PURPOSE: To obtain the energizing controller of a camera which expedites stroboscope charging and to avert missing of a release opportunity by alternately turning on and off and operating a boosting circuit of the stroboscope and a film winding motor in time divisions.

CONSTITUTION: A trigger circuit 2 triggers a flash discharge tube X1 and dis charge the charge of a capacitor C1 to emit a flash when a release button is pushed down and a trigger pulse XTrg is impressed from a control circuit 3. A winding signal and a motor driving gate signal are supplied and the circuit 3 supplies control signals S1, OC1 to a motor driving circuit 4 and the boosting circuit 1, respectively. The signals S1 and OC1 are of the antiphase to each other and the circuits 4 and 1 are alternately turned on and off and are thereby operated without making simultaneous operation. The film winding motor M has gear system inertia and runs even if the driving current is intermitted at a high frequency and, therefore, an ordinary winding operation is executed and the stroboscope charging is executed in parallel. The circuit 1 makes charg ing in succession so as to be ready for the next light emission when the strobo scope charging is not completed at the point of the time when the winding ends.