![]() ![]() As for the mag, you have three options now:ġ. The processor and LED display draw only 5-12 mA so a simple linear voltage regulator can supply them with all they need. This would mean less efficient and more bulky DC-DC converter. Now, achieving higher ROFs requires further voltage increase, plus higher voltage applied to the mag means the converter has to supply more current. ![]() But then I had to increase its output voltage from 9 to 14 volts (so in-out difference was reduced). DC-DC converters are efficient when there is significant difference between input and output voltages. Originally, it was implemented because we needed to lower mag voltage from 24 to 9 volts with minimum losses. Here's the ideology behind the design changes: let's say good bye to DC-DC converter, we don't need it any more. It's $10 cheaper (no need for DC-DC converter). Better transistor in mag control circuit.ĥ. ![]() Mag voltage is controlled with a jumper (see below).ģ. What it inherits from the previous design:Ģ. Please welcome the board ver.3 (Sergey's board - 2). ![]()
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