可调频闪灯电路

可调频闪灯电路--Adjustable Strobe Light

This one uses a much more powerful "horse shoe" Xenon tube which produces m模压电感器ore light. You can also control the flash rate up to about 20Hz. Do not look directly at the flash tube when this thing is on!

Parts

R1 250 Ohm 10 Watt Resistor
R2 500K Pot
R3 680K 1/4 Watt Resistor
D1,D2 1N4004 Silicon Diode
C1, C2 22 uF 350V Capacitor
C3 0.47uF 400 Volt Mylar Capacitor 交流电感器
T1 4KV Trigger Transformer (see "Notes&q电感生产厂家uot;)
L1 Flash Tube (see "Notes电感器生产")
L2 Neon Bulb
Q1 106 SCR
F1 115V 1A Fuse
Misc Case, Wire, Line Cord, Knob For R2

Notes
1. T1 and L1 are available from The Electronics Goldmine

2. This ciru电感生产厂家its is NOT isolated from ground. Use caution when operating without a case. A case is required for normal operation. Do not touch any part of the circuit with the case open or not installed.

3. Most any diodes rated at greater then 250 volts at 1 amp can be used instead of the 1N4004's.

4. Do not operate this circuit at high flash rates for more than about 30 seconds or else C1 and C2 will overheat and explode.

5. There is no on/off switch in the schematic, but you can of course add one.

平面变压器厂家 | 平面电感厂家

画PCB板时的覆铜疑惑从刚开始画PCB板时就对覆铜的定义不理解

而且现在手上有个4层板

看到它的覆铜是底层全部都是地，中间走信号，顶层有画一块区域是电源覆铜

那我就不明白了，如果底层全部都是被

关于充电桩熔断器选型的问题，请指教！问题一，直流充电桩是否都要使用熔断器？

问题二，交流充电桩是否要使用熔断器？

问题三，充电桩熔断器选型的原则是什么，是在设计之初就开始定义的吗？



本人刚刚进入熔断器行业，主要

基于温备份技术的高可靠嵌入式控制器设计随着航天技术的进步，空间科学实验的需求日益增多。我国已经发射了实践系列科学试验卫星[1]，在神舟飞船上也进行了大量的空间科学实验。为了保证实验的成功，航天科技人员采用了多种可靠性技术以提高航天计算机系