µ[micro]electronics info

A weblog focused on interesting circuits, ideas, schematics and other information about microelectronics and microcontrollers.




Because I have not tested all electronic circuits mentioned on this pages, I cannot attest to their accuracy; therefore, I do not provide a warranty of any kind and cannot be held responsible in any manner.

My e-mail

My website

Simple negative power supply

This stuff is really small, use some common parts and can be reuse across different needs.

Sometimes you need a simple negative power supply. The best example is the contrast PSU for common small LCD device. Building -5V from a battery or a wallmart supply isn’t really easy. Here is a simple design small device that is able to provide -5V, -12V, -15V using the MAX 764/765/766 series.


Powered by Drupal - Design by Artinet