New Industry Products

has redesigned its AVP Series of dc/dc converters

October 31, 1999 by Jeff Shepard

World Trade Services (WTS, Ashland, MA) announced that Autronic (Germany) has redesigned its AVP Series of dc/dc converters. WTS claims the AVP Series is ideal for industrial equipment, control and monitoring systems, portable instruments, data transfer equipment, and mobile applications. According to the company, the devices have been redesigned with a new type of electronic thermal switch which switches off the converter when the casing temperature rises above 105 degrees C. This is claimed to make the converters less sensitive to vibration and shock. The converter also features an improved hysteresis characteristic and only needs to cool by 10K for the AVP to switch on again automatically. To improve stability, the company redesigned the converter with a greater operating range (-55 to +125 degrees C). Oscillations have been reduced throughout the temperature range to as little as 20 percent of previous values. In absolute figures that means typically less than 30mV per A load change. If there is a voltage drop at the input, the oscillations at output are reduced by a further 10dB. On switching on, the output voltage rises without oscillation. Autronic also claims the device has an increased efficiency of three percent, for example from 87 to 90 percent, and that 34 percent less heat is produced. In quantities of 100, pricing for the AVP starts at $130 each.