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Powerharvester Selection Guide

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Selection Guide for choosing the best Powerharvester Receiver. The chipset reference design is available for license and supports RF power harvesting of frequencies from 1MHz to 6GHz. Received power is in the range of microwatts (uW) to low milliwatts (mW) depending on the RF input power.

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Powerharvester Selection Guide

  1. 1. Component Selection Guide
  2. 2. Powerharvester® Receivers Low Volume Applications and Prototyping Convert RF input to DC current Power/charge management Power RF P1110 I/O Frequency range: 850-950MHz RSSI and Data output RF P2110 Power I/O Designed for 50Ω antennas P1110 P2110 Continuous Power Output Pulsed Power Output• RF range: -5.0dBm to 20dBm • RF range: -11.5dBm to 15dBm• Output voltage: 1.8V to 4.2V • Output voltage: 1.8V to 5.25V (configurable over-voltage) (configurable and regulated)• Range of at least 3 meters • Range of at least 10 meters
  3. 3. Powerharvester® Chipset / Reference Design High Volume Applications Flexible implementation Output from 2 to 5V (higher with custom design) Wide tunable range: 1MHz to 6GHz RF harvesting down to around -12dBm input Same performance as P1110 / P2110 Estimated BOM: $5-6 @ 3K, $3-5 @100K, <$2 @1M+ Reference designs available for license RF Harvesting Circuit • Powercast chipset (3 custom ICs) • 20-25 other discrete components • Small footprint: 0.2 in2 / 1.3 cm2
  4. 4. High-Efficiency, Wide Operating Range 80RF-to-DC Conversion Efficiency (%) P1110 - 915MHz, 3V 70 P2110 - 915MHz, 1.05V Power 60 50 40 30 20 10 Distance 0 -12 -10 -8 -6 -4 -2 0 2 4 6 8 10 12 14 16 18 20 Input Power (dBm)
  5. 5. Component Selection Battery Regulated Output Max RF Input Charging Output Voltage Operating Power Range Distance3 (dBm)P1110 Yes No2 0 - 4.2V 10 feet -5 to 20 ContinuousP2110 Yes1 Yes 2 - 5V 40 feet -11 to 10(Standard) Intermittent6P2110 Yes1 Yes 2 - 5V 10 feet -5 to 20(High power)4 Continuous5 Notes: 1. Additional circuitry required (see BAT-EVAL-01 schematic) 2. Supports configurable over-voltage protection up to 4.2V 3. Based on a 3W source and 6dBi receiving antenna 4. High power version currently only available as a licensed reference design 5. May become intermittent for high load currents or longer ranges 6. May become continuous in close proximity for low load currents