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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