Circuit for generate pulse

Abstract

A pulse generation circuit includes a differential shaping circuit and an emitter follower. The differential shaping circuit includes a resistor R1, a resistor R2, a resistor R3, a capacitor C2, and acapacitor C3. The differential shaping circuit includes a resistor R1, a resistor R2, a resistor R3, a capacitor C2, and a capacitor C3. The generating circuit further comprises an expansion interface IN, a negative power supply Vss, a positive power supply Vcc, a sliding rheostat R4, a transistor Q1, an energy storage capacitor C1, a resistor R9, a capacitor C4 and an inductor L1; The circuit has high working efficiency. By adjusting the resistance of the rheostat R7, the voltage of the base of the transistor Q2 is changed, and the working voltage of the transistor can be flexibly changed.

Description

Technical field [0001] The invention relates to the field of electronic technology, in particular to a pulse generating circuit. Background technique [0002] With the rapid development of science and technology, the ultra-wideband technology used in radar systems has gradually entered everyone’s field of vision. With the development and wide application of wireless communication technology, spectrum resources have become more and more precious. The requirements for ultra-wideband technology are getting higher and higher. Ultra-wideband technology is called UWB technology. It has the characteristics of low power consumption, strong anti-interference ability, good confidentiality, and large capacity. However, the power spectral density of UWB signals is low, so high-speed narrow pulse generation It is a key technology. The pulse is realized by a pulse generating circuit. The core of the generating circuit is a transistor and a current-limiting resistor. The current-limiting resist...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of science and technology, the ultra-wideband technology used in radar systems has gradually entered everyone's field of vision. With the development and wide application of wireless communication technology, spectrum resources have become more and more precious. UWB technology is called UWB technology, which has the characteristics of low power consumption, strong anti-interference ability, good confidentiality, and large capacity. However, the power spectral density of UWB signals is low, so the generation of high-speed narrow pulses It is a key technology. The pulse is realized by the pulse generating circuit. The core of the generating circuit is the triode and the current limiting resistor. The current limiting resistor in the commonly used generating circuit has a large power loss, and the recovery time of the pulse circuit is longer, resulting in The power of the whole circuit is low, so it is necessary to redesign a generation circuit, use an emitter follower instead of a current limiting resistor, provide a larger charging current, and speed up the recovery of a pulse circuit.

Images