12v 150w SMPS electronic transformer for halogen lamps. On the market are very similar to halogen driver circuit BJT types of transistors (mje13005) used cardiac triggered if the transformers used et34 220k potentiometer circuit can control the brightness of the halogen lamp.
Halogen Lamps 12V 150W Power Supply
For a long time I was going to put this inverter for powering 12V halogen lamps, and finally did it. This power supply has a fairly high efficiency, maybe even 95%, has a soft start and also protection against overload and short circuit, the output voltage can be adjusted in a large range.
These power supplies installed in the house I have 9 pieces au couple of other people also are several.
By setting the voltage of 11.5 V bulbs reach stability in excess of 5,000 hours, this also helps in soft start. The cost of construction of the inverter together with metal housing is higher than buying ready-to Allegro, but when it got under way this Feature passed me the desire to buy them, all too little, as in Chinese products until a wonder that they do not burn from the first inclusion.
Source: elektroda.pl/ Halogen Lamps switch mode power supply 12V 150W circuit schematic pcb files alternative-link-:
Password: 320volt.com
Published: 2010/02/07 Tags: power electronic projects, smps circuits, smps projects, smps schematic
Signal generator Circuit PIC16F88 JAL Code Example
In an experiment with some changes I use this circuit for the development of’m sending you. I could not work because it is not a final time.
To put it in principle, be controlled by Pic-5V to +5 V analog switch between the output stage is based on the principle of giving. The future with analogue switch (CD4051) 4 units of work for removing a circuit will do better.