$140.00 AUD

3 in stock



Eltek Flatpack2 HE 48V/2000W is an ideal power supply for 1 kW class amateur radio Solid State Power Amplifier projects.

This 3.5″ touchscreen-based controller allows setting and monitoring of parameters that Flatpack2 provides via it’s CAN-bus:

• AC Volts in
• DC Volts out
• Load current
• Intake temperature
• Output temperature
• Operating status
• Alarm & warning messages

Main screen:

Current (as in ‘now’) voltage can be shifted up or down in 200mV steps by touching the UP/DOWN arrows.

This does not affect the default start up voltage.


Log in icon indicates when controller sends a log in request.  Every 5 seconds.


Short press “SET” button: reset screen saver

Long press “SET” button: enter Set menu


Set Menu:


The following can be configured on the Screen Settings page:

• Screen brightness

• Screen saver (enter 0 to disable screen saver)

• Output voltage to 1 or 2 decimal places


The following can be configured on the General Settings page:

• Current Limit in deciAmps

• Short or long ‘walk-in’.


Set Default Volts page.


Voltage is entered as decivolts by keypad.

ie: 48.00 V = 4800



If an alarm or warning (or both) state is detected, the appropriate icons become red.


Clicking on either of these icons will take you to the Warnings/Alarms page:


Foreground and background colours of each parameter can be adjusted to your own preference, as well as a choice of two fonts.

Example: setting DC Volts colour & font:


+5V power supply uses a Maxim MAX5035 DC-DC Step-down converter.  The MAX5035 is rated to an input voltage of 76 volts.

Quality Panasonic aluminium electrolytic capacitors are used. Capacitor on the DC input is rated at 100V.

A diode on the DC input provides against accidental reverse polarity connection.


The controller easily mounts to the Flatpack chassis, or any other flat surface, using adhesive PCB stand-offs (supplied).


What’s in the box?

• 1 x Controller board is fully assembled with CAN bus adapter, Arduino Nano, programmed and tested

• 1 x Nextion 3.5″ Enhanced HMI touchscreen, programmed and tested

• 1 x matching 2 pin polarised connector for PCB power

• 1 x matching 3 pin polarised connector for CAN data

• 4 x adhesive PCB stand-offs


This is ready to connect to your own Flatpack2 and breakout board.

I use this breakout board: https://www.ebay.com.au/itm/Eltek-Flatpack-2HE-Power-Boards/192955142487?hash=item2ced05d157:g:MZMAAOSwp-Zcenpk


Designed to control one Eltek Flatpack2 HE 48V/2000W rectifier being used as a general purpose PSU. 

This product is not intended to be an intelligent battery charger controller.


Download:  Eltek Flatpack2 Controller User Guide


Note:  Flatpack2 rectifier and Flatpack2 interface PCB seen in sample images are not supplied with this item

Additional information

Weight 200 g
Dimensions 160 × 105 × 80 mm