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公开(公告)号：KR101244843B1
公开(公告)日：2013-03-25
申请号：KR1020110130686
申请日：2011-12-08
Applicant: (주)모토닉 , 안동대학교 산학협력단
IPC: H02P6/18
CPC classification number: H02P6/182 , H02P2203/03 , H02P2205/03
Abstract: PURPOSE: A counter electromotive force detection circuit of a sensorless BLDC(Brushless DC) motor and a method thereof are provided to improve the efficiency of the motor by detecting an accurate counter electromotive force even when the motor operates in a low RPM. CONSTITUTION: A three phase full bridge circuit drives a three phase sensorless BLDC motor. A first LPF(Low Pass Filter) unit filters the signal of an angular in the output of the motor. A second LPF unit changes a reference value toward the counter electromotive force level of the angular in the output of the motor. A comparator unit outputs the signal of the counter electromotive force to a pulse wave. The comparator unit compares the voltage of the first LPF unit and the second LPF unit.
Abstract translation: 目的：提供一种无传感器BLDC（无刷直流）电动机的反电动势检测电路及其方法，用于通过即使当电动机以低转速运转时检测精确的反电动势来提高电动机的效率。 构成：三相全桥电路驱动三相无传感器BLDC电机。 第一个LPF（低通滤波器）单元滤除电机输出端的角度信号。 第二LPF单元将参考值改变为电动机的输出中的角度的反电动势水平。 比较器单元将反电动势的信号输出到脉冲波。 比较器单元比较第一LPF单元和第二LPF单元的电压。
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公开(公告)号：KR2020080002445U
公开(公告)日：2008-07-03
申请号：KR2020080003785
申请日：2008-03-24
CPC classification number: G01F23/266 , G01F23/18
Abstract: 본 고안은 액체량 검출센서 및 이를 구비한 액체량 검출장치에 관한 것으로, 본 고안에 따른 액체량 검출 센서는, 단면이 원 또는 다각형의 형태로 구성되며 일정한 길이를 가지는 제1전극과, 상기 제1전극과는 빈 공간을 사이에 두고 일정거리를 유지하며 속이 빈 원통 또는 다각기둥 구조로써 상기 제1전극을 감싸는 형태의 제2전극을 구비하여, 상기 제1전극과 상기 제2전극 사이의 공간에 채워지는 액체물질의 유전율 또는 상기 액체물질의 양에 따른 정전용량의 변화를 이용하여, 일정 저장용기에 채워진 상기 액체물질의 양을 측정하는 것을 특징으로 한다. 본 고안에 따르면, 정전용량의 변화를 이용하여 액체량 검출이 가능해진다.
커패시터, 콘덴서, 정전용량, 연료, 액체-
Patent Agency Ranking
公开(公告)号：KR101383753B1
公开(公告)日：2014-04-10
申请号：KR1020130108970
申请日：2013-09-11
Applicant: (주)모토닉
Abstract: The present invention relates to a motor control device and a control method for the same. The motor control device according to the present invention comprises a motor driving part for driving a motor for a fuel pump; a current detection sensor for detecting a current supplied to the motor from a battery of a vehicle; a signal conversion part for converting a detection signal outputted from the current detection sensor into an RPM signal; and a control part which computes the current pressure of a fuel supplied form the fuel pump using the signal converted by the signal conversion part and which controls the motor driving part based on the target pressure of the fuel, transmitted from a main control part of the vehicle and the measured current pressure of the fuel. Therefore, the motor control device enables the precision control of the motor by detecting a current applied to the motor to compute the rotation speed of the fuel pump and the current pressure of the fuel. [Reference numerals] (11) Motor for a fuel pump; (12) Battery; (13) Main control part; (14) First switching part; (20) Motor drive control device; (22) Motor driving part; (24) Current detection sensor; (26) Signal conversion part; (30) CAN receiver; (32) Second switching part; (34) Switch driving part; (42) Speed calculator; (44) Pressure calculator; (AA) Control part
