VOLTAGE CONTROLLER FOR CAR GENERATOR

PURPOSE: Voltage controller for car generator is provided which detects frequency changes in the generator top voltage and the generator duty, and when the two detected values change more than the standard from the rapid change of the outside load changes, blocks the current in the field coil and st...

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Bibliographic Details
Main Author NA, JAE HO
Format Patent
LanguageEnglish
Korean
Published 15.02.2000
Edition7
Subjects
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Summary:PURPOSE: Voltage controller for car generator is provided which detects frequency changes in the generator top voltage and the generator duty, and when the two detected values change more than the standard from the rapid change of the outside load changes, blocks the current in the field coil and stops the generation. The device decreases the load on the engine and increases the driving power. CONSTITUTION: The device is comprised of the generator (1000) including the armature coil (101, 102, 103) and the field coil (104), the three phase rectifier (110) connected to each armature coil (101, 102, 103) and converts the AC output to the DC, the battery (BAT) which is charged with the DC, the first measurement unit (IC1) which compares the battery voltage with the standard voltage, the load reaction unit (130) which calculates the top voltage change of the armature coil and the duty change of the field coil and outputs the signal based on whether the changes exceeds the standard, the voltage detection unit (140) which gets the battery voltage (B) and the armature coil top voltage (P1) and detects the voltage drop, the first AND gate (150) which gets the voltage detection unit (140) output and outputs the signal, and the pulse width modulation unit (120) gets the outputs from the first measurement unit (IC1) and the first AND gate and controls the power approved to the field coil (104). 본 발명은 차량용 발전기의 전압조정기에 관한 것으로, 상세하게는 외부부하의 급격한 변화시 발전기 상전압의 주파수 변화량과 발전기의 듀티 변화를 감지하여 두 가지 모두가 규정값 이상으로 변동할 때 계자코일에 흐르는 전류를 차단시킴으로서 발전을 중지하여 엔진에 가해지는 부하를 줄여서 구동력을 증대시킬 수 있는 차량용 발전기의 전압조정기에 관한 것이다. 본 발명에 따른 차량용 발전기의 전압조정기에 의하여, 외부부하의 급격한 변화시 발전기 상전압의 주파수 변화량과 발전기의 듀티 변화를 감지하여 규정값 이상으로 변동할 때 계자코일에 흐르는 전류를 차단시켜 발전을 중지하여 엔진에 가해지는 부하를 줄여서 구동력을 증대시킬 수 있는 발전기용 전압조정기를 제공하고자 하는 것이다.
Bibliography:Application Number: KR19980029882