0-30V 0-3A Adjustable Switching Laboratory Power Supply

DC-DC Laboratory Power Supply 0-30V 0-3A LT1074 is a switching regulator type step-down (lowering) with a maximum current of 5 A. Can work with the value of the input voltage up to 60 V version (HV) and the output voltage can be set in the range of 2.5 V – 50 In. Without modifying the circuit works the circuit with a frequency of 100 kHz.

Laboratory Power Supply Circuit Schematic

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The stabilized power supply with a controllable output voltage 0 – 30 V and a controllable current limitation 0 – 3 And. The source combines the use of the transformer, the switching regulator and the subsequent application of a linear regulator for better output characteristics. Implemented is also a measurement of the output voltage and current of the microcontroller, atmega644.

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LT6105 The use of this circuit replaces the need to scan the current on the sensing resistor of the normal value (often 1 Ω), on which arises a large voltage drop and thus a large power loss including an increase in the internal resistance of the source. When using this circuit is the current sensed by the differential amplifier to the precision resistor of small value (for example, 0.01 Ω), which can be connected in any branch of the sources. Since this resistance value is small, there arises in him even a small power loss (given by the product of the resistance and the squared current). LT6105

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srcb 0-30v switchmode lab power supply circuit pcb schematic all files alternative links:

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