Variable Switching Regulator Circuits
#switching regulator
#variable voltage
#power supply
#DC-DC converter
#LM317
#adjustable output
#voltage control
#efficiency
#circuit design
#electronic components
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current limiter circuit diagram
The LM117/LM317 from National Semiconductor Corporation is a three-terminal adjustable positive voltage regulator integrated circuit (IC). The output voltage range of the LM117/LM317 is from 1.2V to 37V with a load current capability of up to 1.5A. It is straightforward...
35W switching power supply circuit having a set-top box output of 5
A 35W switching power supply circuit designed for a set-top box output is depicted in Figure 5. It features five distinct voltage outputs: Uo1 (+30V, 100mA), Uo2 (+18V, 550mA), Uo3 (+5V, 2.5A), Uo4 (+3.3V, 3A), and Uo5 (-5V, 100mA). The...
Remote tracking circuit schematics
The circuit consists of two main components: (1) a power supply circuit featuring a transformer (T) that steps down AC 220V to 33V, followed by a full-wave rectifier, a filter, and a three-terminal regulator that outputs +24V. This circuit also...
Variable DC Power Supply
This power supply is based on the LM317 Variable Regulator. The input of the regulator needs to be around 28 Volts DC and it will output a DC voltage from 1.25vdc to 25 vdc. To adjust the output voltage simply...
250 Watt PC power Supply
Up to 10 A continuous output current, or operation with 50 % ESD and 18 A peak current are possible without a fan if sufficient natural air flow is present and the ambient temperature does not exceed 30 °C. A...
Lighting controller circuit
The circuit operates with a controller that includes a power supply circuit, a control circuit, and an audio amplifier, which are three distinct components. The power circuit comprises diodes VD1 to VD4, resistor R1, capacitor C1, LED1, LED2, and additional...
LM317 Adjustable Power Supply
This document outlines the process of constructing an adjustable power supply utilizing the LM317 integrated circuit (IC). The LM317 is highly versatile, allowing for the creation of a wide variety of compact, high-quality power supply circuits. Various configurations can be...
Switching Regulator with L4972A
The LA9472A is a 2A monolithic step down switching regulator operating in continuous mode and realized in a new BCD technology allowing the integration of isolated, vertical DMOS power transistors with mixed CMOS/bipolar transistors. The device can deliver 2A at...
+5V + 12V boost power supply MAX761
The circuit depicted in the figure illustrates an efficient, low-power step-up DC-DC converter, the MAX761, along with a few external components, which functions as a +5V to +12V boost power supply. Its characteristics include a conversion efficiency of 86% and...