Free electronic circuit design and schematic diagram
When you insert peripherals, a problem can occur : The sudden load on the port’s 5V pin usually isn’t purely resistive. This load has a capacitive component that can cause a rapid and high-amplitude rise in current to levels well above the 500mA limit for USB port. When you connect a too-large hard disk to the port, a similar problem […]
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This is a RS232 Line Driver Power Supply circuit. This circuit can gives an output of ± 12V at ± 40 mA and only requires an input voltage as low as 4.2V. The efficiency of this circuit is better than 70%. This circuit provides a line regulation of ± 0.08% and a load regulation of ± 1.25% (from 10% to […]
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Field strength meter is a “must have” equipment if you’re dealing with radio transmitter electronics. Here is one example of this kind of circuit that works for 2.4 GHz band: An optional amplifier can be inserted after the rectification, so it can be used to boost small signal. This circuit works only for short distance transmitter since the signal must […]
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It’s good to use CS3310 because CS330 is a complete stereo digital volume control designed specifically for audio systems. This device has features like 16 but serial interface that controls two independent, low distortion audio channels. An array of well-matched resistors and a low noise active output stage that is capable of driving a 600 Ohm load is included in […]
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Generally, specifically combined ICs perform a control task. We can carry out simple controls using analog ICs, such as operational amplifier circuitry. The basic component of “Control Electronics” is an integrated circuit (IC). IC is a small electronic device made out of a semiconductor material. According to equation 1, this analog circuit calculates PID control response. Sensor signal VIN is […]
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The purpose of developing this circuit is to allow watch crystals to be used in an existing CMOS oscillator circuit that was to run from a 12 V supply. But there is a problem, these crystal only work uo to a supply voltage of about 6V. If the supply voltage is more than 6 V then the crystal will be […]
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This is simple circuit for Guitar Pre-Amplifier. This circuit has some advantages such as it will work under tough conditions, very simple and has high input impedance. This circuit will not load down electric guitars because of the high input impedance. This circuit can be used to amplify microphones. Here is the circuit:A 9-volt battery is typically used as power […]
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