When making some low-power products or some products need to save power, we will put the MCU into low-power mode when it is not processing application tasks to extend the battery life; APM32E103VET6S
Electronically reconfigurable, or electrically tunable, microwave filters are attracting increasing attention for research and development due to their growing importance in improving the capacity of
Several issues on relay contact protection circuit, switching power supply RCD circuit, and MOS tube structure
1. The relay coil is connected in parallel with the RC series circuit to absorb the self-