Abstract: A bias circuit includes a buffer, a temperature compensation circuit, and a feedback circuit. The buffer includes a first transistor. A first terminal of the first transistor and a second terminal of the first transistor are electrically connected with a first voltage source. A third terminal of the first transistor is electrically connected with an external amplifier. The temperature compensation circuit includes a second transistor and a temperature compensation component. A first terminal of the second transistor is electrically connected with the third terminal of the first transistor. Two terminals of the temperature compensation component are electrically connected with a second terminal of the second transistor and the first voltage source respectively. A third terminal of the second transistor is grounded. The feedback circuit is electrically connected with the first terminal of the first transistor and the second terminal of the second transistor.

Abstract: A bias circuit includes a buffer, a temperature compensation circuit, and a feedback circuit. The buffer includes a first transistor. A first terminal of the first transistor and a second terminal of the first transistor are electrically connected with a first voltage source. A third terminal of the first transistor is electrically connected with an external amplifier. The temperature compensation circuit includes a second transistor and a temperature compensation component. A first terminal of the second transistor is electrically connected with the third terminal of the first transistor. Two terminals of the temperature compensation component are electrically connected with a second terminal of the second transistor and the first voltage source respectively. A third terminal of the second transistor is grounded. The feedback circuit is electrically connected with the first terminal of the first transistor and the second terminal of the second transistor.

Abstract: A micro-power rectifier including a plurality of charge pumps and a method of the micro-power rectifier are provided. The charge pumps respectively include an input capacitor, an output capacitor, a first diode and a second diode. Wherein, at least one of reference voltages of the output capacitors is greater than 0V, and other reference voltages of the output capacitors is/are a ground voltage. Therefore, the efficiency and the output voltage of the rectifier can be increased.