Camera Electronic Circuits, Page 4

Camera Circuits Page 4
Camera Circuits: #'s - B C- F G-L M - Z

Last Updated on: Friday, March 23, 2012 04:35 PM

Circuits Designed by Dave Johnson, P.E. :

Remote TV Camera Power
A while back I received an email from a company with a problem. They needed a security camera installed at some remote location. The camera was a high quality color camera sending out standard NTSC video through a long 500 foot 50 ohm coax cable. With some difficulty they got the coax strung. They were told that there would be AC power near the camera location to power that device. But, they then learned that in fact, there was no power available. They thought about using a solar panel and a battery but they decided to call me for help instead. Was there some way to power the camera without stringing another cable?...[Designed by David A. Johnson]

Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

Mercury battery replacement - Many old cameras and other devices used mercury batteries, which are no longer available. Here is an analysis of the problem, and a few solutions. [Manfred Mornhinweg]

Model Rocket with Video Camera - (circuit / schematic design added 10/06)

PCB Grounding System & FAN2001/FAN2011 High Performance DC-DC Converters/ AN-42036 - Fairchild Application Notes / (app note added 6/06)

Photo Flash at 1.5 Volts - This model is very simple and charges as long as you hold the pushbutton (added 4/05) [Reverse engineered schematic by Stepan Novotill]

Photo Flash Charger Minimizes Parts Count - 10/22/98 EDN-Design Ideas Photo-flash and strobe devices operate by discharging a high-voltage capacitor into a bulb. Charging the capacitor from a battery or other low-voltage source requires a step-up dc/dc converter to boost the voltage, typically to 300V. One way to generate the high voltage.... [Design Idea by Steven Chenetz, Micrel Semiconductor, San Jose, CA]

PIR Camera - A simple automatic motion-detection Digital Camera. (circuit added 05/09)

R/C Digital Camera Controller - (electronic circuit added 4/05)

R/C Helicopter Camera - (electronic circuit added 4/05)

RC Controlled Digital Camera - Fair Warning, site contain annoying popups. The aim of this project was to get a digital camera into a small electric radio controlled (RC) airplane and still have it fly. The airplane shown, a park flyer, weighs between 400 and 550 grams depending on the size of battery and wing configuration that I use.... (added 6/06)

Serial Cable for Casio Digital Cameras - ….(design added 08/08) [Site is under construction right now]

Simple phototimer controls load - 18-Apr-02 Issue of EDN In industrial and home applications, the need sometimes exists for a device that, after activation by some physical effect, such as light, temperature, or sound, switches a load on for a predetermined time. The load, such as a lamp, motor, solenoid, or heater, usually derives its power from the ac line.... [Design Idea by By Abel Raynus, Armatron International, Melrose, MA]

Solar Powered Nestbox CCTV Camera - Observe wildlife inside a nestbox with a solar powered wireless CCTV camera…. [REUK - Renewable Energy UK website]

Still Camera - Intersil Application Block Diagram (app note added 6/06)

Using the AD7142 & a Capacitive Sensor to Develop a Single-Push Digital Shutter Button - AN-833 Analog Devices Application Notes (app note added 6/06)

ZXSC100 Power Supply for Digital Still Camera - Zetec Semiconductors Applications Notes Presented in this applications note is a typical sytem power supply design for a digital still camera. The solution is based on ZXSC100 DC-DC boost converter which provides an efficient and cost effective design. Conversion is from a two cell alkaline battery, 3V to 2V, to a regulated 3.3V output with a maximum load current of 100mA. All performance graphs associated with this design are provided in application note. (app note added 2/06)

Camera Circuits: #'s - B C- F G-L M - Z