This is a high-stability, output-current-controlled switch-mode, true-bipolar power converter for electromagnet. The power converter is capable of delivering output voltage (up to ±50 V DC), output current (up to ±15 A DC), and output power (up to 600 W) ratings with minimum alterations. It operates from 60 V max dc input source. The power converter is developed on a single 6U four-layer PCB, complete with power circuit, control electronics and interface electronics for its remote operation. It is equipped with precision current sensor, electronics and on-board constant-temperature bath that provides output current stability within +/- 100 ppm of the full-scale current (for 8 hours after 1 hour of warm-up). It is capable of being operated in both the polarities of output voltage and current, with smooth zero cross-over. Important signals are available on the front panel facilitating in-situ diagnosis/monitoring of the operational status.

Salient Features

Advantages

·        Standardized design, which minimum modifications, to cater to various rating within the specified limits

·        Since it is a single-board design, the manufacturing process is industry-friendly

·        Commonly available components and processes involved

·    Commonly available infrastructure in an industry manufacturing electronic systems is sufficient. Minimum investment needed to set-up additional infrastructure, if any.

·        Demonstrated repeatable performance in manufacturing, testing and performance.

·        Rugged, reliable power converter

·        Output current stability within +/- 100 ppm.

·        True bipolar operation

·         Easily accessible important signal for in-situ monitoring and diagnosis.

Areas of Application

The power converter is useful to energize electromagnets in particle accelerators and associated beam transport lines used typically for:

·         Food irradiation

·         Industrial processes like sterilization of medical products, etc.

·         Material processing and modifications

·         Medical applications

·         Cargo scanning

·         Basic research

Brief Description

This is a high-stability, output-current-controlled, switch-mode, true-bipolar power converter for electromagnet. The power converter is capable of delivering output voltage (up to ±50 V DC), output current (up to ±15 A DC), and output power (up to 600 W) ratings with minimum alterations. It operates from 60 V max dc input source. The power converter is developed on a single 6U four-layer PCB, complete with power circuit, control electronics and interface electronics for its remote operation. It is equipped with precision current sensor, electronics and on-board constant-temperature bath that provides output current stability within +/- 100 ppm of the full-scale current (for 8 hours after 1 hour of warm-up). It is capable of being operated in both the polarities of output voltage and current, with smooth zero cross-over. Important signals are available on the front panel facilitating in-situ diagnosis/monitoring of the operational status.

Process

Since it is a single-board design, the manufacturing process is industry-friendly. Special manufacturing infrastructure / environment / processes are not required. Standard PCB production, assembly, winding and testing techniques are applicable. All components are normal through-hole component and are available in Indian market.

Advantages

·         Standardized design, which minimum modifications, to cater to various rating within the specified limits

·         Since it is a single-board design, the manufacturing process is industry-friendly

·         Commonly available components and processes involved

·         Commonly available infrastructure in an industry manufacturing electronic systems is sufficient. Minimum investment needed to set-up additional infrastructure, if any.

·         Demonstrated repeatable performance in manufacturing, testing and performance.

·         Rugged, reliable power converter

·         Output current stability within +/- 100 ppm.

·         True bipolar operation

·         Easily accessible important signal for in-situ monitoring and diagnosis.

Salient Features

Areas of Application

The power converter is useful to energize electromagnets in particle accelerators and associated beam transport lines used typically for:

·         Food irradiation

·         Industrial processes like sterilization of medical products, etc.

·         Material processing and modifications

·         Medical applications

·         Cargo scanning

·         Basic research

Facilities Required

Standard facilities available with a manufacturer of electronic systems such as PCB manufacturing, component soldering, standard mechanical shop floor for assembly etc. are necessary for production. Some of the items (e.g. magnetic components, heatsinks etc.) can also be sub-contracted by the industry if the related infrastructure is not available under the same roof. However, the manufacturer desirous of acquiring the technology should have a complete in-house board assembly facility following IPC 610. Standard test and measurement equipment (meters, oscilloscopes etc.) are sufficient. Various sources of precision meters and sensors are commercially available for the manufacturer to augment the infrastructure.