JPH02114953U

JPH02114953U -

Info

Publication number: JPH02114953U
Application number: JP2229089U
Authority: JP
Priority date: 1989-02-28
Filing date: 1989-02-28
Publication date: 1990-09-14

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示すブロツク構成
図。第２図はその詳細を示す回路図。第３図ない
し第５図はその動作中における各部の論理レベル
を示す説明図。第６図はその動作を示すタイミン
グチヤート。第７図は従来例を示すブロツク構成
図。１０，８０……信号発生部、１１……第一信号
発生回路、１２……分周回路、１３……第二信号
発生回路、２０……論理回路部、２１，２２，４
５，４６………インバータ素子、２３，２４，２
５，２６……ナンド素子、２７，２８，２９……
アンド素子、３０……オア素子、４０……点灯色
設定部、４１，４２……スイツチ、４３，４４，
５４，５５……抵抗、５０……電流増幅部、５１
……ＰＮＰ型半導体スイツチ、５２，８１，８２
，８３………ＮＰＮ型半導体スイツチ、５３……
ＮＰＮ型トランジスタ、６１，８４，８５，８６
……昇圧コイル、６２……第一発光ダイオード、
６３……第二発光ダイオード、７０，９０，ＶＤ
Ｄ……電源、８７，８８，８９……発光ダイオー
ド、Ｓ１……第一パルス信号、Ｓ２……第二パル
ス信号、Ｓ３……第三パルス信号、Ｓ４……第四
パルス信号、Ｓ５……第五パルス信号、Ｓ６，Ｓ
７……制御信号。 FIG. 1 is a block diagram showing an embodiment of the present invention. FIG. 2 is a circuit diagram showing the details. FIGS. 3 to 5 are explanatory diagrams showing the logic levels of each part during its operation. FIG. 6 is a timing chart showing the operation. FIG. 7 is a block diagram showing a conventional example. 10, 80... Signal generation section, 11... First signal generation circuit, 12... Frequency dividing circuit, 13... Second signal generation circuit, 20... Logic circuit section, 21, 22, 4
5, 46...Inverter element, 23, 24, 2
5, 26... Nando element, 27, 28, 29...
AND element, 30...OR element, 40...Lighting color setting section, 41, 42...Switch, 43, 44,
54, 55...Resistor, 50...Current amplification section, 51
...PNP type semiconductor switch, 52, 81, 82
, 83...NPN type semiconductor switch, 53...
NPN type transistor, 61, 84, 85, 86
...boost coil, 62 ... first light emitting diode,
63...Second light emitting diode, 70, 90, VD
D...power supply, 87,88,89...light emitting diode, S1...first pulse signal, S2...second pulse signal, S3...third pulse signal, S4...fourth pulse signal, S5... Fifth pulse signal, S6, S
7...Control signal.

Claims

[Claims for Utility Model Registration] A first signal generating circuit that generates a first pulse signal, a frequency dividing circuit that outputs a second signal obtained by dividing the frequency of the first pulse signal by 1/2, and a frequency dividing circuit that outputs a second signal obtained by dividing the frequency of the first pulse signal by 1/2; a signal generating section including a second signal generating circuit that generates a three-pulse signal; a current amplifying section including a PNP semiconductor switch and an NPN semiconductor switch; one end of the PNP semiconductor switch and the other end of the PNP semiconductor switch; a first light emitting diode having an anode connected to the other end of the boost coil and a cathode connected to the other end of the PNP semiconductor switch; a second light emitting diode whose cathode is connected to one end of the booster coil at the other end of the semiconductor switch; and a fourth and fifth lighting color for generating pulse signals for controlling the lighting color of the first and second light emitting diodes. a setting unit, inputting the first to fifth pulse signals and intermittent the first pulse signal with the third pulse signal;
A light emitting diode lighting circuit, comprising: a logic circuit unit configured to time-divisionally output a control signal for the PNP type semiconductor switch and a control signal for the NPN type semiconductor switch in response to the second pulse signal.