| 摘要 |
PURPOSE:To efficiently drive a motor in a simple circuit by applying a low voltage to a coil when the state does not alter and applying a high voltage when the state alters. CONSTITUTION:When the first state that switching elements 24, 34 are closed and other switching elements 26, 32 are opened is switched to the second state that the switches are changed to the reverse second state, the elements 24, 34 are opened by the inductive property of coils 14a, 14c. Then, a current is flowed from the ground through a capacitor 48, a diode 40 and a coil 14a to the ground, and also flowed from the ground through a coil 14c, a diode 42 and a capacitor 50 to the ground. Then, the energy in the coils 14a, 14b is transferred to the capacitors 48, 50. When the switches 26, 32 are closed, the flow of the current is inverted by the high voltages of the capacitors 48, 50, and new current level in coils 14a, 14c is accelerated to be stabilized. |
