Abstract: The present invention relates a low power control device using a sleep timer, and more particularly, to a low power control device using a controllable sleep timer which disables each component of a circuit while discharging an output voltage Vo using a control signal of a sleep timer in which a width of an OFF signal is larger than a width of an ON signal in a light load state and sequentially enables each component of the circuit while charging the output voltage in a predetermined order to minimize power consumption according to a loading level of a load.
Type:
Grant
Filed:
February 16, 2023
Date of Patent:
October 17, 2023
Assignee:
POWER LSI CO.LTD
Inventors:
Won Tae Lee, Won Ji Lee, Chang Sik Shin, Chuen Sik Jung, Gyu Won Lee
Abstract: The present invention relates to a multi-power supply device capable of controlling a sequence, and more particularly, to a multi-power supply device capable of controlling a sequence for a circuit in which two or more power sources are supplied from the outside and when one of the power sources has a problem so that the power is not supplied to an internal block, an internal voltage is stably supplied from another power source.
Type:
Grant
Filed:
February 16, 2023
Date of Patent:
August 22, 2023
Assignee:
Power LSI Co. ltd
Inventors:
Won Tae Lee, Won Ji Lee, Chang Sik Shin, Chuen Sik Jung, Gyu Won Lee
Abstract: The present invention relates to an adaptive soft start and soft stop device for a converter, and more particularly, provides an adaptive soft start and soft stop device for a converter which controls a final output voltage to be increased or decreased with a predetermined gradient by increasing a duty at a predetermined rate or increases a frequency during a start period using an input voltage Vin and an output voltage Vo and decreasing the duty at a predetermined rate or decreases a frequency during a stop period.
Type:
Grant
Filed:
June 28, 2021
Date of Patent:
August 22, 2023
Assignee:
Power LSI Co. ltd
Inventors:
Won Tae Lee, Won Ji Lee, Chang Sik Shin, Chuen Sik Jung, Gyu Won Lee