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From beta-dyne.com
For non-isolated switching voltage regulators (SVR or SR), such as our SRAD20 series, the feedback control of the PWM is used to adjust the output voltage of the regulator. The PWM voltage reference is 2 volts with an accuracy between 1% and 3%. When the converter is required to provide a more accurate output voltage the connection in Figure 2 can be used. Choosing 0.1% accurate resistors and a high open loop gain amplifier for A1 (100–120dB), the overall output voltage of the converter will be within 0.2% to 0.6%. applications where additional short start time is required, such as high output voltage charging high output capacitors, the circuits in Figures 3 and 4 can be used. Figure 5 shows the turn on delay and soft start time generated with the external networks of Figures 3 and 4. In Figure 6, a current output digital-to-analog (D/A) converter is used to drive the output pin (Pin 9) of the SRAD20.
Products & Services
Voltage-to-frequency converter chips provide a signal frequency output as a function of an analog input voltage.
IC voltage regulators are three-terminal devices that provide a constant DC output voltage that is independent of the input voltage, output load current, and temperature. IC voltage regulators are used in power supplies that hold their output voltage constant over a wide range of load variations.
Voltage regulators are devices that enable generators to provide voltage control capabilities.
IC power supplies are manufactured as integrated circuits.
IC switching voltage regulators are integrated circuits (ICs) that store energy in an inductor, transformer, or capacitor and then use this storage device to transfer energy from the input to the output in discrete packets over a low-resistance switch.
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Topics of Interest
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