PV & ESS Applications
VOOHU does not build complete systems; it supplies the positions inside them that decide whether EMC passes, links stay stable and isolation holds. In a battery energy storage system that means battery management system (BMS) isolation transformers for cell sensing and the isoSPI daisy chain between battery monitoring units, power magnetics for the PCS (the energy storage inverter) and charging modules, and Ethernet-port and bus protection for EMS controllers and data loggers. The architecture below runs from photovoltaic (PV) generation through storage and bidirectional conversion to EV charging, energy management and grid dispatch; devices marked with a reference board open a component-level reference design.
Five-layer PV and energy storage system architecture
Generation (PV)
ESS (Battery + PCS)
Load / Charging
Mgmt & Comms
Grid / Cloud
Component-level reference designs
Component-level illustrative reference designs compiled by VOOHU FAEs for typical devices. Each illustrative board marks every component position, its function and the VOOHU part numbers available, so you can review selection notes and packages position by position.
What we provide along this chain
BMS Isolation Magnetics
BMS isolation transformers (single / dual port), push-pull transformers and planar transformers for isoSPI daisy-chain isolation and isolated power on the BMU side.
BMS Isolation TransformersFiltering & EMC Magnetics
Signal line / power line common mode chokes, molded inductors and combined inductors for noise immunity on sensing lines, common-mode suppression and power-input EMI.
Signal Line CMCEMS Network Interfaces
RJ45 connectors, LAN transformers, Ethernet PHYs and switch ICs for EMS controllers, data loggers and on-site ring networks.
RJ45 ConnectorsCurrent Sensing & Protection
Current transformers and TVS / ESD protection devices for grid-tie CTs, current sensing and surge protection on all kinds of ports.
Current TransformersCan’t find the right part or design?
Tell us about your device and requirements. A VOOHU FAE will help with part selection and come back with recommended part numbers and a quote.