Abstract translation: 本发明涉及一种电动机控制装置及其控制方法。 根据本发明的电动机控制装置包括用于驱动用于燃料泵的电动机的电动机驱动部分; 电流检测传感器，用于从车辆的电池检测提供给电动机的电流; 信号转换部分，用于将从当前检测传感器输出的检测信号转换成RPM信号; 以及控制部分，其使用由信号转换部分转换的信号计算从燃料泵供应的燃料的当前压力，并且基于从主控制部分发送的燃料的目标压力来控制电动机驱动部分 车辆和燃料的测得的当前压力。 因此，电动机控制装置能够通过检测施加到电动机的电流来计算燃料泵的转速和燃料的当前压力来实现电动机的精密控制。 （附图标记）（11）燃料泵用电动机; （12）电池; （13）主控部分; （14）第一开关部; （20）电机驱动控制装置; （22）电机驱动部分; （24）电流检测传感器; （26）信号转换部; （30）CAN接收机; （32）第二开关部; （34）开关驱动部; （42）速度计算器; （44）压力计算器; （AA）控制部分
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公开(公告)号：KR101251906B1
公开(公告)日：2013-04-08
申请号：KR1020110130685
申请日：2011-12-08
Applicant: (주)모토닉 , 안동대학교 산학협력단
IPC: H02P6/18
CPC classification number: H02P6/182 , H02P7/29 , H02P2203/03
Abstract: PURPOSE: A counter-electromotive force detecting circuit of a sensorless BLDC motor and a method thereof are provided to precisely control a revolution speed of a motor by accurately calculating a rotor position of the motor according to a pulse signal. CONSTITUTION: A three phase full bridge circuit(10) operates a motor unit(20). A multiplying unit(30) multiplies the output of the motor unit by a signal of each phase and a phase modulation signal modulating a PWM(Pulse Width Modulation) control signal. The multiplying unit includes three multipliers multiplying an output signal of each phase by the phase modulation signal. An LPF(Low Pass Filter) unit(40) primarily filters each output signal outputted from the multiplying unit. The LPF unit includes three of first LPFs(41) extracting DC components of the output signal by filtering the output signal. A comparing unit(50) compares a counter-electromotive force level with a reference voltage value to output a pulse signal according to a rotor position. [Reference numerals] (41) First LPF;
Abstract translation: 目的：提供无传感器BLDC电动机的反电动势检测电路及其方法，通过根据脉冲信号精确计算电动机的转子位置，精确地控制电动机的转速。 构成：三相全桥电路（10）操作电机单元（20）。 乘法单元（30）将电机单元的输出乘以每相的信号和调制PWM（脉宽调制）控制信号的相位调制信号。 乘法单元包括将每相的输出信号乘以相位调制信号的三个乘法器。 LPF（低通滤波器）单元（40）主要对乘法单元输出的每个输出信号进行滤波。 LPF单元包括通过对输出信号进行滤波来提取输出信号的DC分量的三个第一LPF（41）。 比较单元（50）将反电动势水平与参考电压值进行比较，以根据转子位置输出脉冲信号。 （附图标记）（41）第一LPF;
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公开(公告)号：KR1020110010930A
公开(公告)日：2011-02-08
申请号：KR1020090068293
申请日：2009-07-27
Applicant: (주)모토닉
IPC: H02M7/10
Abstract: PURPOSE: A voltage doubling circuit is provided to supply double battery voltage to a motor driver by reducing the drop of an output voltage in a high load. CONSTITUTION: A first transistor(Q1) switches a battery voltage(VCC) with a first pulse signal. A second transistor(Q2) receives a second pulse signal(PS2). A third transistor(Q3) receives the battery voltage. A first capacitor(C1) charges or discharges the battery voltage.
