Supplies test with micro resolution

Amrel/American Reliance has released what it claims to be the industry's first dual-channel switch-mode power supply under 600W.

Amrel/American Reliance has released what it claims to be the industry's first dual-channel switch-mode power supply under 600W.

Until now, standard switch-mode supplies usually range from above 600W or below 200W.

As the newest member of Amrel's Power line of programmable power supplies, the SPD's innovative design fills in the power gap, with power levels from 300 to 360W.

Conveniently packaged in a standard 19in 1U high box, the SPD offers voltages ranging from 8 to 300V DC.

The SPD emphasises user-friendliness with front panel keypad and encoder control, voltage tracking function, and a VFD display providing key information for each channel.

Models without a front panel keypad and encoder are available as the perfect solution for burn-in and ATE system applications.

Amrel's Power SPD models offer a wide array of embedded interface capabilities; GPIB and RS232 (standard), and USB and Ethernet (optional).

RS485 (optional) with internal load sharing is available for synchronised parallel operation, allowing for simple system and power expansion.

Network system configurations are available in two formats; the Ethernet star configuration through an MCU-2 controller or a RS485 daisychain configuration using a MC-2 controller.

With programming accuracy of 0.1% of maximum rating, voltage read back accuracy of 0.2% of maximum voltage and current read back accuracy of 0.3% of maximum current, the SPD has excellent accuracy specifications, matching its linear power supply counterpart.

Select SPD models use a 16bit design, bringing resolution down to the microvolt and microamp range for different voltage and current combinations.

PARD performance is enhanced with RMS voltage as low as 1mV and peak-peak voltage at 15mV to satisfy noise-sensitive applications.

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