Search Results for: pre-regulation circuits
To extend the measurement range of an available ADC(analog to digital conveter) we can use this autoranging. If it implemented on multiplexed input, this circuit will give best result. To adjust an ADC’s full-scale range we use a system autoranging that use LTC1257 because it is appropriate for system autoranging. During …
Read MoreFading a video signal can’t be done simply by attenuating the composite signal, since the synchronization signal may drop below unacceptable level. Here a circuit to overcome the problem: Most of video signals will works with this circuit, except for very noisy or distorted signals. The rest circuit is an LT1251 video fader …
Read MoreGamma correction need to be applied in video processing since the transfer function of video acquisition and video display is non linear. Here is the schematic diagram of a gamma circuit: If gamma value equal to 1, the the transfer function is linear. Typical CRT usually have gamma factor from about 2.0 to …
Read MoreThis is true subwoofer circuit. This circuit is used for 15- to 18-inch woofers and will not work with 8- or 6- inch “subwoofers.” It has bass-reflex, a good infinite-baffle, or foldedhorn enclosure, and driven by driven by an amplifier with at least 100 watts. This circuit will most useful for home theater applications, which …
Read MoreCapacitance meter is one instrument that you should have in your toolbox if you are an electronics hobbyist, or if you’re a professional electronic technician. If you can’t afford to buy such instrument or you you can’t find it on your local store then here is the good news: you can build your own capacitance …
Read MoreWhat is A pH Meter? A pH meter is actually a precise voltmeter that measures the generated voltage of a pH electrodes. The requirement of such meter is high input impedance and has the gain of voltage-pH conversion. The standard pH probe generate voltage about 59 mV per pH, so all we …
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