Patent ID: 9716436
Date: 2017-07-25
CPC Classifications: H02M

Claim:
1. A DC-to-DC converter, comprising: a first switch connected to an input voltage node and a common node, the first switch configured to provide a signal path between the input voltage node and an output voltage node of the DC-to-DC converter through the common node when the first switch is turned on; a second switch connected to a ground node and the common node, the second switch is configured to provide a signal path between the ground node and the output voltage node of the DC-to-DC converter through the common node when the second switch is turned on; and a control logic coupled to the first and second switches, the control logic configured to provide a first control signal and a second control signal to control the first and the second switches respectively, wherein a falling edge of the second control signal is aligned with a rising edge of the first control signal and a duty cycle of the second control signal is varied over time in a non-complementary manner when compared with a duty cycle of the first control signal while a voltage level of a first node of the DC-to-DC converter is less than a predefined level, the first node is a soft start voltage node.