POWER SUPPLIES & COMMON BUS SOLUTIONS Bonitron > Products > Common Bus

Bonitron Common Bus Solutions are ideal components for developing an efficient common DC bus drive system.
Select a Common Bus Solution below to learn more.

Drive systems are more commonly being configured with a common DC bus - for good reason. Common DC bus configurations create advantages including cost savings, greater efficiency, and a more versatile system design. There are multiple methods of creating common bus systems. One method is the use of a Power Supply (rectifier) that supplies DC power to all of the drives instead of individual rectifiers for each drive. Another alternative is the use of sharing or isolation diodes.

In most common DC bus applications, costs are lowered due to sharing of power among the drives.Not all drives may be motoring at the same time, which will reduce the need for excess braking, power supply, or other such components.
Why Common DC Bus?
Why Common DC Bus?

Single Phase
Power Supplies
Power Supplies
Sharing &
Isolation Diodes
Single Phase Power Supplies

Single Phase Power Supplies allow users to power 3-Phase drives from a single phase AC source without derating the drive.

  • Ideal for remote areas where 3-phase power is not availabler
  • Single phase AC input.
    DC output to drive DC +/- connection
  • No need to derate drive for single phase operation
  • 208 - 480VAC


Three Phase Power Supplies

3-Phase Power Supplies can be used as the main power supply for common DC bus drive systems and are available with or without precharge.

  • 3-Phase AC input
    DC output to drive DC +/- connection
  • Available precharge
  • 12 or 18 pulse building blocks
  • 208 - 600VAC
Sharing and Isolation Diodes

Sharing and Isolation diodes allow multiple drives to utilize one Braking Transistor, Line Regen, or UPD in order to reduce component count and system cost.

  • Tie multiple drives to a common DC bus
  • Each drive powered via AC
  • Sharing or isolation diodes available
  • 208 - 480VAC
DC Bus Capacitors
& Filters
24VDC Power Supply Regenerative
DC Bus Power Supply
DC Bus Capacitors

DC Bus Capacitors are simple add-ons that provide bulk capacitance on your drive system's DC bus to reduce bus ripple and improve immunity to voltage sags. Filters limit spikes and rininging in the DC bus.

  • Simple add-on to drive DC +/-
  • Reduce bus ripple
  • Improve voltage sag immunity
  • Limit DCspikes and ringing
24VDC Power Supplies
The M7001 is a 24V power supply with a wide input range. For backup systems using capacitors and batteries the M7001 provides RideThru capability to the 24V PLCs, sensors, or networks. The M7001 also works with systems that could see sustained voltage surges.
  • Input Voltage: 190 - 1000VDC
  • Output Voltage: 24VDC
Regenerative Power Supply
The M3645P Regnerative DC Bus Power Supply synchronizes to the
frequency of the incoming power line, allowing it to automatically adapt to
50Hz or 60Hz input. Under normal conditions, the M3645P rectifies the AC
line and supplies power to the load.
  • Acts as rectifier
  • Small footprint
  • Integrated filtering and surge suppression
  • 208 - 480VAC support with 50/60Hz auto select
  Made in the United States of America

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