LED闪光灯电路-----LED flash light

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I will introduce the a-stable multivibrator circuit which used two transistors.
The a-stable multivibrator is the circuit which repeats the high level (H) condition and the low level (L) condition alternately.
hIn case of the transistor type, the voltage (Vcc) of the power supply can be comparatively freely set compared with the IC type. Also, it is possible to assemble compactly compared with the IC type when considering the power circuit and so on, too.
However, because V_EB is a maximum of 5V in the case of a transistor called 2SC1815 used this time, as supply voltage, it's to 5V. For details, please look at circuit explanation.

之前曾经介绍了一个LED的闪光灯电路,现在介绍的这个电路更简单,用两个三极管搭建多谐振荡器,震荡频率可以通过调整RX,RY,CX,CY进行调整.

按照上面参数,震荡频率在0.78赫兹.

当然,上面的电路中,三极管的型号不限定一定上C1815,常见的S9014,S9013都可以.