| 摘要 |
PURPOSE:To drive an electromagnetic movable section at high speed while improving a response property by a method wherein double pressure signals are instantaneously generated when inverting the polarity of input signals being at ON-OFF, and the signals are supplied to the electromagnetic movable section. CONSTITUTION:Power transistors of both Tr1 and Tr2 and both Tr3 are Tr4, polarity thereof is inverted and separate two pieces thereof form a pair, are ach mounted at the + side and the - side of a line connected to a power supply. A pair of transistors Tr5, Tr6 being at ON-OFF alternately by the ON-OFF of signals inputted through not elements NOT1, NOT2 are disposed to the control circuits of the TRs1-4 while an instantaneous double-pressure generating section G is installed at the output side, and the output is supplied to an electromagnetic movable section MC. Thus, pressure twice as high as the power supply is fed instantaneously to the movable section MC in response to the input signals, and the movable section is driven electromagnetically both in case of reciprocation. Consequently, the movable section MC can be driven at high speed while the response property can be improved. |
