OTA as Programmable Resistor, Grounded Resistor and Floating Resistor: OTA as a Programmable Resistor: We may employ Ic OTA as a programmable resistor whose resistance is controlled by controlling current Ic. We can define resistance,…
OTA Voltage Amplifier Circuit Diagram: A basic OTA voltage amplifier circuit diagram is shown in Fig. 41.4. At room temperature (T = 300 K), the output current, Now, if the whole output current Iout flows…
Operational Transconductance Amplifier (OTA): The operational amplifiers considered up to this point have been voltage amplifiers. The input signal is a voltage and the output signal is a voltage. Another type of op-amp is an…
Uninterruptible Power Supply (UPS) - Block Diagram and its Workings: Uninterruptible Power Supply (UPS) - Most of us take the mains ac supply for granted and use it almost casually without giving the slightest thought…
Constant Voltage Transformer (CVT) - Construction and Working Principle: With the popularization of PCs, the constant voltage transformers (CVTs) have also become equally popular. The Constant Voltage Transformer is simply a magnetic transformer of a…
Difference between Linear Power Supply and SMPS: The Difference between Linear Power Supply and SMPS is given in table below Features Linear Power Supply SMPS Efficiency 25-50 per cent 65-75 per cent Temperature rise 50-100…
Switch Mode Power Supply (SMPS) or Switching Regulators: Switch Mode Power Supply (SMPS) - The regulated power supplies described earlier were basically linear voltage regulators. A linear voltage regulator possesses many limitations: The input transformer…
What is Dual Power Supply? -Circuit Diagram and its Workings? Many discrete and ICs need bipolar (dual power supply or ± V) supplies. This can be easily accomplished with two three-terminal regulators, as illustrated in…
What is Current Boosting in Voltage Regulator? Current Boosting in Voltage Regulator - IC723 regulator is limited to provide a maximum current of 140 mA. To increase its current capacity, we add a transistor Q…
What is Current Foldback? The current limiting technique maintains a constant load current at some specified value and under overload condition, the Vout drops to zero. But, in case of short circuiting under overload conditions…