公开(公告)号：KR1020000020541A

公开(公告)日：2000-04-15

申请号：KR1019980039198

申请日：1998-09-22

Applicant: 전자부품연구원

Inventor： 임태빈 ,  성하경 ,  정중기 ,  이종배 ,  정재훈 ,  하근수

IPC: H02P21/00

Abstract: PURPOSE: A micro step driving circuit is provided to increase a resolution of a rotation angle of a three-phase step motor, and to reduce the number of elements of the driving circuit. CONSTITUTION: A micro step driving circuit comprises a digital-analog converter(10), a current-voltage converter(20), a differential amplifier(30), a PWM wave generator(40), a logic gate circuit(50), a switching transistor part(60). The digital-analog converter(10) receives a digital control signal of a control part and converts the digital control signal into an analog current signal. The current-voltage converter(20) receives the analog current signal to convert the analog current signal into an analog potential. The differential amplifier(30) receive the analog output voltage of the analog current voltage converter via a first terminal, and compares a potential of a first reference point with a value inputted to a second terminal to amplify a differential between input voltages of the first and second terminals. The PWM wave generator(40) receives an output signal of the amplifier to generate a PWM wave, and the logic gate circuit(50) receives an output signal of the PWM wave generator and a magnetization control signal to control a switching of a switching transistor pair. The switching transistor part(60) receives an output logic value of the logic gate circuit via bases of serial-connected transistors to control a magnetization of a motor.

Abstract translation: 目的：提供微步进驱动电路，以提高三相步进电机的旋转角度的分辨率，并减少驱动电路的元件数量。 构造：微步驱动电路包括数模转换器（10），电流 - 电压转换器（20），差分放大器（30），PWM波发生器（40），逻辑门电路（50）， 开关晶体管部分（60）。 数模转换器（10）接收控制部分的数字控制信号，并将数字控制信号转换为模拟电流信号。 电流 - 电压转换器（20）接收模拟电流信号以将模拟电流信号转换为模拟电位。 差分放大器（30）经由第一端子接收模拟电流电压转换器的模拟输出电压，并将第一参考点的电位与输入到第二端子的值进行比较，以放大第一和第 第二个终端。 PWM波发生器（40）接收放大器的输出信号以产生PWM波，并且逻辑门电路（50）接收PWM波发生器的输出信号和磁化控制信号，以控制开关晶体管 对。 开关晶体管部分（60）经由串联晶体管的基极接收逻辑门电路的输出逻辑值，以控制电动机的磁化。

公开(公告)号：KR1020000018576A

公开(公告)日：2000-04-06

申请号：KR1019980036222

申请日：1998-09-03

Applicant: 전자부품연구원

Inventor： 임태빈 ,  성하경 ,  정중기 ,  하근수 ,  이종배 ,  정재훈

IPC: H02P21/00

Abstract: PURPOSE: A micro step motor driving circuit is provided to control a rotation angle of a motor finely without a feedback system. CONSTITUTION: The micro step motor driving circuit comprises: a D/A converter (11U) for receiving a digital signal from a control part to output an analog potential; an amplifier (12U) for amplifying the analog output potential from the D/A convertor; an inverter (13U) for receiving an output value of the amplifier to invert the received output value; an adder (14U) for adding the output value of the inverter and a power supply voltage; and a switching transistor section (15) for inputting the output value of the adder and the output value of the amplifier to a base of each transistor and controlling a current amount flowing through each transistor by the size of the output values of the adder and the amplifier to output the controlled current to a motor.

Abstract translation: 目的：提供微步进电机驱动电路，以便在没有反馈系统的情况下精确地控制电动机的旋转角度。 构成：微步进电动机驱动电路包括：D / A转换器（11U），用于从控制部分接收数字信号以输出模拟电位; 用于从D / A转换器放大模拟输出电位的放大器（12U）; 反相器（13U），用于接收放大器的输出值以反转所接收的输出值; 加法器（14U），用于将逆变器的输出值与电源电压相加; 以及用于将加法器的输出值和放大器的输出值输入到每个晶体管的基极的开关晶体管部分（15），并且通过加法器的输出值的大小控制流过每个晶体管的电流量， 放大器将受控电流输出到电机。