| 摘要 |
A dual output type DC-DC converter device comprises: a mode control unit which selects either one of a dual inductor mode or a signal inductor mode according to a mode setting value; a first PWM control unit which generates a first PWM control signal for a boost operation under the control of the mode control unit; a second PWM control unit which generates a second PWM control signal for a buck-boost operation under the control of the mode control unit; a switching unit which controls the supply of input power by the first and the second PWM control signals; and an output unit which is connected to the switching unit. The mode control unit differently controls the operation state of the first and the second PWM control units by mode. Therefore, the dual output type DC-DC converter device selectively uses dual/single inductor structures with a single device, flexibly handles according to the need of a designer, a loading condition, and a situational change, and can easily satisfy characteristics such as performance, size, costs, and expandability, which are considered to be important for different uses. [Reference numerals] (110) Mode control unit; (121,122) PWM control unit |
