What kind of transformer should I use to amplify a 12V 40KHZ square wave signal to about 40V? I used a small transformer with two pins on one side and three pins on the other side! But when a square w...
This article is excerpted from the book "A Practical Guide to Linux Kernel Development for Embedded Systems (ARM Platform)". In my second year of work (1997), I designed and produced a modular chiller...
1. Try to increase the distance (S) between parallel segments, at least greater than 3H, where H refers to the distance from the signal routing to the reference plane. In layman's terms, routing is do...
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The circuit diagram is as above. PWM is generated by the microcontroller. It stands to reason that when the PWM (5V) input is high, the MOS tube IRFZ48N should be fully turned on. However, after measu...
The harmonic filter of DF100A shortwave transmitter is an important part of the transmitter. This paper briefly introduces the composition of the RF circuit of DF100A shortwave transmitter, and focuse...