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EEZ H24005 programmable bench power supply (powered by Arduino Due)

r5B13a

5 years ago

#36 Improved soft start and DOUT2 controls
#40 High range (0-5 A) sense resistor improvement
#41 Additional current range 0-50 mA (not supported in Firmware v1.02)
#42 Output enters unregulated mode too early
#43 X12, X14 connection improvement on PCB
#44 Remote sense resistors removed
#46 Overvoltage protection for V+ output
#56 USB isolator speed selection
#59 Removed JP5, JP6, JP7 on Arduino shield
#60 R93 PCB layout spacing
#62 Missing information about TFT display in BOM
#64 ZD7 placement
#65 Replace ADG465 with zener diode

3.0

7 years ago

Release synchronized with group buy organized as crowdfunding campaign on Crowd Supply. It also include intermediate builds r5B10, r5B11, and r5B11.1. Require Firmware M5 or newer. Short list of recent changes and improvements:

#9 Fan generates EMI (an attempt to reduce it)
#19 Additional Vin capacitor on Power board
#20 Encoder with switch on Arduino shield (Crowdfunding campaign stretch goal 1)
#23 Power relay MCU controlled on the AUX PS module (Crowdfunding campaign stretch goal 2)
#24 Support for 3.5" Riverdi TFT touchscreen display
#25 Protection improvement for DC power input
#26 Dual range current (Crowdfunding campaign stretch goal 3)
#28 Ethernet LEDs connected wrong
#30 Micro SD card socket
#31 1M resistor in parallel with Ethernet controller crystal
#34 RJ45 modular jack replacement

Please take into account easy to fix issue #42.

Group buy project partners:

Varisom, Portugal, Contact: Mario Sustelo
ITEAD Studio, China, Contact: Sophia Huang
TME.eu, Poland, Contact: Jacek Pietruszewski
Jiang Techology, China, Contact: Anthony Jiang
Kartonaža, Croatia, Contact: Sanja Denac
Vigortronix, UK, Contact: Adam Betts
3KS, China, Contact: Aily Chen
Crowd Supply, USA, Contact: Joshua Lifton

2.0

7 years ago

Completed dual channel SCPI programmable hybrid bench power supply. It comes with 3.2" TFT touch-screen with landscape orientation suitable for housing in 2U enclosure. It can be used with mains transformer (AC input) or AC/DC power adapter (DC input). Requires Firmware M2 (Milestone Two) or later.

This release include the following boards:

Power board r5B9
AUX PS r5B9
Arduino shield +BP r3B4

The building instructions can be found in folder Building instructions where is also covered few mistakes (listed in PCB panel r5B9 known issues.md) that can be easily fixed.

1.0

8 years ago

Completed dual channel SCPI programmable bench power supply. It comes with 3.2" TFT touch-screen with portrait orientation suitable for housing in 3U enclosure. This release will remain be supported by EEZ PSU firmware in parallel with future releases.

This release include the following boards:

Arduino shield +BP r1B14
AUX PS r4B43
Mosfet pre-regulator r3B3b
Mosfet post-regulator r4B45