This is a microcontroller IO port input circuit that has been used for many years. EVCC is the common power supply terminal, which is a common anode input. I have always thought that R2 in the figure
//-------------------------------------------------------- //EEPROM byte write program //Function: write a byte to the internal EEPROM //Entry: EEADR = address //EEDATA = data //----------------------
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Although HFSS is a very easy-to-use software, it is impossible to use it well if you are not familiar with the basic principles of its processing methods and the basic knowledge of microwaves. The att
I used the HA2556 analog multiplier to square a sine wave. Theoretically, I should get a double-frequency, equal-amplitude, positive half-cycle waveform, but the actual waveform is alternating between