| 摘要 |
PROBLEM TO BE SOLVED: To provide a work machine with a power supply device, capable of maintaining voltages supplied to respective electrical apparatuses within a required range even when an output voltage of a power storage device drops.SOLUTION: A transformer includes a primary winding and a first secondary winding. A switching circuit switches an electric current from a DC power supply and gives the current to the primary winding of the transformer. A first rectifier circuit rectifies an alternating current appearing at the first secondary winding. A booster circuit boosts an output of the first rectifier circuit and generates a power voltage for analog circuit. |
