Electronics - voltage regulator

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SUMMARY

The discussion centers on voltage regulators, specifically the 78xx series, which feature three legs: two for input and one for output. It is established that the output voltage of these regulators cannot exceed the input voltage; therefore, using two 12V inputs cannot yield a 24V output. For applications requiring increased voltage, the recommended solution is to utilize DC-DC converters instead of traditional voltage regulators.

PREREQUISITES
  • Understanding of voltage regulator configurations, specifically the 78xx series.
  • Knowledge of electrical components and their functions.
  • Familiarity with DC-DC converter principles.
  • Basic circuit design skills.
NEXT STEPS
  • Research the specifications and applications of the 78xx series voltage regulators.
  • Learn about different types of DC-DC converters and their use cases.
  • Explore circuit design techniques for integrating voltage regulators and converters.
  • Study the impact of input and output voltage relationships in voltage regulation.
USEFUL FOR

Electronics engineers, hobbyists designing power supply circuits, and anyone interested in voltage regulation and conversion techniques.

dvn
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The voltage regulator have 3 legs, 2 for input and one for output to make a constant voltage.

I was wondering if this is possible?

2 x input of 12v and can the output be 24v or only under 12v?

thanks
 
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If you're talking about the 78xx series voltage regulators, then one of the legs is common. You need to reference the input and output voltages with respect to the common.

From what I've known, regulator outputs are always less than the inputs. If you're looking for a way to increase a voltage, then you may want to look into DC-DC converters.
 

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