| 摘要 |
PROBLEM TO BE SOLVED: To provide a DC to DC converter configured to reduce the circuit size.SOLUTION: The DC to DC converter includes a first switch, in which one end is connected to an input terminal; a second switch, in which one end is connected to other end of the first switch, and other end is grounded; an inductor, in which one end is connected to the first switch, and other end is connected to an output terminal; a smoothing means, in which one end is connected to other end of the inductor, and other end is grounded; a first impedance element, in which one end is connected to one end of the smoothing means; a first resistor element, in which one end is connected to the first impedance element, and other end is connected to the other end of the first impedance element; an operational amplifier, in which an inverting input terminal is connected to other end of the first impedance element, and a reference voltage is applied to a non-inverting input terminal; a second impedance element, in which one end is connected to the other end of the first resistor element, and the other end is connected to a control output terminal of the operational amplifier; and a control means witch controls the first and second switches according to a control signal outputted from the control output terminal of the operational amplifier. |
