Category Archives: Uncategorized

We will only ship to PayPal’s Confirmed Address. This auction is for 5 pieces of 3W White LEDs mounted on stars   Specifications: Intensity:                129.5~147.7 Lumins Viewing Angle:         140° Forward Voltage:      3.2V-3.8V Forward Current:      700mA @ 25C° Color Temp:            5500K … Continue reading →

ROTARY ENCODER – a rotary switch that just keeps turning – uses gray code An LED can be used as a photodiode used for light detection as well as emission. http://en.wikipedia.org/wiki/LED_circuit     A cathode is an electrode through which … Continue reading →

The coulomb (symbol: C) is the SI derived unit of electric charge, transported by a steady current of one ampere in one second. 1C = 1A * 1s One coulomb is also the amount of excess charge on the positive … Continue reading →

The MOSFET power output portion of the circuits used in various projects on this site serves to increase their power handling capacity. MOSFET (Metal Oxide Semiconductor Field Effect Transistor) – A voltage controlled transistor for amplification and switching. The circuits … Continue reading →

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