Building electronic circuit tutorial (DIY: do it yourself project) is presented in this video. You can learn the basics about schematics and how they are used in electronics in this free home maintenance video. Read Full Story
Our reader Andrea (andrea[dot]perugia[-at-]gmail[dot] com) sent his circuit to us, and he creates the circuit for educational intent. The main purpose is to show that you can toggle an output state electronically, although physically you use only a push button switch. Here is what he said about the cicuit : Read Full Story
In some PLL application, sometimes we need to provide lock indication when the PLL is in locked state. The simplest one is binary indication, 0 or 1 to correspond with lock/unlock condition. This condition should be easy to be presented with a LED lamp. Read Full Story
Autoranging is useful to extend the measurement range of an available ADC (analog-to-digital converter). Autoranging will best implemented for multiplexed input. LTC1257 is appropriate for system autoranging, adjusting an ADC’s full-scale range.
During the conversion process, U2 and U3 receive the full and zero scale codes, respectively, that correspond to a selected multiplexer channel. For example, let channel 2’s span begin at 2V and end at 4.5V. When a host processor wants a co... Read Full Story
Transducers is used in video system to convert optical signal to electrical signal in the acquisition. In the display, transducer is used to convert electrical signal back to light. Transducers often have a transfer function (the ratio of signal in to light out) that is unacceptably nonlinear. Read Full Story
A PLL system can be used to implement an FM demodulator. When a PLL is locked on an FM signal, the VCO tracks the instantaneous frequency of that signal. Since the VCO output tracks the FM signal, and the VCO input voltage is proportional to the VCO output frequency, then the VCO input will be equal to the demodulated signal. Read Full Story
The circuit below is a schematic diagram of a fast pulse detector. At 100 ns or wider pulse width, the detection should be error free. At 60 ns pulse width, the detection error should be under 10%.
This circuit should be used to detect at least 100 ns wide pulse to ensure an error free performance. [Circuit's schematic diagram source: Linear Technology Application Notes]
Possibly Related Articles:Fast Peak DetectorFast peak detector requires special amplifier features. The output stage ... Read Full Story
A fast peak detector similar but faster than previous peak detector, can be implemented using open loop configuration. Here is the schematic diagram of the circuit:
In this design, D1 is the detector diode and D2 is a level shifting or compensating diode. A load resistor RL is connected to – 5V and an identical bias resistor, RB, is used to bias the compensating diode. This equal value resistors RL and RB make sure that the diode drops are equal. Low values of RB and RL (1k to 10k) yield... Read Full Story
Fading a video signal is not as simple as attenuating the whole signal, since there will be a point where the sync amplitude becomes too small. Not only the fading effect, but you’ll get also a rolling and tearing picture if you do this. One solution for this can be as complex as running a separate sync signal into the monitor, but this is not a low cost solution. Read Full Story
