Power supply circuit and electronic device

An electronic device comprising:

• a power supply circuit;
• and
• a load that operates with power supplied from an output node of the power supply circuit, wherein
• the power supply circuit includes
• a first power supply line that couples a first input node from which first input power is input and the output node to each other,
• a second power supply line that couples a second input node from which second input power is input and the output node to each other, a power limit of the second input power being higher than that of the first input power,
• a converter that is inserted in the first power supply line and that converts a voltage of the first input power input from the first input node to a higher voltage or a lower voltage,
• an adjustment circuit that adjusts an output voltage of the converter to a voltage higher than a voltage of the second input power input from the second input node,
• a first rectifier circuit that is inserted in the first power supply line to direct a forward direction of the first rectifier circuit to a direction from the converter to the output node,
• a second rectifier circuit that is inserted in the second power supply line to direct a forward direction of the second rectifier circuit to a direction from the second input node to the output node, and
• a control circuit that controls a voltage on an output node side of the first rectifier circuit and a voltage on an output node side of the second rectifier circuit to be identical to each other.

A PCI card comprising:

• a power supply circuit;
• and
• a load that operates with power supplied from an output node of the power supply circuit, wherein
• the power supply circuit includes
• a first power supply line that couples a card edge from which first input power is input and the output node to each other,
• a second power supply line that couples a connector from which second input power is input and the output node to each other, a power limit of the second input power being higher than that of the first input power
• a converter that is inserted in the first power supply line and that converts a voltage of the first input power input from the card edge to a higher voltage or a lower voltage,
• an adjustment circuit that adjusts an output voltage of the converter to a voltage higher than a voltage of the second input power input from the connector,
• a first rectifier circuit that is inserted in the first power supply line to direct a forward direction of the first rectifier circuit to a direction from the converter to the output node,
• a second rectifier circuit that is inserted in the second power supply line to direct a forward direction of the second rectifier circuit to a direction from the connector to the output node, and
• a control circuit that controls a voltage on an output node side of the first rectifier circuit and a voltage on an output node side of the second rectifier circuit to be identical to each other.