Recently, the domestic chip that has been praised by old forum friends , the 800MHz RISC-V MCU theme live broadcast is coming, coming~
This Wednesday night from 20:00 to 21:00, we have invited senior
Ripple exists in theory and in practice. There are five common ways to suppress or reduce it:
1. Increase inductance and output capacitor filtering
According to the formula of switching power supply,
The measuring range is 10Hz-50Mhz, and it is displayed by an 8-digit digital tube. The principle of the digital frequency meter is very simple, which is to calculate the number of pulses of the signal
The same hardware and software have a normal quiescent current of 100uA. Why do some machines reach 120 or 130uA? What's the reason? I have been looking for a long time but have not found the reason.
This kind of DC60V 100AH battery pack is converted into AC220V15A and has a solar MPPT power tracking energy storage power supply. Who has designed it before? Or has a solution? It can provide PCBA, n