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JPH0822263A Expired / Lapsed JP ⏱️ 0.0 years remaining

LED lighting circuit

Assignee: Toshiba Corp
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Filing: 1994-07-08
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Granted: —
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Expires: 2014-07-08
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Abstract

Abstract Translated from Japanese (57)【要約】 【目的】 外付部品や外部入力信号を用いずに、出力電 流値を任意に制御することができるLED点灯回路を提 供することである。 【構成】 入力の周波数を電圧に変換する周波数/電圧 変換回路と、前記周波数/電圧変換回路の出力電圧を基 準電圧としてこれを電流変換する電圧/電流変換回路 と、前記電圧/電流変換回路の出力電流を任意倍して外 部のLEDに供給するミラー回路とを備えたものであ る。 (57) [Summary] [Object] To provide an LED lighting circuit capable of arbitrarily controlling an output current value without using an external component or an external input signal. A frequency / voltage conversion circuit for converting an input frequency into a voltage, a voltage / current conversion circuit for converting the output voltage of the frequency / voltage conversion circuit into a reference voltage into a current, and the voltage / current conversion circuit And a mirror circuit for multiplying the output current arbitrarily and supplying it to an external LED.

Inventors

  • 👤 Hiroyuki Kobayashi
  • 👤 浩行 小林

Bibliographic Details

Application Number —
Jurisdiction JP
Data Source google_patents
Last Synchronized 2026-11-06 02:07
CPC Classifications
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