Power module
AssigneeMitsubishi Electric Corporation
InventorMasaki Sakai
Life of this patent
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Abstract
A power module according to the first embodiment incorporates a power device, and drives the power device by using a control signal acquired from a microcomputer being a control circuit. The power module includes: a plurality of first terminals that receive input of the control signal from the microcomputer; a main circuit that drives the power device based on the control signal, and detects an abnormality of the power module; an error output circuit that outputs an error signal from a second terminal to the microcomputer when the abnormality is detected by the main circuit; and a switching circuit that causes the first terminal to operate as an output terminal for the microcomputer when the error signal is output. Information of the power device is output from the first terminal operating as the output terminal to the microcomputer.
Claims5
A power module that incorporates a power device and drives the power device by using a control signal acquired from a control circuit, the power module comprising:
- a plurality of first terminals configured to receive input of the control signal from the control circuit;
- a main circuit configured to drive the power device based on the control signal, and detect an abnormality of the power module;
- an error output circuit configured to output an error signal from a second terminal to the control circuit when the abnormality is detected by the main circuit;
- and
- a switching circuit configured to cause at least one of the plurality of first terminals to operate as an output terminal for the control circuit when the error signal is output, wherein
- information of the power device is output from the at least one of the plurality of first terminals operating as the output terminal to the control circuit.
Dependencies are inferred from the claim text.