Home > Basic Circuits > 555 neon light high frequency and high voltage source circuit diagram

555 neon light high frequency and high voltage source circuit diagram

Source: InternetPublisher:无人共我 Keywords: Circuit diagram neon lights high frequency and high voltage Updated: 2021/03/15

This power supply is composed of a time base circuit 555 as the core, and the circuit is as shown in the figure. 555 and R1, R2, C2, etc. form a multivibrator with an oscillation frequency of f=1.44/(R1+2R2)C2

The oscillation frequency of the parameters shown in the figure is 17.8kHz, and the duty cycle of the output pulse is close to 1:1.555. After the output is cut by D3 and other bottoms, it drives the high-frequency amplifier VT1. Due to the access of the base D3 and LED1, the amplifier It works in Category C status. C5 is used to prevent the occurrence of reverse peak voltage and protect the transistor VT1. The secondary of the amplifier transformer can output a high-frequency voltage of about 12500V, which can be used to drive a 3-6m long neon lamp to ignite and glow. VT1 uses high-power tube 3DK308A or BU406, its electrical parameters are 7A/400V/60W, ft is not less than 6MHz.

555<strong><strong>Neon Light</strong></strong><strong><strong>High Frequency High Voltage</strong></strong>Source<strong><strong>Circuit Diagram</strong></strong>. jpgck="window.open(this.src)" alt="Click to see larger image"/>

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

About Us Customer Service Contact Information Datasheet Sitemap LatestNews


Room 1530, 15th Floor, Building B, No.18 Zhongguancun Street, Haidian District, Beijing, Postal Code: 100190 China Telephone: 008610 8235 0740

Copyright © 2005-2024 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号