Battery knowledge · Data, communication and electronics
Buck and boost converters
Switch-mode circuits that step a DC voltage down (buck) or up (boost) using a fast switch, an inductor and a capacitor, often above 95% efficient. With transistors in place of diodes the same circuit runs both ways, charging a battery from a bus or discharging into it, as in stationary storage and on-board boosters that let 800 V cars use 400 V chargers.
- Also called
- buck converter, boost converter, step-down converter, step-up converter, bidirectional DC/DC converter
Example
Duty cycle controls average voltage
50% of 12 V gives a 6 V time average.
Unfiltered ideal waveform; actual output depends on the converter circuit and control.
Explore the graph
An ideal pulse train alternates between zero and the supply voltage.
50% of 12 V gives a 6 V time average.
V_average = D V_supply
Illustrative model. Unfiltered ideal waveform; actual output depends on the converter circuit and control.
Use in Lemonergy
Separate quantities from encoding and transport.
This is a reference concept. No executable Lemonergy block has been verified for this term.
References & further reading
Further reading on this topic
These sources provide broader context; they are not presented as citations for every statement in this entry.
- 3rd generation of the CAN data link layer
CAN in Automation, CAN Newsletter · 2020
Topic background · Classical CAN, CAN FD and CAN XL data-link concepts; publication describes the 2020 state.
- Getting Started with the BQ76925
Texas Instruments · 2019
Topic background · A concrete BMS analog front-end example: cell voltage, current, temperature measurement and MCU integration.