This is a backplane PCB for Digitabulum containing the power-management block and associated support circuits.
Intended usage
This PCB, combined with a Compute board, and a Digitabulum-r2 board (plus sensors) forms a complete electronics package for a single motion-capture glove.
The power-management block of this backplane is broken out in the PowerPlant-Module.
The CPLD GPIO pin has been routed to the 2v5/3v3 selection signal.
Features
ESD protection diodes for ingress-resistant USB port.
Supports full software management of battery.
Supports reduced-voltage operation and full power down of the sensor package for maximum battery longevity.
This is a backplane PCB for Digitabulum containing the power-management block and associated support circuits.
Intended usage
This PCB, combined with a Compute board, and a Digitabulum-r2 board (plus sensors) forms a complete electronics package for a single motion-capture glove.
The power-management block of this backplane is broken out in the PowerPlant-Module.
The CPLD GPIO pin has been routed to the 2v5/3v3 selection signal.
Features
ESD protection diodes for ingress-resistant USB port.
Supports full software management of battery.
Supports reduced-voltage operation and full power down of the sensor package for maximum battery longevity.
Hey there! Before ordering, make sure you have all all the info you need to complete and use this design.
This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended.
OSH Park cannot place any guarantees about the functionality or correctness of the design.
Hey there! Before ordering, make sure you have all all the info you need to complete and use this design.
This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended.
OSH Park cannot place any guarantees about the functionality or correctness of the design.
This is a backplane PCB for Digitabulum. When combined with the PowerPlant, it has the same schematic as the r2-Backplane.
Intended usage
This board is intended as a testing harness for functional subunits designed for use with the Digitabulum sensor package. This would be the board you would want for prototyping new CPLD designs, power supplies, or compute modules.
If you do not want to do those things, but just want a working glove, you should use the r2-Backplane instead.
The CPLD GPIO pin has been routed to the 2v5/3v3 selection signal.
Features
ESD protection diodes for ingress-resistant USB port.
Supports full software management of battery.
Supports reduced-voltage operation and full power down of the sensor package for maximum battery longevity.
This is a backplane PCB for Digitabulum. When combined with the PowerPlant, it has the same schematic as the r2-Backplane.
Intended usage
This board is intended as a testing harness for functional subunits designed for use with the Digitabulum sensor package. This would be the board you would want for prototyping new CPLD designs, power supplies, or compute modules.
If you do not want to do those things, but just want a working glove, you should use the r2-Backplane instead.
The CPLD GPIO pin has been routed to the 2v5/3v3 selection signal.
Features
ESD protection diodes for ingress-resistant USB port.
Supports full software management of battery.
Supports reduced-voltage operation and full power down of the sensor package for maximum battery longevity.
Hey there! Before ordering, make sure you have all all the info you need to complete and use this design.
This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended.
OSH Park cannot place any guarantees about the functionality or correctness of the design.
This is the power-management block of Manuvr’s motion-capture glove. It has been broken out as a module for testing and re-use.
Intended usage
A software-mediated single-cell li-ion battery manager for cases needing bursts of a few watts and supporting long periods of quiescent standby.
Features
Fused battery
Charger and fuel gauge are both i2c
Secondary regulator has three voltages (0, 2.5, 3.3), and can be changed dynamically.
Integrated 4-bit level-shifter (i2c capable)
2.54 headers
Single-sided assembly for easy thermal-relief
Primary components
Feature
Manufacturer
Part
Battery charger
TI
BQ24155
Fuel gauge
Linear
LTC2942-1
Regulator
SEMTECH
SC283
Level-shifter
TI
LSF0204
Constraints
Battery must be li-ion chemistry.
Primary regulator is always on and fixed at a 3.3v output.
No single regulator may provide more than 1.8A, and the module’s maximum output wattage is 4.2 watts. See below.
Charge and discharge rate on the battery must not exceed 1A, or the internal sense resistor in the fuel gauge will burn out. There is a resetable fuse to prevent damage, but this forms the limit on the module’s practical output rating. However, the charger IC can handle up to a 20v input, and could conceivably draw more than the module’s maximum output from the input source as it charges and powers the load. Fuse accordingly. :-)
This is the power-management block of Manuvr’s motion-capture glove. It has been broken out as a module for testing and re-use.
Intended usage
A software-mediated single-cell li-ion battery manager for cases needing bursts of a few watts and supporting long periods of quiescent standby.
Features
Fused battery
Charger and fuel gauge are both i2c
Secondary regulator has three voltages (0, 2.5, 3.3), and can be changed dynamically.
Integrated 4-bit level-shifter (i2c capable)
2.54 headers
Single-sided assembly for easy thermal-relief
Primary components
Feature
Manufacturer
Part
Battery charger
TI
BQ24155
Fuel gauge
Linear
LTC2942-1
Regulator
SEMTECH
SC283
Level-shifter
TI
LSF0204
Constraints
Battery must be li-ion chemistry.
Primary regulator is always on and fixed at a 3.3v output.
No single regulator may provide more than 1.8A, and the module’s maximum output wattage is 4.2 watts. See below.
Charge and discharge rate on the battery must not exceed 1A, or the internal sense resistor in the fuel gauge will burn out. There is a resetable fuse to prevent damage, but this forms the limit on the module’s practical output rating. However, the charger IC can handle up to a 20v input, and could conceivably draw more than the module’s maximum output from the input source as it charges and powers the load. Fuse accordingly. :-)
Hey there! Before ordering, make sure you have all all the info you need to complete and use this design.
This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended.
OSH Park cannot place any guarantees about the functionality or correctness of the design.
Hey there! Before ordering, make sure you have all all the info you need to complete and use this design.
This usually means a component list, and sometimes additional information such as assembly notes, source code, or usage guides.
Since this is a project designed by a community member, it may contain design errors that prevent it from working as intended.
OSH Park cannot place any guarantees about the functionality or correctness of the design.