DESCRIPTION:

The Delta Elektronika SM 70-22 is a 1500W programmable DC power supply designed for precision laboratory, industrial, and automated test applications requiring stable regulated DC output capability. The unit provides an output range of 0-70V and 0-22A with precision voltage and current regulation suitable for telecommunications infrastructure, industrial automation, endurance testing, automotive electronics development, component validation, battery charging systems, and production environments.

The SM 70-22 utilises high efficiency switch mode power conversion technology with efficiencies up to 91%, low ripple and noise characteristics from 1.8mV RMS / 8mV peak-to-peak, and fast recovery time performance from 100µs under dynamic load conditions. The power supply supports both constant voltage and constant current operating modes and is engineered for continuous-duty industrial operation.

Designed within the Delta Elektronika SM1500 series platform, the unit supports analogue programming with programming accuracy from 0.2%, voltage and current monitoring, remote sensing, interlock functionality, and automated instrumentation system integration capability. Master/slave series and parallel operation is supported for higher voltage or current system configurations. Optional high-speed programming, Ethernet, RS232, IEEE488, and isolated interface modules are available depending on application requirements.

The compact 2U high-density design incorporates temperature-controlled forced-air cooling together with integrated overload, short-circuit, overvoltage, and thermal protection systems. The unit supports universal 90-265V AC input operation with active power factor correction and EMC performance exceeding CE requirements for low emission and high immunity industrial environments. MTBF is specified at 500,000 hours.

Key Features

• 0-70V, 0-22A programmable DC output
• 1500W output power capability
• Precision voltage and current regulation
• Constant voltage and constant current operation
• High efficiency switch mode design
• Efficiency up to 91%
• 1.8mV RMS / 8mV peak-to-peak ripple
• 100µs recovery time performance
• 0.2% analogue programming accuracy
• Voltage and current monitoring functions
• Remote sensing support
• Master/slave series and parallel operation
• Optional Ethernet, RS232, IEEE488, and isolated interface support
• Integrated overload and thermal protection
• Universal 90-265V AC input operation
• Active power factor correction
• MTBF specified at 500,000 hours
• Suitable for bench and 19-inch rackmount deployment