OUTDOOR UNIT FOR AIR CONDITIONER

The present invention provides an outdoor unit for an air conditioner that allows costs to be minimized while suppressing the risk of malfunction. Accordingly, the outdoor unit for an air conditionerhas a compressor (46), a fan motor (44), a compressor driving substrate (22) having an inverter circuit (30) for the compressor and a drive circuit (4) for the compressor, and a fan driving substrate(26) having an inverter circuit (25) for a fan and a drive circuit (24) for the fan, wherein the compressor driving substrate (22) is provided with: a common control circuit (9) for supplying a switching signal (SC) for the compressor to the drive circuit (4) for the compressor and a switching signal (SF) for the fan to the drive circuit (24) for the fan; and/or a common power supply circuit (11)for stepping down a first DC voltage (V1) and generating a second DC voltage (V2), and supplying the second DC voltage (V2) to the drive circuit (4) for the compressor and the drive circuit (24) for the fan. 本发明实现种能够边抑制误动作的风险边廉