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LPA 50/100W Linear Power Amplifier (REPLACED BY LPA-2)
Brand: PulsarThe LPA is our first-generation high-power amplifier for power line carrier communications and was obsoleted in 2018 by the LPA-2.
The LPA has a lot of built-in redundancy as the 50W base unit (3RU) is composed of four 12.5W power amplifier boards whose outputs are combined in a combiner board to provide 50W output.
Each set of two 12.5W power amplifier boards has its own power supply. Two 50W chassis (6RU) can be combined for a 100W output and to provide extra redundancy.
It amplifies signals equally over the whole frequency range of 30 – 500 kHz.
Although primarily used in applications where the attenuation from end-to-end is higher than the normal 10W amplifier can handle, the LPA can be used in normal applications to boost system dependability by significantly improving the possibility of the PLC signal not being lost during a high noise event.
Features- Built-in redundancy
- No filters or changes required to cover 30 - 500 kHz frequency range
- Can output full rated power continuously with no derating
- Composed mostly of common boards used in TC/TCF-10B product line
Specifications
Brand
Frequency Bandwidth
- 30 kHz-535 kHz
Input Impedance
- LPA50: 50 Ω with all Four 12.5 W Power Amplifiers Plugged In
- LPA100: 25 Ω with all Four 12.5 W Power Amplifiers Plugged In
Output Impedance
- 50 Ω with all Four 12.5 W Power Amplifiers Plugged In-or- 75 Ω (per Catalog Number)
Maximum Power Input
- 10 W (+40 dBm, 50 Ω Reference)
Minimum Power Input (To Get 50 W / 100 W Output)
- 10 mW (+10 dBm, 50 Ω Reference)
Maximum Power Output
- LPA50: 50 W Continuous Single Frequency into 50 Ω or 75 Ω Load (+50 dBm, 50 Ω or 75 Ω Reference)
- LPA100: 100 W Continuous Single Frequency into 50 Ω or 75 Ω Load (+50 dBm, 50 Ω or 75 Ω Reference)
Harmonic & Spurious Noise Output
- LPA100: 55 dB below 100 W
- LPA50: 55 dB below 50 W
Overall Power Loss for Failure of the 12.5 W Power Amplifier(s) for LPA100
- One 12.5 W Power Amplifier Failure: -1.1 dB
- Two 12.5 W Power Amplifier Failures: -2.5 dB
- Three 12.5 W Power Amplifier Failures: -4.1 dB
- Four 12.5 W Power Amplifier Failures: -6.0 dB
- Five 12.5 W Power Amplifier Failures: -8.5 dB
- Six 12.5 W Power Amplifier Failures: -12.0 dB
- Seven 12.5 W Power Amplifier Failures: -18.0 dB
Overall Power Loss for Failure of the 12.5 W Power Amplifier(s) for LPA50
- One 12.5 W Power Amplifier Failure: -2.9 dB
- Two 12.5 W Power Amplifier Failures: -6.4 dB
- Three 12.5 W Power Amplifier Failures: -12.8 dB
Ambient Temperature Range
- -20° C to +60° C (Derated) of Air-Contacting Equipment
Relative Humidity
- Up to 95 % (Non-Condensing) at 40° C (for 96 hours Cumulative)
Altitude
- Up to 1,500 m (Without Derating)
- Up to 6,000 m
Transient Withstand Capability
- All External User interfaces meet SWC specifications ofANS C37.90.1 (1989)
1-minute Withstand
- Only Isolated Inputs and Outputs, and all Alarms: 2,500 Vdc from each Terminal to Ground, Derated per Table 1-4.
Center Conductor of Coaxial
- 3,000 Vdc Impulse Level, Cable to Ground using 1.2 x 50 Cable to Ground msec Impulse
Electro-Magnetic Interface Capability
- IEEE Standard ANS C37.90.2