| 摘要 |
<p>A power source circuit (10) capable of reducing power consumption for generating a constant voltage and a constant current, and a circuit scale, comprising FETs (20-23, 30, 40, 42), a resistor (50), and an output buffer (60), wherein FETs (20, 30, 40, 42), the resistor (50) and the output buffer (60) constitute a constant voltage source, and FETs (20-23, 30. 40, 42) and the resistor (50) constitute a constant current source. Components necessary to generate one type of constant voltage and three types of constant current are shared.</p> |
