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1.发明授权
公开(公告)号：US5329100A
公开(公告)日：1994-07-12
申请号：US16016
申请日：1993-02-10
申请人： Min K. Lee
发明人： Min K. Lee
CPC分类号： H05B6/062
摘要： A circuit for compensating for the output of a high frequency induction heating cooker, comprising a rectifying circuit for rectifying an external AC input power into a DC power and applying the DC power to a working coil, an output regulation signal generating circuit for generating an output regulation signal as a result of the comparison of an input voltage and an output regulation voltage, a start driving circuit for generating a start drive voltage, a triangular wave generating circuit being triggered in response to a driven state of the working coil to generate a triangular wave signal, a switching circuit for start-driving the working coil in response to the start drive voltage, comparing the output regulation signal with the triangular wave signal and switching the driving of the working coil in accordance with the compared result, a voltage detecting circuit for detecting a voltage being applied from the rectifying circuit to the working coil and inversion-amplifying the detected voltage, an output control unit for generating output regulation data according to a user's selection, and a voltage dividing circuit for dividing an output voltage from the voltage detecting circuit according to the output regulation data and outputting the divided voltage as the output regulation voltage.
摘要翻译： 一种用于补偿高频感应加热烹调器的输出的电路，包括：整流电路，用于将外部交流输入功率整流为直流电，并将直流电力施加到工作线圈;输出调节信号发生电路，用于产生输出 作为输入电压和输出调节电压的比较的结果的调节信号，用于产生起动驱动电压的起动驱动电路，响应于工作线圈的驱动状态触发的三角波产生电路，以产生三角形 波形信号，用于响应于起动驱动电压开始驱动工作线圈的开关电路，将输出调节信号与三角波信号进行比较，并根据比较结果切换工作线圈的驱动;电压检测电路 用于检测从整流电路施加到工作线圈的电压，并对检测器进行反相放大 输出控制单元，用于根据用户的选择产生输出调节数据;以及分压电路，用于根据输出调节数据分压来自电压检测电路的输出电压，并输出分压电压作为输出调节电压。
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公开(公告)号：US4764652A
公开(公告)日：1988-08-16
申请号：US41351
申请日：1987-04-22
申请人： Min K. Lee
发明人： Min K. Lee
CPC分类号： H05B6/062
摘要： A power control device for high-frequency induced heating cooker is designed to supply a constant power to the work coil regardless of any change in the input current and voltage. The control device compares the voltage detected at the input current sensor detecting the input current of the full-wave rectifier with the set voltage of the user selector and applies a control voltage to the pulse oscillator and applies the pulse oscillating signal of the pulse oscillator to the driver and makes the switching transistor rapidly turn on and off to generate a high-frequency current through the work coil. It includes a voltage sensor to detect the input and output voltages of the coil, a comparator to compare both detector voltages and to determine the drive starting point of the oscillator, a subtractor to subtract the voltage on the input side of the work coil from the set voltage of the user selector, a comparator to compare the voltage detected at the input current sensor with the normal vessel reference voltage, a transistor to cut off the control voltage applied to the pulse oscillator, a search control voltage part to produce a search control voltage of a constant level and a starting circuit part to generate an oscillation signal of a constant cycle, and a transistor turned on and off by the oscillation signal and supplies the search control voltage to the pulse oscillator in a constant period.
摘要翻译： 用于高频感应加热烹调器的功率控制装置被设计成向工作线圈提供恒定功率，而不管输入电流和电压如何变化。 控制装置将检测到全波整流器的输入电流的输入电流传感器检测到的电压与用户选择器的设定电压进行比较，并向脉冲振荡器施加控制电压，并将脉冲振荡器的脉冲振荡信号施加到 驱动器并使开关晶体管快速导通和截止，以产生通过工作线圈的高频电流。 它包括用于检测线圈的输入和输出电压的电压传感器，用于比较两个检测器电压并确定振荡器的驱动起始点的比较器，减法器，从工作线圈的输入侧减去 设置用户选择器的电压，比较器，将输入电流传感器检测到的电压与正常容器参考电压进行比较;晶体管，用于切断施加到脉冲振荡器的控制电压;搜索控制电压部分，产生搜索控制 恒定电平的电压和起动电路部分，以产生恒定周期的振荡信号，并且晶体管由振荡信号导通和截止，并将搜索控制电压以恒定周期提供给脉冲振荡器。
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公开(公告)号：USD374752S
公开(公告)日：1996-10-15
申请号：US45593
申请日：1995-10-24
申请人： Min K. Lee , Sang K. Park
设计人： Min K. Lee , Sang K. Park
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公开(公告)号：US5376775A
公开(公告)日：1994-12-27
申请号：US962861
申请日：1992-10-19
申请人： Min K. Lee
发明人： Min K. Lee
摘要： A high frequency induction heating appliance comprising a working coil for generating a high frequency signal, a switching device for switching a drive voltage to the working coil, a low voltage transformer for lowering an AC power voltage, an input current detector for detecting current of the AC power, an output adjusting device for providing an output adjusting signal, a differential amplifier for amplifying a difference between output signals from the input current detector and output adjusting device, a first comparator for comparing the output signal from the input current detector with a reference voltage, an integrator for integrating an output signal from the differential amplifier, a start signal generating circuit, a zero crossing detecting circuit, a delay circuit for delaying a zero crossing detect signal by a time period, an AND logic operating circuit for AND logic-operating a start signal and the delayed zero crossing detect signal, a synchronizing signal generator, a reference signal generator, a second comparator for comparing an output signal from the AND logic operating circuit with a reference signal or comparing an output signal from the integrator with the reference signal, and a drive controller for controlling the operation of the switching device in response to an output signal from the second comparator.
