Monthly Archives: November 2014

Classification of Power Semiconductor Devices

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Classification of Power Semiconductor Devices                            Semiconductor devices having high voltage and current ratings are known as Power Semiconductor Devices. The Power Devices are classified into various categories based on their Turn ON and Turn OFF capability, Type …

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Combining and Selecting Resistor and Capacitor Values on op-amps

Combining and Selecting Resistor

Combining and Selecting Resistor and Capacitor Values on op-amps   Combining Op-Amp Stages Combining op-amp stages to save money and board space is possible in some cases, but it often leads to unavoidable interactions between filter response characteristics, offset voltages, noise, and other circuit characteristics. The designer should always begin …

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Virtual Ground on operation amplifiers

Single-Supply Operation at V CC /2

Virtual Ground on operation amplifiers Single-supply operation requires the generation of a virtual ground, usually at a voltage equal to Vcc/2. The circuit in Figure 2 can be used to generate Vcc/2, but its performance deteriorates at low frequencies. R1 and R2 are equal values, selected with power consumption vs …

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