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·         1.5V TOUCH ACTIVATED SWITCH
A single 1.5v silver oxide button cell powers this complete touch activated switch circuit for 5 years.  It features both a normally open and a normally closed set of solid state switch thermals.  It also has an adjustable sensitivity, which can be set for a touch capacitance change as small as 1 picofarad.

·         12V TOUCH SWITCH EXCITER CIRCUIT
This circuit is designed to generate a 20KHz pseudo sine wave signal that can power about 50 remote touch activated switch circuits.  It can support a cable length of about 2500 feet.  A typical remote switch circuit is also shown as well as a receiver circuit for those switches.

·         3V CAPACITANCE PROXIMITY SWITCH
This circuit was designed to provide a touch activated switch function without an external power supply.  It draws so little power that a single 3v battery will operate the circuit for many years.  It is discussed in more detail in the section on Capacitance Proximity Switch Technology.

·          5 VOLT MOMENTARY OPERATION TOUCH SWITCH
This simple circuit uses a single IC to form a nice touch switch circuit.  A single transistor forms the remote active switch sensor.  Multiple switches can be wired in parallel.  The switch circuit can be located about 500 feet from the control circuit.

·         5V CAPACITANCE TOUCH ACTIVATED MOMENTARY SWITCH
This circuit is discussed in more detail in the section on Capacitance Proximity Switch Technology. The circuit is powered from a standard +5v supply. It has both a source and sink output that change state whenever a metal button connected to the circuit is touched. An earth ground reference is required.

·         9v POWERED XENON PHOTOFLASH CONTROLLER
This 9v battery powered circuit is designed for remote control flash needs. A charge control circuit turns off the high voltage generator when the photoflash capacitor is fully charged. A neon lamp is included to indicate when the system is ready to flash.

·         AIR TRANSPARENCY MONITOR, XENON FLASH TRANSMITTER
This is the matching transmitter for the above receiver. The transmitter launches powerful 1000-watt light pulses that last about 20 microseconds.

·         HIGH POWER TOUCH SWITCH EXCITER CIRCUIT
If you have hundreds of touch switches that need an excitation signal, then this circuit is what you need.  Its 20KHz 20v peak to peak output signal can supply up to 3 watts of touch switch excitation power.

·         LINE POWERED XENON FLASH TRANSMITTER
This line-powered xenon flash circuit drives a small camera type flash tube. It has an optical isolator to allow the flash to be safely triggered from some remote device. A flash rate of 2Hz is possible with the circuit.

12 Volt Strobe Circuit:  this circuit uses12V DC instead od mains AC. This is very good idea if you don't want to mess with direct mains voltage connected circuit or you want to run  Strobe from batteries. (added 4/02)

741 Based Light Sensor:  CdS photocell used for light/dark controlled relay (added 5/02)

Adjustable Strobe Light:  120-Volt mains power source, up to20 Hz flash rate (added 4/02)

Beat Tracking Strobe:  project description using AT90S8515 microcontroller and some electronics (added 5/03

Easy Xenon DC-to-DC Converters!:  (design circuit added 8/02)

Emergency Strobe Flasher Generates 250V:  08/05/99 EDN-Design Ideas / (added 8/05) Figure 1 shows a complete circuit for an emergency lamp that operates from a 12V automotive battery. The xenon flash tube requires a 250V-dc anode voltage and a 4-kV trigger pulse. To generate the 250V dc, IC1, a switching regulator controller, and T1, a standard Versa-PAC transformer, operate in the ....

Flash Slave Trigger:  Flash slaves are used when you need to supplement1-flash unit with1-or several more. This slave trigger simply triggers those other units. It does this by "seeing" the first flash (using a phototransistor) and triggering the other flashes a few microseconds later. The sensitivity of the circuit is adjustable to compensate for ambient light or dimmer than usual master flashes. (added 5/02)

Hacking the Kodak Max Single Flash Camera into a Self Repeating Strobe:  this approach is recommended mainly for homebrewing a strobe that is powered by a single1.5 volt battery. If you can use a higher supply voltage, there are better ways to do this. (added 4/02)

Luxeon for Camera Phone Flash PDA and DSC Applications:  This reference design outlines the key considerations in the construction of a solid state, high performance flash solution utilizing Luxeon LED technology. This design integrates Lumileds’ high power Luxeon Emitters product with a cost effective lens solution to provide the necessary light output and illumination pattern suited to digital still camera (DSC) and mobile phone camera flash applications. applications.  (added 6/06)

LX1995 LED Driver: Camera Flash Application (AN-30):  Application Note 30 from Microsem  (app note added 6/06)

Mini Pocket Strobe Circuit:  works from two1.5-Volt AA batteries, based on modified camera flash unit (added 6/03)

Mini Strobe Light using LED:  adjustable for flash rates between40 Hz and166 Hz, based on555 Timer (added 6/03)

Miniature Strobe Light:  (electronic Circuit / Schematic added 10/04)