摘要翻译： 一种高频感应加热装置，包括用于产生高频信号的工作线圈，用于切换到工作线圈的驱动电压的开关装置，用于降低交流电源电压的低压变压器，用于检测电流的电流的输入电流检测器 交流电源，用于提供输出调整信号的输出调整装置，用于放大来自输入电流检测器和输出调整装置的输出信号之间的差的差分放大器，用于将来自输入电流检测器的输出信号与参考值进行比较的第一比较器 用于对来自差分放大器的输出信号进行积分的积分器，起始信号发生电路，过零检测电路，用于将过零检测信号延迟一段时间的延迟电路，AND逻辑运算电路， 操作起始信号和延迟过零检测信号，同步信号发生器， 参考信号发生器，用于将AND逻辑运算电路的输出信号与基准信号进行比较的第二比较器，或将来自积分器的输出信号与参考信号进行比较;以及驱动控制器，用于响应于 来自第二比较器的输出信号。
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公开(公告)号：US5520440A
公开(公告)日：1996-05-28
申请号：US365628
申请日：1994-12-28
申请人： Min K. Lee
发明人： Min K. Lee
摘要： A foldable shock absorbing seat for industrial vehicles comprises a seat member; a back member extending upwardly from a rear end of the seat member; a first folding joint for allowing the back member to be folded relative to the seat member; a frame for supporting the seat member and the back member; a second folding joint provided on the frame for enabling the frame to be folded as the back member is folded toward the seat member; and a unit for absorbing shock inflicted on the seat member and the back member, and shock absorbing unit disposed between the frame and the seat and back members.
摘要翻译： 用于工业车辆的可折叠减震座椅包括座椅构件; 从所述座椅构件的后端向上延伸的后部构件; 用于允许所述后部构件相对于所述座椅构件折叠的第一折叠接头; 用于支撑座椅构件和后部构件的框架; 第二折叠接头，设置在所述框架上，用于当所述后部构件朝向所述座椅构件折叠时使所述框架能够折叠; 以及用于吸收在座椅构件和后部构件上产生的冲击的单元，以及设置在框架和座椅和后部构件之间的冲击吸收单元。
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公开(公告)号：US5124518A
公开(公告)日：1992-06-23
申请号：US628003
申请日：1990-12-17
申请人： Min K. Lee
发明人： Min K. Lee
摘要： A high frequency heating apparatus has an output controlling function to prevent breakdown of the switching element in an invertor circuit, while also eliminating noise generated by the frequency changes caused by the various consumption power signals generated. A microprocessor produces a consumption power change signal according to the user's preference, that activates a switching element, typically a solid-state component, as a function of the change signals produces. The inventive heating apparatus operates in an output control mode according to a particular duty cycle. A reference voltage is used with a comparator to produce a signal generating a pulse signal of variable width, according to the signals outputted from the microprocessor. The pulse width signals control the switching element to maintain a constant consumption power according to a particular duty cycle, thereby preventing the microprocessor output signals from adversely driving the switch element which leads to breakdown as a result of the undesirable noise generated due to the frequency change.
摘要翻译： 高频加热装置具有防止逆变器电路中的开关元件故障的输出控制功能，同时还消除由产生的各种消耗功率信号引起的频率变化产生的噪声。 微处理器根据用户的偏好产生消耗功率变化信号，其根据变化信号产生激活开关元件，通常为固态元件。 本发明的加热装置根据特定的占空比在输出控制模式下工作。 参考电压与比较器一起使用，以根据从微处理器输出的信号产生产生可变宽度的脉冲信号的信号。 脉冲宽度信号控制开关元件，以根据特定占空比维持恒定的功耗，从而防止微处理器输出信号不利地驱动开关元件，导致由于频率变化而产生的不期望的噪声导致的击穿 。
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