Appendix A: Technical Specifications - Hinge Health Enso User Manual

Appendix A: Technical Specifications

Power
›
Power Source: Internally powered by fixed, rechargeable
battery
›
Battery Type: Lithium-polymer battery, 3.7V nominal
›
Battery Life: >80% of initial capacity after 500 cycles
(estimated two to three years of typical use)
›
Input Voltage: 5V DC
›
Input Current: 100mA (maximum)
›
Charging Source: AC adapter
›
AC Voltage: 100–240V AC
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AC Frequency: 50–60Hz
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Battery Compliance: IEC 62133-2:2017
Line Current Isolation: Treatment is not possible during
charging because the Enso device must be disconnected
from the gel pad while it is charging.
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Output characteristics
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Waveform: Biphasic, asymmetrical
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Regulation: Current regulated
›
Current: 0–80mA (±10%, into 500Ω load)
›
Voltage: 90V (±10%, maximum, into open circuit)
›
Pulse Duration: 90us +/- 4%
›
Pulse Frequency: 2–160Hz (±4%, modulated according to
lookup table)
›
Operating Mode: Continuous
›
Phase Charge: 16.2µC (maximum)
›
Maximum Current Density: 0.51mA/cm2 into
500Ω load
›
Maximum Average Current: 2.33mA into 500Ω load
›
Maximum Average Power Density: 3.6mW/cm2 into 500Ω
load