Patent ID: 7423415
Filing Date: 2008-09-09
Classification: H02M,Y02B

Abstract:
1. A DC-DC converter comprising: a first terminal electrically connected to one end of a load; a second terminal electrically connected to another end of the load; a first regulator for passing a current in a direction from the first terminal toward the load, and issuing a first voltage to the first terminal; and a second regulator for passing a current in a direction from the load toward the second terminal, and issuing a second voltage, being higher than a grounding voltage and lower than the first voltage, to the second terminal; wherein the second regulator is a switching regulator, including a main inductor and a main switch provided sequentially in a pathway from the second terminal to the grounding voltage, and a rectifying circuit provided in a direction of passing the current from an electrical connection point of the main inductor and the main switch, toward the first terminal or a power supply terminal.