Power supply device

Patent metadata

Field	Value
Publication number	US-2015115926-A1
Application number	US-201414163888-A
Country	US
Kind code	A1
Filing date	Jan 24, 2014
Priority date	Oct 31, 2013
Publication date	Apr 30, 2015
Grant date	—

Abstract

There is provided a power supply device including: a SEPIC/Zeta converter having an energy storage unit; and a power transmitting unit transmitting the energy stored in the SEPIC/Zeta converter to a load stage.

First claim

What is claimed is:

1 . A power supply device, comprising:
a SEPIC/Zeta converter having an energy storage unit; and a power transmitting unit transmitting the energy stored in an energy storage unit of the SEPIC/Zeta converter to a load stage.

2 . The power supply device of claim 1 , wherein the SEPIC/Zeta converter includes:
a first inductor connected between a first node and a second node; a first switch connected between the second node and a ground so as to be switched according to a first switching signal; a separation capacitor connected between the second node and a third node; and a second inductor connected between the third node and the ground.

3 . The power supply device of claim 2 , further comprising: an input capacitor connected between the first node and the ground; and
an output capacitor connected between the fourth node and the ground.

4 . The power supply device of claim 3 , wherein the power transmitting unit is connected between the second node and the fourth node.

5 . The power supply device of claim 4 , wherein the power transmitting unit includes a third switch, a fourth switch, and an auxiliary inductor connected in series.

6 . A power supply device, comprising:
a first inductor connected between a first node and a second node; a first switch connected between the second node and a ground so as to be switched according to a first switching signal; a separation capacitor connected between the second node and a third node; a second inductor connected between the third node and the ground; a second switch connected between the third node and a fourth node; and a power transmitting unit disposed between the second node and the fourth node so as to provide a power transmission path.

7 . The power supply device of claim 6 , further comprising:
an input capacitor connected between the first node and the ground; and an output capacitor connected between the fourth node and the ground.

8 . The power supply device of claim 7 , wherein the power transmitting unit is connected between the second node and the fourth node.

9 . The power supply device of claim 8 , wherein the power transmitting unit includes a third switch, a fourth switch, and an auxiliary inductor connected in series.

10 . The power supply device of claim 6 , wherein a power input unit is connected between the first node and the ground, and a load is connected between the fourth node and the ground.

11 . The power supply device of claim 6 , wherein a load is connected between the first node and the ground, and a power input unit is connected between the fourth node and the ground.

Assignees

• Samsung Electro Mech

Inventors

• Song Min Sup
• Son Young Dong
• Kim Changsung Sean
• Lee Geun Hong

Classifications

• H02M1/14

  Arrangements for reducing ripples from DC input or output · CPC title

• H02M3/158 Primary

  including plural semiconductor devices as final control devices for a single load · CPC title

• H02M3/155 Primary

  using semiconductor devices only · CPC title

• H02M3/10

  using discharge tubes with control electrode or semiconductor devices with control electrode (H02M3/07 takes precedence) · CPC title

• H02M3/145

  using devices of a triode or transistor type requiring continuous application of a control signal · CPC title