PROBLEM TO BE SOLVED: To provide a method for adjusting the pulse repetition frequency of clock module without greatly affecting the manufacturing cost of integrated circuit, and requiring any complicated work.ギュンターモイスバーガーニコラスジャネット...
The ratio between pulse and pause times in the operating condition of the system as such is controlled by the maximum heat requirement. If the pulse/pause ratio is held constant, the same flexibility in heat provision can be obtained by controlling the frequency of the periods during which the...
AC motor speed control by PWM frequency converter J一001旧mo一kuon tjooZh一b旧nPlnt旧osu交流脉宽调制变频调速(Ae motor speedeontrol by PWM frequeuey eonverter)在交流一直流一交流变频调速系统中,采用脉冲宽度调制(Pulse Width Modulation,PWM)实现交流电动机调速的技术。交流电动机的极对数一定时,其同步...
This circuit device (100) the pulse duration modulator which operates with the carrier frequency of 1kHz we have possessed (5), on/off ratio of this pulse duration modulator depending on measuring fixed quantity, is changed in between 0 - 90%. The pulse duration modulator (5) the output ...
The digital circuit, for a thyristor dc pulse controller, controls the frequency of the signals applied both to the summation and subtraction inputs of two reserve counters. The circuit may be used with electric train drives or individual motors. Control channels contain series combinations ...
The digital circuit, for a thyristor dc pulse controller, controls the frequency of the signals applied both to the summation and subtraction inputs of two reserve counters. The circuit may be used with electric train drives or individual motors. Control channels contain series combinations ...
The filter has two series filter stages the first of which is used to process the signal at the lowest sampling frequency, with the second stage used to raise the sampling frequency. The zero points of the function for the first filter stage all lie in the Z plane while those for the ...
The signals proportional to speed are generated by a tachometer whose pulse frequency is proportional to speed. The volume is controlled at the 1.f. output circuit of the radio via a variable attenuator or amplifier. If the radio is stereophonic each channel has its own attenuator or amplifier...
and a direct current, a function to convert an applied DC voltage and an applied direct current outputted from the application power supply 1 into an application power supply of constant pulse repetition frequency through an application time, and a timer which sets and controls an application ...
Further, at least one of a generation timing and a generation frequency of at least one of the modified PWM pulses is changed from the assumed PWM pulse.AKIO TOBAAKIHIRO ODAKAHIDETOSHI UMIDA