Questions and answers:
- What are the main applications of the TDK-Lambda HWS3000G power supplies? Test and measurement, semiconductor fabrication, RF amplifiers, laser machining, printing, and industrial equipment.
- How can users control or program the output of the HWS3000G? By using a serial RS485 interface (MODBus protocol) or analog signals, even when the unit is off.
- What features support the HWS3000G's use in harsh environments? The /HD option adds board coating and compliance with MIL-STD-810G shock and vibration standards, and the unit operates from -20 to 70 degrees Celsius efficiently and with reduced internal heating.
SAN DIEGO – TDK-Lambda Americas Inc. in San Diego is introducing the HWS3000G 3000-Watt programmable AC-DC power supplies for test and measurement, semiconductor fabrication, RF amplifiers, laser machining, printing, and industrial equipment.
The nominal output voltages and output currents are programmable (CV/CC) from zero to their maximum rating. These models have an /HD option for board coating and the ability to meet MIL-STD-810G shock and vibration in harsh environments. The /RF option to reverse the airflow direction.
The HWS3000G power supplies can deliver 1500 Watts with a low-line single-phase input voltage of 85 to 132 Volts AC and 3000 Watts at a high-line of 170 to 265 Volts AC.
Four nominal output voltages, 24, 48, 60 and 130 volts, can be programmed to provide 0 to 28.8, 0 to 52.8, 0 to 66, and 0 to 156 volts. As many as three units can be connected in series, or 10 units in parallel.
Digital programming
Users can program and monitor output voltage slew rate digitally, along with information on cumulative operating time, fault log, and product identification information. Digital programming is without turning the power supply on.
Output programming happens using a serial RS485 interface (MODBus protocol) or analog 1-to-5-volt or 4-to-20-milliamp signals. These compact products also feature variable-speed fan with typically 45 decibels of audible noise at less than 70 percent load, and a 25-degree-Celsius ambient temperature.
A 5-volt 2-amp standby voltage, remote on/off, remote sense, fan fail and power good signals are fitted as standard. With efficiencies of up to 93 percent, internal heating is reduced, allowing reliable operation in the compact package size. The HWS3000 models can operate in temperatures from -20 to 70 degrees Celsius, derating linearly from 50 C to 50 percent load at 70 C.
Both models have a seven-year warranty and conservatively rated electrolytic capacitor temperatures for long field life. The output terminals are user-configurable for horizontal or vertical connections.
Tell me more about programmable AC-DC power supplies ...
- Programmable AC-DC power supplies convert AC power to DC and enable the user to program or control output voltage, current, and sometimes power. Key Features include programmable output; digital control through interfaces like USB, RS232, LAN, GPIB, or CAN; remote control and monitoring; several output modes' over-voltage protection, over-current protection, and thermal protection. Typical applications are aerospace and defense; automated test equipment; battery charging and testing; electric vehicles; and industrial automation.
The input to output isolation is 3000 Volts AC, input to ground 2000 Volts AC, and output to ground 1500 Volts AC. The leakage current is less than 0.85 milliamps and the maximum operating, transportation, and storage altitude is 5,000 meters.
Safety certifications include IEC/EN/UL 62368-1 and IEC/EN62477-1 (OVC III) with CE/UKCA marking for the low-voltage, EMC, and RoHS directives. The units meet EN55032A, EN55011-A and FCC-A conducted and radiated emissions. The series also complies with the EN 61000-3-2 harmonics and IEC 61000-4 immunity standards.
For more information contact TDK Lambda Americas online at www.us.lambda.tdk.com.
