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PS3604L

Overview

The PS3604L is a 144 Watt, high performance dc power supply with output current measurement capability in the microampere range. Combination of bench-top and system features in these dc source. For more photos to /Photo.

Convenient bench-top features

  • Up to 144 Watts output power
  • Easy to use knob for voltage and current settings
  • IPS 160x128 pixel front panel display
  • Excellent load and line regulation; low ripple and noise
  • Measurement capability down to microampere levels
  • Light weight

Flexible system features

  • 10/100BASE-T Ethernet

  • Modbus TCP for remote programming

  • Web interface for monitoring

Specifications

Unless otherwise noted, specifications apply when measured after a 30-minute warm-up period.

Performance Specifications

Parameter
Output Ratings Voltage:
Current:
0 – 36 V
0 – 4 A
Programming Accuracy
(@ 25°C ±5°C)
Voltage:
Current:
5 mV
2mA
DC Measurement Accuracy
(@ 25°C ±5°C)
Voltage:
Current 0 – 1 mA:
Current 0.001 – 4 A:
5 mV
0.01 mA
2 mA
Ripple and Noise TBD TBD
Load Regulation TBD TBD
Line Regulation
(change in output voltage
or current for any line
change within ratings)
TBD TBD
Transient Response Time
*1
< 50 μs
  1. For the output voltage to recover to its previous level within 0.1% of the voltage rating of the unit or 20 millivolts following a change in load current of up to 50% of the output current rating

Supplemental Characteristics

Parameter
Input Rating
(at full load )
230 Vac mains: 230 Vac nominal, 50/60 Hz, 0.85A, 200 VA max.
Average Programming
Resolution
Voltage (panel):
Voltage (remote)
Current (panel):
Current (remote)
10 mV<br
1 mV
1 mA
0.1 mA
Output Voltage Rise/Fall Time
(for a change from 10% to 90% or
90% to 10% of the total excursion)
Rise
Fall
< 80 μs
< 10 μs
Command Processing Time 10 ms
Isolation to Ground
(Maximum from either
output terminal to chassis)
200 Vdc
Dimensions Height:
Width:
Depth:
78 mm
158 mm
268 mm
Net weight 3.850 kg

Linear regulator

Linear regulator is a individual module. Module mounted on back cooler. Regulator is four level voltage regulator. Hardware CC/CV detector. Controlled by STM32F337. Used 16bit delta-sigma ADC for measure voltage and current. For measure low current used INA229. AD5663 16bit DAC use for current and voltage setpoint. Used fan speed proportional control for minimize noise. Module communicate by UART ModBus. Module schematic.

Front panel

Front panel is GUI and Ethernet bridge.
Build on STM32F407 MCU, LAN8720 as Eth PHY.
Module schematic.