deskthority

As you known, the rated power supply of solenoid in beam spirng & 3178 keyboard is 8.5V or 12V. In the beginning, I tried to use USB +5V to generate +8.5V or +12V with one DC/DC for solenoid power supply. But this way is not successful due to inductive load and limitation of USB power. Finally, I ...

Converters Demo Video, Thanks!
https://v.youku.com/v_show/id_XNDE1NDY0 ... 244740.0.0
https://v.youku.com/v_show/id_XNDE1NDY0 ... 244740.0.0
https://v.youku.com/v_show/id_XNDE1NDYz ... 244740.0.0