Tag Archives: voltage regulators

Switching Voltage Regulators

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Switching Voltage Regulators All of the voltage regulators we have discussed so far are series regulators, also sometimes called the linear regulators because the pass transistor used in such a regulator operates in the active region. Series regulators are very popular and meet many of our needs. The main drawback… Read more »

Switching Regulators Using LM 2575 and LM 2577

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Switching Regulators Using LM 2575 and LM 2577 Switching regulators are available is different circuit configurations including the flyback, feed-forward, push-pull, and non-isolated single-ended or single-polarity types. Also, the switching regulators can operate in any of three modes : step-down, step-up, or polarity inverting. LM2575 switching regulator LM 2575 series… Read more »

LM340 Series Voltage Regulators

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Three terminal voltage regulators 3 terminal ic voltage regulator This series is typical of the three-terminal voltage regulators. The block diagram is shown in figure. The built-in reference voltage VREF drives the non-inverting input of an op-amp. The operational amplifier consists of several stages of voltage gain. Because of the… Read more »

IC Voltage Regulators

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IC voltage regulators are versatile and relatively inexpensive and are available with features such as a programmable output, current-voltage boosting, internal short-circuit current limiting, thermal shutdown, and floating operation for high voltage applications-Voltage regulators comprise a class of widely employed ICs. Regulator IC units contain the circuitry for reference source,… Read more »

IC 723 Voltage Regulators

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IC 723 Voltage Regulator Figure shows the basic circuit of an IC 723 voltage regulator. This IC has a voltage reference source, an error amplifier, a series pass transistor, and a current limiting transistor all contained in one small package. The device can be connected to operate as a positive… Read more »