Patent ID: 8502570
Filing Date: 2013-08-06
Classification: H03K

Abstract:
1. A high efficiency driving circuit, comprising: a first P-type metal-oxide-semiconductor transistor having a first terminal for receiving a first voltage, a second terminal for receiving a first control signal, and a third terminal for coupling to a third P-type metal-oxide-semiconductor transistor; a second P-type metal-oxide-semiconductor transistor having a first terminal for receiving the first voltage, a second terminal for coupling to the third P-type metal-oxide-semiconductor transistor, and a third terminal; a first N-type metal-oxide-semiconductor transistor having a first terminal coupled to the third terminal of the first P-type metal-oxide-semiconductor transistor, a second terminal for receiving a second control signal, and a third terminal; a second N-type metal-oxide-semiconductor transistor having a first terminal coupled to the third terminal of the first N-type metal-oxide-semiconductor transistor, a second terminal, and a third terminal coupled to ground; a current source having a first terminal for receiving a second voltage, and a second terminal, wherein the current source is used for providing first current; a third N-type metal-oxide-semiconductor transistor having a first terminal coupled to the second terminal of the current source, a second terminal coupled to the first terminal of the third N-type metal-oxide-semiconductor transistor and the second terminal of the second N-type metal-oxide-semiconductor transistor, and a third terminal coupled to the ground; a fourth N-type metal-oxide-semiconductor transistor having a first terminal coupled to the second terminal of the current source, a second terminal, and a third terminal; a fifth N-type metal-oxide-semiconductor transistor having a first terminal coupled to the third terminal of the second P-type metal-oxide-semiconductor transistor, a second terminal coupled to the first terminal of the fifth N-type metal-oxide-semiconductor transistor and the second terminal of the fourth N-type metal-oxide-semiconductor transistor, and a third terminal coupled to the ground; a first resistor having a first terminal for receiving the first voltage, and a second terminal for coupling to the third P-type metal-oxide-semiconductor transistor; and a second resistor having a first terminal coupled to the third terminal of the fourth N-type metal-oxide-semiconductor transistor, and a second terminal coupled to the ground.