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Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I'm staring at the datasheet for the LM237 and I can't figure out how it works since it makes a positive voltage negative, but there is no switching going on.
it doesn't change anything, it just provides a 1.25V reference between the adjust pin (the most positive) and the output pin. The input is a negative voltage.
Yeah, I thought it was a non-switching circuit that somehow inverted the voltage and I couldn't figure out how. Then I realized it made a negative output from a negative input.
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