2kV高稳定度高压脉冲电源设计

Design of A High-Stability High-Voltage Pulse Power with 2kV Output

摘要:

在一些光学精密仪器的应用场合中,不仅需要脉冲电源在时间上能够提供精确的控制,而且需要具有高稳定度的输出,以提高光电系统的探测性能;运用基于高压开关的两级式方法,采用单级高功率MOSFET开关结合具有高稳定输出的直流电源的结构,设计了输出辐度可达2kV的高稳定负脉冲电源;测试结果表明,在输出脉冲宽度为8 μs时,脉冲前沿约为48 ns,系统延迟时间约为140 ns,负脉冲超调参数约为1%。该系统具有结构简单、可靠性高、高稳定性输出等优点,可以为特定的光电器件提供优质的控制方式。

Abstract:

In some applications of precision measurement with optical instruments, the pulse power not only should have the ability of providing a high precise control in time, but also should giving a high stability of output to improve the performance of the the photoelectric detectors. This paper presents a design of negative pulse power with the output up to 2kV. It is based on a two-hierarchical method with a high-voltage switch and has a combination of a single high-power MOSFET switch and a high-stability DC power in the system. The results of the measurement shows that the designed system has a inherent delay of approximately 140 nanoseconds, the output pulse has a leading edge of approximately 48 nanoseconds and a overshoot parameter of approximately 1% when the output pulse width is 8 microseconds. The designed pulse power has many advantages such as simple structure, high-reliability, high-stability output and so on ,which can provide a prefect control method for a few particular photoelectric detectors.