A system includes a transistor having a control input and first and second current terminals. The system also includes a diode coupled between the second current terminal and a supply reference terminal. An electronics unit has a supply voltage terminal. The electronics unit has a capacitor coupled between the supply voltage terminal and the supply reference terminal. A cable has a length of at least one meter and is coupled between the transistor and the electronics unit. The cable has a parasitic inductance. A controller has a current sense input and a control output. The current sense input is coupled to the first current terminal, and the control output is coupled to the control input. The controller is configured to repeatedly turn on and off the transistor to charge the capacitor. Each time the transistor is turned off, inductive energy in the parasitic inductance continues to charge the capacitor.
CAPACITIVE LOAD CHARGING SYSTEM
2023-11-16
Patent
Electronic Resource
English
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