BL0942 Energy Metering Chip – Current, Voltage & Power Measurement for Crypto Miner

BL0942 Energy Metering Chip | Current, Voltage & Power Measurement for Crypto Mining Rigs

Upgrade your crypto mining setup with the BL0942 energy metering IC — a high-precision, calibration-free solution designed for real-time power monitoring in ASIC miners, GPU rigs, and industrial mining farms. This advanced metering chip delivers accurate power-consumption tracking that helps miners reduce electricity costs, prevent hardware damage from over-current events, and maximise profitability through better visibility into rig-level efficiency.

Built around a precision shunt-current measurement front-end and a digital DSP back-end, the BL0942 outputs raw current, voltage, and active-power readings via a standard UART or SPI interface at less than 1% measurement error across the full operating range. The compact SSOP10L package drops cleanly into custom monitoring boards, and the 10mW typical power consumption means the chip itself adds negligible load to the rail it monitors.

Real-Time Voltage, Current & Energy Tracking — UART/SPI Output for Mining Rig Optimisation

• Ultra-accurate measurements — tracks current (10mA-30A), voltage RMS, and active power (1W-6600W) with less than 1% error.
• Overload protection — fast RMS current output detects surges before they fry mining hardware.
• Seamless integration — UART/SPI interface works with miner control boards, smart PSUs, and custom monitoring systems.
• Load diagnostics — waveform analysis and zero-crossing detection help troubleshoot unstable power conditions.
• Low power draw (10mW) — minimal impact on mining-rig efficiency.

Where the BL0942 Fits

This is the right metering IC when a design needs precise, calibration-free AC-side power measurement integrated directly into the mining rig: smart PDU modules that report per-rig consumption to a central farm controller, retrofit monitoring boards that wrap a current shunt around the PSU input, and custom measurement equipment built for mining-farm energy audits. Pair with a 1mΩ shunt resistor on the AC input and a 3.3V MCU host to capture per-second power data.

BL0942 Specifications

Related products

• ADS122U04IPWR 24-Bit ADC for Sensors
• PE-51686NL Current Transformer (20A 50:1)
• STM32F103RBT6 32-bit Cortex-M3 MCU
• SN65HVD232DR CAN Transceiver (3.3V 1Mbps)

Need BL0942 in tray quantities for smart-PDU or energy-monitoring production? Email contact@lys-sz.com for bulk pricing. Worldwide shipping from our Shenzhen warehouse.