Battery backup unit (BBU)

Products and reference designs

Battery backup unit (BBU)

Block diagram


Our integrated circuits and reference designs help you create high efficiency, high power density AC/DC and DC/DC battery backup units (BBUs) for various server power supply units (PSU), telecom PSU and industrial applications.

Design requirements

Modern BBUs often require:

  • Fast charging to backup mode transition.
  • High power density to pack more power in less space.
  • High efficiency to extend battery backup time.

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Block diagram

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Technical documentation

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Type Title Date
More literature Bi-directional DC/DC converter topology comparison and design (PPT) 30 Aug 2016
Technical article Fast and furious: designing longer-lasting 16S-17S Li-ion battery packs for e-moto PDF | HTML 23 Jun 2023
Technical article Digital power control advances GaN PFC design PDF | HTML 14 Aug 2023
Technical article For efficiencies’ sake – how to integrate bidirectional power flow (part 2) PDF | HTML 11 Aug 2023
Analog Design Journal Multimode control for a four‐switch buck‐boost converter 08 Jan 2019

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