Circuit Corner
Welcome to Circuit Corner. I periodically update this section of my webpage with interesting circuits I invent.
Issue 11
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- CNC Warning Sign - A warning sign graphic to hang on your CNC machine.
Issue 10
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- Practical Current Sense Transformers - Making current sense transformers work with a pulse train.
- Simple Boost/Flyback Converter - A quick and easy way to step up a voltage, with voltage and current regulation.
Issue 9
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- Current Sense Transformer Design - Make your own current sense transformer for any application.
Issue 8
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- Simple PWM Timer - Generate a continuously variable duty cycle pulse train with only 8 transistors.
- Microcontroller Soft Power - Let your battery-powered device turn itself off with ease.
Issue 7
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- 3-State Logic Probe - Test for high, low, and open circuit.
- Ultra Low Voltage Continuity Checker - Trace out broken PC board traces with your own precision instrument.
Issue 6
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- Bicolor LED Driver - Get all three colors from a two-pin bicolor LED.
- Microprocessor Reset Circuit - A microprocessor supervisor with a touch of old-school charm.
Issue 5
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- Making Meter Faces - A program to quickly create precision meter faces on any platform.
- Making Dial Scales - Notes on using the same program to draw scales for dials and knobs.
Issue 4
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- Defensive Engineering - A perspective on engineering for reliability.
- Improved Current Limiter - A simpler, more reliable replacement for the one in Issue 1.
- LED Current Controller - Maintain constant LED brightness over a wide supply range.
- Solid-State Circuit Breaker - Protect your circuits from a wide range of electrical faults.
Issue 3
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- Cheap Voltage Regulator - 3.3V on a budget.
- Simple Logic Probe - 2 transistor logic probe.
Issue 2
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- H-Bridge - Good for motor control.
- Quadrature Clock Generator
- Standard Circuit
- Stepper Motor Sequence Generator
Issue 1
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- Sweep Generator - Convert a pulse train to a sawtooth wave.
- Current Limiter - Improve your fail-soft performance with current limiting.
