In this post we discuss the construction of a DC UV germicidal lamp ballast circuit which can be used for driving any standard 20 watt UV lamp through a 12 […]
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How Laser Microphones or Laser Bugs Work
A laser microphone is a security monitoring gadget in which a laser beam is used for detecting audio vibrations across faraway targets, which are normally walls or glass of homes […]
Automatic Light Sensitive Switch with Adjustable Dawn or Dusk Switching
This automatic ON/OFF light switch features a selector switch which facilitates the lamp (load) either to switch ON during night and switch OFF during day, or the opposite, that is […]
RF Amplifier Circuits and RF Converters
In this post we will discuss a few high frequency RF converter and preamplifier circuit designs which can be used for amplifying or enhancing the reception of an existing RF […]
Simple FET Circuits and Projects
The Field-Effect Transistor or the FET is a 3 terminal semiconductor device which is used for switching high power DC loads through negligible power inputs. The FET comes with some […]
The Role of Inductor Coil in SMPS
The most crucial element of a switched mode converter or an SMPS is the inductor. Energy is stored in the form of a magnetic field in the core material of […]