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Resonant Power Technology is an
industry leader in the design and manufacture of high technology
medical grade switching power supplies. In 1985, the founders of
RPT began their work towards developing the first commercially available,
off-line, series resonant switching power supply. Series resonance
provided the highly reliable product essential
for the low leakage current and CISPR 11 Class B EMI performance
requirements of patient contact medical applications.
In addition, this unique topology can safely generate significant
surge currents on the order of twice their nominally rated
output.
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Resonant Circuit Sinusoidal
Current Waveform |
Typical Unit Performance
Against VDE Class B Limits |
12 Volt output Noise Waveform |
| Performance Characteristics |
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Medical Electronics equipment demands reliable,
compliant, well made, cost effective and innovative
power sources.
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Resonant Power Technology's series resonant
topology offers a number of performance advantages. Switching
sinusoidal currents at the zero cross-over point eliminates
the peak switching stress, typically in the multiple kilowatt
region, experienced by pulse width modulated products. Very
low switching stress combined with inherent peak current limiting
and thermal limiting circuitry results in a power converter
whose durability exceeds that indicated by calculated MTBFs
in excess of 150,000 hours as demonstrated by its 0.3% field
return rate. RPT's products have been specifically designed
for the medical electronics industry using premium quality components,
derated conservatively, thereby enhancing the reliability of
its power supplies.
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As in our standard RPM series, each of Resonant
Power Technology's medical grade products is certified to the
most stringent international safety and emission standards,
i.e. UL 2601/60950, CSA 601.1/950, EN 60601.1/60950, CISPR 11
Class B and is eligible to bear the European
mark. Our RPF and RTM series are compliant with the 2001 European
Medical Directive for line harmonics, EN61000-3-2. In addition,
our RPF, RTM, and RBF series of products offers EN60601.1 Type
BF and CF floating applied part isolation.
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Resonant Power Technology manufactures all
of its products in ISO 9001 certified, FDA approved facilities
to the more rigorous IPC610 Class III workmanship standard.
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Our RSM series offers our customers cost effective
40 to 65 Watt ac/dc converters conservatively designed but targeted
at applications where cost is a major consideration.
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When size and weight are serious design parameters,
RPT's RHD series offers 4 Watt/cubic inch power density for
medical grade, patient contact applications.
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When it comes to medical grade power conversion,
from 40W to 600W, Resonant Power Technology is the place to
satisfy your requirement.
| Input Voltage Range |
90-264 Vac |
| Input Frequency |
47-63 Hz |
| Input Protection |
internal fuse |
Inrush Current Limit:
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40-600 Watts (117Vac/230Vac)...20A max/40A
max |
| Input EMI Filter |
CISPR 11 Class B |
| Environmental
Specifications |
| Operational Temperature |
0 to 70 C |
| Storage Temperature |
-25 to 75 C |
| Humidity |
5-95%, non-condensing |
| Altitude |
10,000 feet with appropriate
cooling |
| Vibration |
MIL-STD-810C, Method
514.2, Category f, Procedure VIII, 2.0G maximum at 5-200
Hz. |
| Shock |
MIL-STD-810C, Method
516.2, Category f, Procedure I, 3 shocks per axis/ each
direction, 11 mSec half sine at 15 Gs peak |
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| Line/Load Regulation |
(outputs 1 & 2) 1% nominal
(outputs 3,4, 5 & 6) 3% nominal |
| Ripple all outputs |
20 mV peak-to-peak |
| Hold-Up Time |
30 mSec |
| Temperature Coefficient |
0.05%/degree C |
| Overload Protection |
Fold back with automatic recovery |
| Thermal Protection |
Fold back with automatic recovery |
| OverVoltage Protection |
on all outputs |
| Power Good Signal |
available on specific units |
| AC Power Fail Detect |
available on specific units |
| Remote Sense |
available on specific units |
| Transient Response |
500 uSec to settle to within 1%
of the final value
after a 25% load step.
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| Frequency |
250 kHz Resonant Frequency |
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| Safety Agency
Certifications |
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2601/60950 |
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601.1/950 |
| EN 60601.1/60950/61000-3-2/3 |
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