Switched parallel power supply branches

An electrical power supply circuit comprising:

• a plurality of parallel power supply branches, wherein each respective power supply branch of the plurality of parallel power supply branches:
• is configured to be connected to or disconnected from a corresponding power source,
• is configured to be connected to or disconnected from a respective reference potential,
• is configured to avoid reverse current from flowing into the respective power supply branch,
• includes a respective first resistor including:
• a first end configured to be connected to or disconnected from an output of a respective semiconductor switch, and
• a second end configured to be connected to or disconnected from the respective reference potential, and
• includes a respective second resistor including:
• a first end, and
• a second end;
• and
• a controller configured to at least one of:
• switch the respective semiconductor switch,
• take signals corresponding to a potential at the output of the respective semiconductor switch as input,
• selectively connect the first end of the respective first resistor of each respective power supply branch of the plurality of parallel power supply branches to the output of the respective semiconductor switch,
• selectively connect the second end of the respective first resistor of each respective power supply branch of the plurality of parallel power supply branches to ground,
• selectively connect the first end of the respective second resistor to the output of the respective semiconductor switch of each respective power supply branch of the plurality of parallel power supply branches, or
• selectively connect the second end of the respective second resistor of each respective power supply branch of the plurality of parallel power supply branches to the output of the electrical power supply circuit.