Abstract: An electrical power supply circuit includes at least two power supply branches. Each power supply branch includes a first semiconductor switch configured to be electrically connected to a power source. Each power supply branch includes a second semiconductor switch in series with the first semiconductor switch and electrically connected to a common output of the electrical power supply circuit. Each power supply branch includes a first resistor. A first end of the first resistor is electrically connected to an electrical connection between the first semiconductor switch and the second semiconductor switch. A second end of the first resistor is configured to be electrically connected to a reference potential.