Abstract translation: 目的：提供电压倍增电路，通过减少高负载下输出电压的下降，为电机驱动器提供双电池电压。 构成：第一晶体管（Q1）用第一个脉冲信号切换电池电压（VCC）。 第二晶体管（Q2）接收第二脉冲信号（PS2）。 第三晶体管（Q3）接收电池电压。 第一电容器（C1）对电池电压进行充电或放电。
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公开(公告)号：KR101251907B1
公开(公告)日：2013-04-08
申请号：KR1020110130684
申请日：2011-12-08
Applicant: (주)모토닉 , 안동대학교 산학협력단
IPC: H02P6/18
CPC classification number: H02P6/182 , H02P7/29 , H02P2203/03 , H02P2207/05
Abstract: PURPOSE: A counter-electromotive force detecting circuit of a sensorless BLDC motor and a method thereof are provided to output a rotor position detection signal adjacent to a detection signal of a hole sensor by synchronizing the detection signal with a pulse modulation signal. CONSTITUTION: A three phase full bridge circuit(10) operates a motor unit(20). A detecting unit(30) detects counter-electromotive force by comparing a counter-electromotive force level with a reference voltage value. The detecting unit includes a first LPF(Low Pass Filter)(31) connected with an output terminal of each phase of the motor unit and three of first comparators(32) comparing an output signal of each phase with the reference voltage value. A pulse modulating unit(40) outputs a pulse modulation signal by comparing a DC link current with a signal filtered at different frequency bands. A synchronizing unit(50) outputs a rotor position detection signal by synchronizing a synchronizes detection signal with the pulse modulation signal. [Reference numerals] (41) Second LPF; (AA) Third LPF;
Abstract translation: 目的：提供无传感器BLDC电机的反电动势检测电路及其方法，通过使检测信号与脉冲调制信号同步，输出与孔传感器的检测信号相邻的转子位置检测信号。 构成：三相全桥电路（10）操作电机单元（20）。 检测单元（30）通过将反电动势水平与参考电压值进行比较来检测反电动势。 检测单元包括与电动机单元的各相的输出端连接的第一LPF（低通滤波器）（31）和将每相的输出信号与参考电压值进行比较的三个第一比较器（32）。 脉冲调制单元（40）通过将DC链路电流与在不同频带滤波的信号进行比较来输出脉冲调制信号。 同步单元（50）通过使同步检测信号与脉冲调制信号同步来输出转子位置检测信号。 （41）第二LPF; （AA）第三LPF;
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公开(公告)号：KR101017683B1
公开(公告)日：2011-02-25
申请号：KR1020090068293
申请日：2009-07-27
Applicant: (주)모토닉
IPC: H02M7/10
Abstract: 본 발명은 출력단에서 부하에 따라 출력전압이 강하하는 현상을 개선한 전압배가기 회로에 관한 것으로, 베이스단에 인가되는 제 1펄스신호에 의해 배터리전압을 스위칭하는 제 1트랜지스터, 베이스단에 상기 제 1펄스신호를 반전한 제 2펄스신호를 인가받는 제 2트랜지스터, 상기 제 2트랜지스터와 푸시풀 회로로 구성되고, 베이스단에 상기 제 1트랜지스터로부터 스위칭된 배터리전압을 인가받는 제 3트랜지스터 및 상기 제 2 및 제 3트랜지스터의 스위칭 동작에 기초하여 상기 배터리전압을 충전하고, 충전된 전원을 방전하는 제 1커패시터를 포함하고, 상기 제 1 및 제 2트랜지스터는 NPN형이고, 상기 제 3트랜지스터는 PNP형인 구성을 마련한다.
상기와 같은 전압배가기 회로를 이용하는 것에 의해, 출력단에서 부하에 따른 출력전압의 강하현상을 감소시켜 정상상태의 직류구동전압을 출력하는데 소요되는 시간을 단축하고, 안정적인 전압레벨의 출력전압을 출력할 수 있다.
전압배가기, NPN형, 푸시풀, 펄스신호
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