Patent ID: 11909361
Assignee: NANJING MILLIWAY MICROELECTRONICS TECHNOLOGY CO., LTD.
Field: Basic communication processes (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. The broadband logarithmic detector with high dynamic range of claim 7, wherein the (3j+1)th-stage clipper amplifier and the (3j+3)th-stage clipper amplifier have the same circuit structure, the (3j+1)th-stage clipper amplifier comprises a twenty-fifth transistor M25 and a twenty-sixth transistor M26, the base of the twenty-fifth transistor M25 and the base of the twenty-sixth transistor M26 both serve as the input of the (3j+1)th-stage clipper amplifier, the phase of the base input signal for the twenty-fifth transistor M25 is different from the phase of the base input signal for the twenty-sixth transistor M26 by 180 degrees, the emitter of the twenty-fifth transistor M25 is grounded through a thirteenth current source Ib13, the emitter of the twenty-sixth transistor M26 is grounded through a fifteenth current source Ib15, the collector of the electrode twenty-fifth transistor M25 is connected respectively to the base of a twenty-seventh transistor M27, the emitter of a twenty-ninth transistor M29 and the base of a thirty-first transistor M31, the collector of the twenty-sixth transistor M26 is connected respectively to the emitter of the thirtieth transistor M30, the base of the thirty-second transistor M32 and the base of the twenty-eighth transistor M28, the base of the twenty-ninth transistor M29 is connected respectively to the collector of the twenty-seventh transistor M27 and one end of the thirteenth resistor R13, the base of the thirtieth transistor M30 is connected respectively to the collector of the thirty-first transistor M31 and one end of the fourteenth resistor R14, the other end of the thirteenth resistor R13, the other end of the fourteenth resistor R14, the collector of the twenty-ninth transistor M29, the collector of the thirtieth transistor M30, the collector of the thirty-first transistor M31 and the collector of the thirty-second transistor M32 are all input with a fifth supply voltage VCC5, the emitter of the twenty-seventh transistor M27 is connected to the emitter of the twenty-eighth transistor M28, the emitter of the twenty-seventh transistor M27 is grounded through a fourteenth current source Ib14, the emitter of the thirty-first transistor M31 is grounded through a twelfth current source Ib12, the emitter of the thirty-second transistor M32 is grounded through a sixteenth current source Ib16, the emitter of the thirty-first transistor M31 and the emitter of the thirty-second transistor M32 both serve as the output of the (3j+1)th-stage clipper amplifier, the collector of the twenty-seventh transistor M27 is further connected to one end of the fifteenth resistor R15, the collector of the twenty-eighth transistor M28 is further connected to one end of the sixteenth resistor R16, the other end of the fifteenth resistor R15 and the other end of the sixteenth resistor R16 are both connected to the input of the DC compensation circuit, the (3j+2)th-stage clipper amplifier comprises a first transistor M1 and a second transistor M2, the base of the first transistor M1 and the base of the second transistor M2 both serve as the input of the (3j+2)th-stage clipper amplifier, the phase of the base input signal for the first transistor M1 is different from the phase of the base input signal of the second transistor M2 by 180 degrees, the emitter of the first transistor M1 is grounded through the second current source Ib2, the emitter of the second transistor M2 is grounded through the fourth current source Ib4, the collector of the first transistor M1 is connected respectively to the base of the third transistor M3, the emitter of the fifth transistor M5 and the base of the seventh transistor M7, the collector of the second transistor M2 is connected respectively to the emitter of the sixth transistor M6, the base of the eighth transistor M8 and the base of the fourth transistor M4, the base of the fifth transistor M5 is connected respectively to the collector of the third transistor M3 and one end of the first resistor R1, the base of the sixth transistor M6 is connected respectively to the collector of the fourth transistor M4 and one end of the second resistor R2, the other end of the first resistor R1, the other end of the second resistor R2, the collector of the fifth transistor M5, the collector of the sixth transistor M6, the collector of the seventh transistor M7 and the collector of the eighth transistor M8 are all input with the first supply voltage VCC1, the emitter of the third transistor M3 is connected to the emitter of the fourth transistor M4, the emitter of the third transistor M3 is grounded through the third current source Ib3, the emitter of the seventh transistor M7 is grounded through the first current source Ib1, the emitter of the eighth transistor M8 is grounded through the fifth current source Ib5, the emitter of the seventh transistor M7 and the emitter of the eighth transistor M8 both serve as the output of the (3j+2)th-stage clipper amplifier.