a second primary current in a negative half cycle; a transformer unit including a first transformer and a second transformer; a main switch unit including a first main switch and a second main switch; an auxiliary switch unit including a first auxiliary switch and a second auxiliary switch; an auxiliary inductor unit including a first auxiliary inductor and a second auxiliary inductor; and a path providing unit providing a conduction path based on power supplied from the AC power supply unit.
Claims20
A power supply device, comprising:
- an alternating current (AC) power supply unit supplying a first primary current in a positive half cycle and supplying a second primary current in a negative half cycle;
- a transformer unit including a first transformer transforming the first primary current from the AC power supply unit into a first secondary current, and a second transformer transforming the second primary current from the AC power supply unit into a second secondary current;
- a main switch unit including a first main switch controlling the first primary current flowing through a primary winding of the first transformer, and a second main switch controlling the second primary current flowing through a primary winding of the second transformer;
- an auxiliary switch unit including a first auxiliary switch forming a transfer path for surplus power present before the first main switch is turned on, and a second auxiliary switch forming a transfer path for surplus power present before the second main switch is turned on;
- an auxiliary inductor unit including a first auxiliary inductor adjusting an amount of current flowing through the first auxiliary switch during a switching operation of the first auxiliary switch, and a second auxiliary inductor adjusting an amount of current flowing through the second auxiliary switch during a switching operation of the second auxiliary switch;
- and
- a path providing unit providing a conduction path based on power supplied from the AC power supply unit.
A power supply device, comprising:
- an alternating current (AC) power supply unit supplying a first primary current in a positive half cycle and supplying a second primary current in a negative half cycle;
- a first transformer connected between a positive terminal of the AC power supply unit and transforming the first primary current from the AC power supply unit into a first secondary current;
- a second transformer connected to a negative terminal of the AC power supply unit and transforming the second primary current from the AC power supply unit into a second secondary current;
- a first main switch controlling the first primary current flowing through a primary winding of the first transformer;
- a second main switch performing a switching operation with a predetermined phase difference with the first main switch and controlling the second primary current flowing through a primary winding of the second transformer;
- an auxiliary switch unit including a first auxiliary switch forming a transfer path for surplus power present before the first main switch is turned on, and a second auxiliary switch forming a transfer path for surplus power present before the second main switch is turned on;
- an auxiliary inductor unit including a first auxiliary inductor adjusting an amount of current flowing through the first auxiliary switch during a switching operation of the first auxiliary switch, and a second auxiliary inductor adjusting an amount of current flowing through the second auxiliary switch during a switching operation of the second auxiliary switch;
- and
- a path providing unit providing a conduction path based on power supplied from the AC power supply unit.
Dependencies are inferred from the claim text.