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Toy SMPS or an Overkill White LED Driver

Jonathan Westhues site of Intriguing Projects include A Test Instrument for HF/LF RFID and a compiler that starts with a ladder diagram and generates native PIC16 or AVR code.

Toy SMPS or an Overkill White LED Driver

Toy SMPS or an Overkill White LED Driver

I sense the load current and control the duty cycle. The PWM pin on the AVR drives the gate of the FET through a couple of BJTs. Note the absence of any input capacitance; Vin looks terrible but it works. The micro power supply section is isolated with an RC.

delabs Notes

This is a nice way to start, learn uC and Power electronics in one go. It does not matter if it an expensive solution for LED Lighting. It certainly is an excellent Educational Project.

It may also be useful to use Intelligent Systems (uC and Firmware) to monitor and manage LED Arrays and control their brightness and color. Large Arrays can be Interfaced to PC by XBee for Home/Office or Factory Lighting Automation and Energy Consumption Optimization.

uC Real World Interface

uC I/O is Keyboard and LCD when you Build a calculator or a Text/Morse Communicator. When you control a motor it is Drive/Speed and Direction for Motor and Tacho or Opto Counters for Feedback. In both cases you have Input and Output which is Logic or Analog which has to reach the CPU.

Microcontroller Interfacing

Pinguino – Arduino-compatible for PIC

Pinguino is an Arduino-compatible open source hardware electronics prototyping platform. It supports different 8- and 32-bit microcontrollers, all with built-in USB module

New library : I2C 16-bit I/O expander #Pinguino can now drive Microchip MCP23O17 / MCP23S17 16-bit input/output port expanders with i2c interface, interrupt output and cascadable for up to 8 devices on one bus.

Pinguino – Arduino-compatible for PIC

Pinguino - Arduino-compatible for PIC

Pinguino Software is an Integrated Development Environement (IDE) which gives everyone the ability to write, compile and upload programs on a Pinguino board.

Pinguino comes with a USB Bootloader. This small program running inside the microcontroller is responsible for transferring your application from your PC to the microcontroller memory and handing over the control to this program afterwards.

Toy steam engines museum – Chesterfield

Before Hams invented DIY Electronics and even before Electric Current gained any respectable position in the Manufacturing Community. The thing that was making many heads nod in unison, was Steam Engines.

Coal, Steel and then Steam Engines made the word Industrial Manufacturing very Meaningful.

Toy steam engines museum – Chesterfield

See some inspiring videos of The Steam Engines at Michael Stacey of Chesterfield. Here you will find models from Mamod, Hobbies, Meccano, Bowman, Wilesco, Maxwell Hemmens, Stuart, etc.

Wilesco Dampftraktor D405.

Wilesco Dampftraktor D405.

Miss England – Twin jet propelled speed boat, Made by Victory Industries Ltd Circa 1948.

Miss England - Twin jet propelled speed boat

Electronics Australia – EAT

Electronics Australia – EAT – Files

“Here you will find a wealth of electronics-related software, covering everything from PCB layout through to loudspeaker design suites.

Electronics Australia - EAT

Electronics Australia and EA Today are no longer being published. SILICON CHIP is now the only electronics magazine published in Australia. It is available each month from your newsagent or directly mailed from the publisher by subscription.”

  • Technical Software – electronics-related files.
  • EA Project Software – software for one EA projects

Electronics Australia and EA Today

Electronics Australia was one of the longest running and most respected electronics publications in the world.

Electronics Australia & Silicon Chip Magazines

Dave now supports the only remaining Australian electronics magazine – Silicon Chip.