Years ago, I designed a PWM motor controller that I used in a dual, four quadrant, wheel chair control.I called it the People Mover.It was built primarily as a technology demonstrator for prospective engineering clients.When my…
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A few years ago, a client was making a device that ran on a Lithium ion, Li-Ion poly, Li-Po, battery that was nominally 12V.Li-Po batteries can be damaged if they are discharged below a critical level.In this case…
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Synthesizer circuits are the ones which is capable of producing audio signals using electronics.Modern synthesizers are quite popular now a days as it provides a ease of producing quality music.You might have seen some similar synthesizer circuits like…
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In times like these it's important to take measures to sterilize or disinfect surfaces or things we interact with daily.Applying sanitizer or lotions may not be a viable solution in many circumstances.Did you know Ultraviolet lights of certain…
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Over the years I have designed and built many different types of Intercoms.I have a patent on a unit that uses piezoelectric discs as speakers for a door mountable intercom.The intercoms always required the user to operate a…
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Whether you are just practicing at home, recording songs for friends, or playing at an open mic night, this equalizer-mixer is a great addition to your sound gear.It has many great features you won't find on low-cost mixers.The…
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Function generators are quite expensive and due to that many engineers limit themselves by not getting one for their workbench.This hinders many testing and prototyping opportunities.Gladly there is a work around for this, a DIY Function generator that…
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