Free Simple Circuit Diagram
A permanent split capacitor (PSC) motor has a run type capacitor. This capacitor is permanently connected in series with the start winding. This will cause the start winding an auxiliary winding once the motor reached the running speed. It cannot provide the starting boost of a starting capacitor since the run capacitor must be designed for continuous use. PSC motor […]
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Modified split-phase motor with a capacitor in series with the start winding to provide a start “boost” is shown below. The capacitor start motor also has a centrifugal switch like the split-phase motor which disconnects the start winding and the capacitor when the motor reaches about 75% of the rated speed. It creates more starting torque, typically 200% to 400% […]
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Variable output regulator is valuable for your test bench tools. This regulator produce variable voltage source from 1.2 to 17Volts. Series type regulator consist of something equivalent to variable-resistance device, an LM317 for this case. Since series-pass regulator dissipates power and turn it into heat to stabilize the output, this regulator need large heatsink. The hardest power dissipation occurs at […]
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Noise, in amplifier circuit, is generated intrinsically by each components inside the circuit. Resistor, capacitor, and semiconductor generate noises. By simplifying the design of a circuit, we can minimize the noise especially if we can push the number of components to the lowest count. Here is one example of such design. The gain of this low noise amplifier is determined […]
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