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link to Friburg This Booster is described by Rutger Friberg in his bonus project No.1 related to book No. 4, plus it has
a feedback module. It uses a common stepper motor driver, the L 298 H-bridge. This has 2 parallel H-bridges and the NMRAF 7 circuit gives the option of using them for track drive or connecting one for use as a programming track. If you however run both H-bridges in parallel it will give you a booster with 6 A output capacity, with the right power transformer. Added to the circuit is a simple feedback from the booster to indicate overload or a "job complete" signal from the programming logic of the decoder.
link to Friburg This Booster is described by Rutger Friberg in his bonus project No.1 related to book No. 4, plus it has
a feedback module. It uses a common stepper motor driver, the L 298 H-bridge. This has 2 parallel H-bridges and the NMRAF 7 circuit gives the option of using them for track drive or connecting one for use as a programming track. If you however run both H-bridges in parallel it will give you a booster with 6 A output capacity, with the right power transformer. Added to the circuit is a simple feedback from the booster to indicate overload or a "job complete" signal from the programming logic of the decoder.
LINK TO IMAGE - to bstr-2.gif
Circuit Schematic
