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Application Notes

VPX 28V

This application note provides additional information on the features and performance of the 28 V VPX power supplies. Topology, operation, efficiency and compliance to MIL‑STD‑461F, MIL‑STD‑704 and MIL‑STD‑1275 are discussed in detail.

Input System Instability

This application note details the condition of input system instability that can occur because a DC‑DC converter appears incrementally as a negative resistance load. The note provides an understanding of why this instability arises, and shows the preferred solution for correcting it.

Interface Adaptor Boards

This application note describes the implementation of the interface adapter boards for applications where the customer elects to connect wires to a SynQor module instead of directly mounting to a printed circuit board. Mounting requirements, wiring directions, external component layout and descriptions as well as ordering information is included.

MIL-STD-461 Compliance

This application note describes which SynQor converters and filters have been tested in conjunction for compliance with MIL‑STD‑461 for the control of EMI in military systems. A breakdown of the individual requirements within the specification and the compliance of SynQor modules to each is provided.

NiQor Introduction Application Note

This application note covers the available features and design considerations of SynQor’s high-voltage, non-isolated DCDC converter product families. Examples included in this application note explain how to select the correct part number for a given requirement and how the unique features in these products can be used to simplify the… Read More

Output Load Current Calculation

This application note provides a simple method to calculate the output load current using the current sense resistor found on SynQor’s open frame DC-DC converters. All equations, turns-ratio and sense resistor values are included for the calculations.

Output Voltage Ripple Measurements

This application note explains the existence of occasional high frequency noise spikes when measuring the output voltage ripple on a SynQor converter and how these spikes are largely a measurement artifact. The paper details how to eliminate this measurement error with the proper test set-up and termination methods.

Paralleling Capabilities of SynQor Rack Mount System

This application note provides an overview of the paralleling capabilities of the SynQor Rack Mount System Products. It provides a table of all SynQor rack mount system products which indicates whether they can be paralleled and the type of paralleling method they use.

Paralleling Capability of SynQor Converter Modules

This describes the various paralleling methods used in SynQor converters. It provides a table of all SynQor power converter products which indicates whether they can be paralleled and the type of paralleling method they use. The table also lists whether external paralleling can be implemented if internal paralleling is not… Read More

Start-Up into Capacitive Loads

This application note describes the start‑up characteristics of SynQor converters starting into loads below, near and above the output capacitance limits on the datasheet.

SynQor Series Operation

This application note describes how to connect isolated DC‑DC converters in series to create non‑standard voltages for the industrial market. Wiring diagrams and design considerations are provided for series operation of multiple DC‑DC converters.