Amplifier control board, SSPA LDMOS MOSFET controller, single band

Description

DESCRIPTION
***
If you need KIT (Controller and 2 boards for DC control) please look here https://www.ebay.com/itm/332737685458 ***
This board is intended to control any kind of solid state amplifier. The board based on modern STM8S CPU and 16x2 LCD. All PA parameters will be under strict and constant control of this board.
Board can control and display:
- Temperature, up to 4  DS18B20 MAXIM digital thermometers,  1 mechanical sensor as final level of protection
- Power supply voltage, 70v max
-
Power supply c
urrent, ACS756 IC as current sensor, 50A max
- SWR and Output RF power from external sensor, 2000W max.
- Input RF power from external sensor, 99w max.
- PTT in, GND active
The board has 8  digital
output lines
("open drain", 50v/250ma max)  to control:
- Amplifier bypass relay
- Amplifier power on/off
- External Low Noise Amplifier bypass relay (for VHF/UHF/SHF amplifiers)
-
External Low Noise Amplifier power
(for VHF/UHF/SHF amplifiers)
- PWM output for FAN control, 500 Hz, width depends on temperature from DS18B20 sensors
- PTT output, delayed
- Error LED
Board has many
levels  of
protection in multiple area  of PA
- Temperature protection, 2 levels, soft level can be set via software settings menu
- Overvoltage
protection,
value can be set via software settings menu
- Overcurrent protection
,
value can be set via software settings menu
- Excess of output RF power
protection
,
value can be set via software settings menu
- Excess of input RF power
protection
,
value can be set via software settings menu
- SWR
protection,
value can be set via software settings menu
All
settings are
stored in EEPROM, and once set - they will always work.
PA bypass relay, external LNA and
PTT
output switching is under sequencer control.
Sequencer delays can be adjusted (from 0ms to 100ms, 1ms step) and stored via software settings menu.
Board size is 125mm x 100mm.
Every buyer will get schematic, wiring diagrams and software description.
Every buyer will also get FREE future software updates.
SHIPPING
We ship worldwide from Ukraine by Registered Airmail with tracking number. We ship next business day once payment received. Delivery time depends on destination and Customs, usually it takes about 20-25 business days