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

| August 4, 2019 Updated
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

dcdc-lt1074-atmega644-laboratory-power-supply-30v-lt6105

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

FILE DOWNLOAD LINK LIST (in TXT format): LINKS-25661.zip

Published: 2016/06/15 Tags: , , , , ,



2 Comments “0-30V 0-3A Adjustable Switching Laboratory Power Supply

  1. Electronics CircuitsElectronics Circuits

    1000W PFC Circuit UC3855

    1KW PFC Circuit UC3855 for its function requires a dc supply voltage of 10 to 20V . His sampling is during normal operation of 17 to 25 ma. The integrated circuit additionally contains the input VCC zener diode of 20V. The maximum current for this diode is, however, only 20 mA [19]. Therefore, it is safer for the diode not to take advantage i.e. to stabilize the supply voltage externally at the level of the lower than 20V.

    REPLY
  2. Elektronisch ProjekteElektronisch Projekte

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

    DC-DC Labornetzteil 0-30V 0-3A LT1074 ist ein Schaltregler Typ step-down (senken) mit einem maximalen Strom von 5 A. das arbeiten mit dem Wert der Eingangsspannung bis 60 V-version (HV) und die Ausgangsspannung kann im Bereich von 2,5 V – 50. Ohne änderung der Schaltung funktioniert die Schaltung mit einer Frequenz von 100 kHz.

    REPLY

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