公开(公告)号：BR0300272A

公开(公告)日：2004-08-03

申请号：BR0300272

申请日：2003-01-28

Applicant: LG ELECTRONICS INC

Inventor： YOO JAE YOO ,  LEE CHEL WOONG ,  SUNG JI WON ,  LEE HYUK

IPC: F04B49/12 ,  F04B35/04 ,  F04B49/06 ,  F04B49/00

Abstract: In an apparatus and a method for controlling operation of a compressor, by removing deviation generated by resistance and inductance and removing an error in a stroke estimation value of a compressor, operation of the compressor can be accurately controlled. The apparatus includes a counter electromotive force detector for detecting a counter electromotive force generated at a motor of a compressor. A stroke calculator calculates a stroke estimation value of the compressor on the basis of the counter electromotive force, and a stroke controller controls a stroke of the compressor by varying a voltage applied to the motor on the basis of the calculated stroke estimation value and a stroke reference value.

公开(公告)号：DE10157699A1

公开(公告)日：2002-06-13

申请号：DE10157699

申请日：2001-11-24

Applicant: LG ELECTRONICS INC

Inventor： YOO JAE YOO ,  LEE JAE CHUN ,  HWANG MIN KYU ,  LEE CHEL WOONG

IPC: G01B7/00 ,  F04B17/00 ,  F04B35/04 ,  F04B49/06 ,  H02P25/06

Abstract: The control circuit for an air conditioning coolant compressor has a reciprocation stream phase difference detector to sense the phase differences in reciprocation and flow. A phase difference variation computer determines phase difference variation values and a reciprocation scatter detector compensates for the calculated phase difference variations. A reciprocation control receives the scatter signals to alter the voltage.

公开(公告)号：DE10157700A1

公开(公告)日：2002-06-06

申请号：DE10157700

申请日：2001-11-24

Applicant: LG ELECTRONICS INC

Inventor： YOO JAE YOO ,  LEE JAE CHUN ,  HWANG MIN KYU ,  LEE CHEL WOONG

IPC: F04B17/00 ,  F04B35/04 ,  F04B49/06 ,  H02P23/00 ,  H02P25/06 ,  H02P25/10 ,  H02M5/25 ,  H03K17/567 ,  H03K17/72 ,  G01R19/165

Abstract: Disclosed is a circuit for driving a linear compressor enabling to reduce a cost in detecting voltage and current applied to a linear compressor by decreasing the number of precision resistors. The present invention includes a linear compressor controlling a cooling capacity by varying a stroke through an up-and-down straight-line motion of a piston, an electric circuit part supplying the linear compressor with voltage and current in accordance with a switching signal of an AC switching device through a current detect resistor and the AC switching device wherein a ground terminal is connected between the current detect resistor and linear compressor, a voltage detection unit detecting the voltage applied to the linear compressor by taking the ground terminal as a reference and outputting the detected voltage, a stroke calculation unit receiving the detected current and voltage to calculate the stroke, a speed or an acceleration speed of the linear compressor, and a microcomputer inputting a switching signal for controlling the voltage applied to the linear compressor into the switching device to make a present stroke follow an initial stroke reference.

公开(公告)号：DE10144622A1

公开(公告)日：2002-06-06

申请号：DE10144622

申请日：2001-09-11

Applicant: LG ELECTRONICS INC

Inventor： YOO JAE YOO ,  LEE JAE CHUN ,  HWANG MIN KYU ,  LEE CHEL WOONG

IPC: F04B49/06 ,  F04B17/00 ,  F04B35/04 ,  F04D27/00

Abstract: A unit regulating the maximum stroke (21), compares the maximum stroke value with the current stroke (25). It alters the value of a stored stroke reference value (22), for output. Voltage applied to the compressor motor is controlled (23) in accordance with the new stroke reference value. An Independent claim is included for the corresponding method.

公开(公告)号：EP2140215A4

公开(公告)日：2014-07-23

申请号：EP08712208

申请日：2008-01-26

Applicant: LG ELECTRONICS INC

Inventor： YOO JAE YOO ,  KIM CHANG OH

IPC: F25D29/00 ,  H02M7/10

CPC classification number: F25B49/025 ,  F25B2600/021 ,  F25B2700/15 ,  H02M1/10 ,  H02P27/18 ,  H02P2201/03 ,  Y02B30/741

公开(公告)号：EP2140213A4

公开(公告)日：2015-03-04

申请号：EP08741027

申请日：2008-03-29

Applicant: LG ELECTRONICS INC

Inventor： YOO JAE YOO ,  KIM CHANG OH

IPC: F25D29/00 ,  H02H9/00

CPC classification number: F25D29/006 ,  H02H9/001 ,  H02M1/32 ,  H02M5/45 ,  Y10S323/908

Abstract: A bypass device of a refrigerator connected to an inrush current preventing device bypasses an input power when the input power is applied to the refrigerator, and a controller controls the input power input through the inrush current preventing device in response to a voltage measured by a voltage measuring device, recovers a function of the inrush current preventing device, and drives a compressor. Therefore, a standby time to re-drive the refrigerator is decreased and convenience is enhanced.

Abstract translation: 连接到浪涌电流防止装置的冰箱的旁路装置在输入电力施加到冰箱时旁路输入电力，并且控制器响应于由电压测量的电压来控制通过浪涌电流防止装置输入的输入电力 测量装置，恢复浪涌电流防止装置的功能，并驱动压缩机。 因此，重新驱动冰箱的待机时间降低，便利性提高。