Brake modules are electronic circuits that let locos with digital decoder brake smoothly on a section of track. The brake module generates a brake voltage to be fed to the track that is interpreted by suitable loco decoders, which then smoothly brake the loco. The brake voltage is basically just negative dc, but on the bogobit brake modules (except for the standard brake module) combined with a tailored current limit protection to avoid critical short circuits.
This working principle is known to märklin users as the "märklin brake module" and to DCC users as "brake on dc". It works with most of the original märklin decoders, and most compatible decoders. It also works with many DCC decoders, some of which need special configuration to support it. In some DCC decoders the voltage polarity is evaluated to achieve direction dependent braking.
Also märklin users need not live without direction dependent braking. The Bremsmodul Oneway is designed to do this.
The bogobit Bremsmodul Classic is characterised by its very easy track work, because it only needs one insulated track section. It does not need a transition or stop track as usual with many other brake modules. This simplifies track construction work and allows an easy upgrade from an already built, conventionally controlled layout to a digitally controlled layout. The length of the insulated section must be as long as the locos' longest braking distance.
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bogobit Bremsmodul Classic
With the prototype, a signal applies only in one direction. Locos in opposite direction just keep on driving. For your model railway this can be done with the bogobit Bremsmodul Oneway. To detect the driving direction, the track must be insulated into two sections. Current sensors in each section detect the loco and the brake module can take appropriate action.
Operational mode 1 e. g. on free track: The brake module is used at one signal with braking in one direction.
Operational mode 2 track in a station: The brake module is used at two signals with braking in either direction.
Station tracks (also in hidden yards) shall often be used by trains in both directions. To achieve a prototypical stop at the track's end in any direction, you do not need two brake modules (one for each end), but one Bremsmodul Oneway does it all for you. To detect the driving direction, the track must be insulated into two or three sections. Current sensors in each section detect the loco, and the brake module switches all sections over to brake voltage in the appropriate moment. With two control inputs the brake module detects the aspects shown by two signals and decides appropriately when to switch over to brake. In operational mode 1 only one signal is connected.
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bogobit Bremsmodul Oneway
The Standard-Bremsmodul is a common circuit that can be found on various websites. It is the very simple way to build a brake module.
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Standard-Bremsmodul
bogobit · 2022-09-07