Design of narrow pulse light source driving circuit of laser fuze

Chen Shanshan; Zhang He; Xu Xiaobin

doi:10.3788/IRLA201847.S106004

Aiming at the miniaturization and high performance requirements of laser fuze, a novel driving circuit was designed to drive the pulse laser diode. The circuit used high-speed MOSFET as the switching element to generate a driving pulse with narrow pulse width, short rise time and large peak current for laser diode. A corresponding driving circuit model was established. The effects of supply voltage, energy storage capacitor and damping resistor on the performance of driving pulse were analyzed by simulation and experiment. A driving circuit with the size of 19 mm10 mm was designed and the optimal circuit parameters were selected. The driving circuit provides a driving pulse with pulse width of 8.6 ns, rise time of 4 ns and peak current of 39 A. The design provides an effective improvement of detection performance of laser fuze.

Design of narrow pulse light source driving circuit of laser fuze

1. ZNDY of Ministerial Key Laboratory,Nanjing University of Science and Technology,Nanjing 210094,China;

2. College of Mechanical and Electrical Engineering,Hohai University,Changzhou 213022,China

Received Date: 2018-02-05

Rev Recd Date: 2018-05-03

Publish Date: 2018-06-25

Key words:

Abstract: Aiming at the miniaturization and high performance requirements of laser fuze, a novel driving circuit was designed to drive the pulse laser diode. The circuit used high-speed MOSFET as the switching element to generate a driving pulse with narrow pulse width, short rise time and large peak current for laser diode. A corresponding driving circuit model was established. The effects of supply voltage, energy storage capacitor and damping resistor on the performance of driving pulse were analyzed by simulation and experiment. A driving circuit with the size of 19 mm10 mm was designed and the optimal circuit parameters were selected. The driving circuit provides a driving pulse with pulse width of 8.6 ns, rise time of 4 ns and peak current of 39 A. The design provides an effective improvement of detection performance of laser fuze.

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Reference (16)

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Design of narrow pulse light source driving circuit of laser fuze

doi: 10.3788/IRLA201847.S106004

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