Power supply device
AssigneeSolum Co., Ltd.
InventorsTae Won Heo, Hwan Cho, Jeong Gyu Lim, Sang Kyoo Han, Young Seung Noh, Bo Mi Lee
Life of this patent
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Abstract
There is provided a power supply device having a primary side and a secondary side isolated from each other. The power supply device includes: a power supply unit converting power from the primary side to output the converted power to the secondary side; a control unit located on the secondary side and acquiring control information on the power supply unit based on a voltage output from the power supply unit; and a delivery unit delivering the control information to the primary side, the delivery unit including a Y-capacitor that provides an EMI noise path between the primary side and the secondary side.
Claims4
A power supply device having a primary side and a secondary side isolated from each other, the power supply device comprising:
- a power supply unit converting power from the primary side to output the converted power to the secondary side;
- a control unit located on the secondary side and acquiring control information on the power supply unit based on a voltage output from the power supply unit;
- and
- a delivery unit that delivers the control information to the primary side, the delivery unit including a Y-capacitor element that provides an EMI noise path between the primary side and the secondary side,
- wherein the delivery unit includes:
- a first deliverer delivering first transition information from the control unit to instruct transition from a low level to a high level;
- and
- a second deliverer delivering second transition information from the control unit to instruct transition from the high level to the low level,
- wherein the first deliverer includes a first capacitor element, a first resistor element, and a first diode element, wherein the first resistor element is electrically connected between one terminal of the first capacitor element and one terminal of the Y-capacitor element, the one terminal of the first capacitor element is electrically connected to an anode of the first diode element, and the other terminal of the Y-capacitor element is grounded, and
- wherein the second deliverer includes a second capacitor element, a second resistor element, and a second diode element, wherein the second resistor element is electrically connected between one terminal of the second capacitor element and the one terminal of the Y-capacitor element, the one terminal of the second capacitor element is electrically connected to an anode of the second diode element, and the other terminal of the Y-capacitor element is grounded.
A power supply device, comprising:
- a power supply unit having a primary side and a secondary side, and a primary winding formed on the primary side and a secondary winding formed at the secondary side and inductively coupled to the primary winding, the power supply unit including a Y-capacitor element that provides an EMI noise path between the primary side and the secondary side;
- a control unit located on the secondary side and acquiring control information on the power supply unit based on a voltage output from the power supply unit;
- and
- a delivery unit having a high-pass filter including the Y-capacitor element and delivering the control information to the primary side,
- wherein the delivery unit includes:
- a first deliverer delivering first transition information from the control unit to instruct transition from a low level to a high level;
- and
- a second deliverer delivering second transition information from the control unit to instruct transition from the high level to the low level,
- wherein the first deliverer includes a first capacitor element, a first resistor element, and a first diode element, wherein the first resistor element is electrically connected between one terminal of the first capacitor element and one terminal of the Y-capacitor element, the one terminal of the first capacitor element is electrically connected to an anode of the first diode element, and the other terminal of the Y-capacitor element is grounded, and
- wherein the second deliverer includes a second capacitor element, a second resistor element, and a second diode element, wherein the second resistor element is electrically connected between one terminal of the second capacitor element and the one terminal of the Y-capacitor element, the one terminal of the second capacitor element is electrically connected to an anode of the second diode element, and the other terminal of the Y-capacitor element is grounded.
Dependencies are inferred from the claim text.