Xenon Low Voltage Lighting | Electronic Project Circuits

Posts Tagged ‘xenon low voltage lighting’

LED Stroboscope

This circuit can be improved a bit by using a more stable STROBE RATE oscillator or by using a regulator to power the oscillator and associated logic. If you do this you should switch to 74HC class devices.

source: http://www.members.shaw.ca/novotill/LedStroboscope/index.htm

Be the first to comment - What do you think? Posted by admin - May 5, 2009 at 8:15 am

Categories: LED Flasher, Lighting Tags: led display sign, light security strobe, xenon low voltage lighting

Video Buffer with Strobed DC Restore

The GB4551 is a high performance video buffer with DC restore primarily used for accurate back porch clamping. The circuit features a wideband differential amplifier that can be configured as a gain stage. The output signal voltage is limited to +2V above the clamp level in order to prevent damage to crosspoints or other circuits connected to the output. [...]
Source: http://www.audiovisualizers.com/madlab/pdfschem/wicked.pdf

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3-6V Xenon Strobe Light by IC 555 and IRF9Z20 This circuit used to come as a kit from a surplus supplier, but probably isn’t available anymore. It shows a few novel concepts such as using a 555 as a pulse width modulator (PWM)[...]
Video Activated Relay This simple circuit from the May 1996 Think Tank column of Popular Electronics activates a relay when it senses a composite video signal. This allows you to use the tuner built into your VCR [...]
VHF Video Transmitter by 2N3904 This circuit is a powerful video sender in VHF band. The modulator section is designed to operate on either channels 7 to 13 or 14 to 29. For channels 7 to 13,[...]
Video Tracer For Trouble-Shooting This circuit was designed as an aid to installers and maintainers of video systems. It is basically a video sync separator (IC1) followed by a LED and buzzer driver (IC2, Q1 & Q2).[...]

Be the first to comment - What do you think? Posted by admin - April 20, 2009 at 10:20 am

Categories: Digital, Lighting Tags: Video Buffer, xenon low voltage lighting, xenon strobe light circuit

3-6V Xenon Strobe Light by IC 555 and IRF9Z20

This circuit used to come as a kit from a surplus supplier, but probably isn’t available anymore. It shows a few novel concepts such as using a 555 as a pulse width modulator (PWM), and series/parallel camera flash transformers.
The 555 is set up as a pulse width modulator (the off (low) time being set by the trimmer). The output at pin 3 is connected to the gate of the P-channel MOSFET (IRF9Z20) through the 100R resistor to prevent parasitic oscillation of the transistor. A low signal at pin 3 causes the MOSFET to turn on, thus the potentiometer controls the output power, and somewhat the flash frequency, by varying the duty cycle of the 555 and in turn the MOSFET.