A laboratory supply for EMC measurements

Here you find the details for the internship named "A laboratory supply for EMC measurements" in the company ON Semiconductor Belgium BVBA.

Name: A laboratory supply for EMC measurements
Company: ON Semiconductor Belgium BVBA

ON Semiconductor Belgium develops and manufactures integrated circuits (ICs) with a focus on advanced power solutions with working. The site houses a 0.35 µm-fab for products with a supply voltage of up to 65 V. In addition, the company works on IC technology research, software development and application engineering, i.e. hardware development on board level to guide customer designs.

For the latter branch of the business unit "Energy Management Products (EM)" we are looking for a motivated electrical engineering intern.

Our business unit develops ICs for power line communication (PLC), building control (KNX standard) and industrial automation (HART and MBUS standards). These must comply with a number of standards on electromagnetic compatibility (EMC).

The measurements that demonstrate this compatibility are not trivial as the results are easily skewed by parasitic coupling. One possible coupling path is the supply of the device to be tested. Commercial laboratory supply have a quite low capacitive impedance to the power grid. Supplying the circuit from a battery can solve this problem.

Another problem commonly occurs when measuring the electromagnetic emission of a circuit. This emission is often swamped by the emission of the power supply. This problem, too, can be solved with a battery supply.

So far we have always improvised the battery supply for our EMC measurements. For the future we would like to have a more robust solution.

The purpose of this summer internship is the design of a linear power supply with batteries. The supply must be electrically and mechanically robust, ao with current limiting and an alarm when the battery supply drops too far. The voltage and current limits must be adjustable from a microcontroller. The latter should obviously introduce no additional interference.

You design the schematic, the layout and the enclosure. You also write the documentation and coordinate the production with our suppliers.

Time permitting, you test the designed instrument and you start developing the micro controller firmware.

Of course, you will be coached during the internship by an engineer of the business unit.

Required knowledge:
- Basic background and practical experience with electronics on board level.
- Some experience with printed circuit board (PCB) design.
- Knowledge of analogue design; knowledge of microcontrollers is a plus.
- Good knowledge of technical English.

Target profiles:
  • Burgerlijk Ingenieur - Electronic Circuits and Systems
  • Burgerlijk Ingenieur - Computer Science Engineering
In industries:
  • Elektronica
  • Technologie
Required special knowledge:

Duration: To be discussed
Paid: No
Net wage: -
Foreign: No