Oct 25, 2024 · How do we usually design an adjustable voltage-stabilized power supply circuit? The adjustable DC voltage-stabilized power supply adopts the current international advanced
Apr 23, 2013 · I have a 24V 4.5 amp (108 Watt) power supply. I know most Voltage regulators take a higher voltage and regulate it to a lower voltage. Is there a way to increase the voltage
Nov 2, 2023 · Outdoor Stabilizers are smart devices designed to automatically fine-tune the incoming voltage, maintaining a steady and safe output within the desired range. This, in turn,
The output voltage of a power supply is usually a fixed voltage, but sometimes it may be necessary to adjust that output voltage. For example, you may be able to reduce the power dissipation in a low-voltage high-current processor – while still keeping performance high – by adjusting the voltage fed to the core.
AC-DC power supplies and DC-DC converters often feature an output voltage adjustment, the range of which is stated in the datasheet. An AC-DC power supply may have a potentiometer accessible to set the output voltage from the original factory set point. (See Figure 1).
Power supplies are usually set to a fixed output voltage to supply an electrical load with energy. Certain applications, however, require a variable generated voltage. This article will show how output voltages of a power supply may be adapted on-the-fly using dedicated digital-to-analog converters (DACs) developed for such purposes.
The stabilization of the output voltage is done using a TL431. This is a shunt regulator with a refence voltage and an input pin to adjust the output voltage. The data sheet of this device can be found on the internet. I located the resistors that are responsible to set the output voltage. They are named R10 and R14 on the pcb.
Using AVS allows the processor to optimize the core voltage, thus improving performance and reducing power dissipation. This is just one example of how to create an adjustable-output power supply. For more information, see my latest Power Tips post on EETimes.
Moving to a Different Country: If you are relocating to a different country or traveling to a region with a different voltage standard, you will need to adjust the PSU input voltage to match the local electrical system. This ensures that your PSU can effectively convert the incoming AC power into the appropriate DC voltage required by your devices.
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