In-Base Power Subsystems

Most mobile workstations offer 120 or 240 VAC power to the user devices installed on workstations. An in-base power architecture typically consists of two major subsystems – a 12 Volt, 40 (+/- 10) Ahr, 480 Whr, U1 format Li-ion battery and a medical grade 100 – 150 Watt inverter/charger. The inverter/charger performs several functions, including AC/DC power conversion, battery charging, DC/AC power inversion, an Internet of Things (IOT) processor, a communications (SMBus, CANBus) transceiver and electronics to drive a Remote User Interface (RUI) or Fuel Gauge to inform the user about system performance. The inverter/controller typically provides power output in the range of 100 to 150 Watts.

Green Cubes can provide elements of an in-base power architecture (i.e. battery) integrated into the workstation base, as opposed to a distributed swappable battery solution which has 3-5 components – battery, docking station for the workstation, DC/AC inverter on the workstation, charging station and possibly an AC/DC power supply to power the charging functions in the docking station.  An in-base power architecture provides the following benefits:

  • Reliability – An in-base power architecture has a permanent hard-wired cabling system. 
  • Larger capacity – Green Cubes has developed the largest batteries on the market (over 1000 WHr) which results in the longest possible run-time. These batteries can support multiple shifts and can easily be plugged into AC outlet during breaks or at end of shift. 
  • Nonintrusive Operation – An in-base power architecture is nonintrusive and all the equipment is hidden in the workstation base. 
  • User Notification – The fuel gauge function can be integrated into the user Interface on the touchscreen display within the work surface. 
  • User Training and Charging Behavior Issues – No battery system is foolproof. However, an in-base power architecture is very easy to train and understand.  Simply plug the workstations in when not in use.
  • Lower Total Cost of Ownership – The in-base power architecture (battery and inverter) has a lower initial capital cost than a distributed swappable solution (batteries, docking station, inverter, charging stations, AC/DC power supply). Additionally, when comparing the cost-per-WHr of both solutions, the cost-per-WHr of the in-base power architecture is substantially less than a distributed swappable battery solution.