| 摘要 |
PROBLEM TO BE SOLVED: To provide a power supply controller in which adjacent carrier interference in a transient state when a power supply is turned on/off is suppressed and the circuit scale is reduced. SOLUTION: A signal system of th digital radio equipment is divided into a plurality of groups and the power supply equipment divides its secondary voltage supplies into a plurality of groups 22-24 depending on a plurality of the signal groups and a control section 30 sequentially turns on/off switches 25-28 provided respectively to a primary voltage side and a plurality of the secondary voltage supplies based on interruption/connection information of a power supply switch 40. Adjacent carrier interference is suppressed by turning on/off the power supply sequentially for each of sections 12, 13, 14 of a transmitter by properly setting the sequence through only the operation of the power supply equipment, no special circuit is required, the circuit scale is reduced, large scale circuit integration is attained and miniaturization and low cost are realized. |
