| 摘要 |
<p>Provided is a control circuit board, an inverter device, and an inverter integrated motor-driven compressor, wherein ElectroMagnetic Compatibility (EMC characteristics) can be improved with respect to input/output of electromagnetic noise, which is showing a tendency of increasing and becoming more complex, and reliability thereof can also be improved. The control circuit board (21), into which two power systems that are low voltage and high voltage are inputted, has a low voltage circuit and a high voltage circuit installed therein, and has a low-voltage side ground area (26) and a high-voltage side ground area (27) formed for each of the circuits. The control circuit board (21) is provided with frame ground areas (28A, 28B, 28C, 28D) at a plurality of places, and a plurality of communication line patterns (23A, 23B) to be connected to the low voltage circuit are connected to both the low-voltage side ground area (26) and the frame ground area (28A), via capacitive elements (29A, 29B, 30A, 30B) that have different capacitance.</p> |
