Oberseminar Schaltungstechnik

Kontakt: Dr. Bahman K. Boroujeni, BAR 222; oder Dr. Mahdi Khafaji, BAR 256
Ort: BAR/0218/U
Zeit:  Do, 4. DS = 13:00 - 14:30; Beginn am 11.10.2018

Dear students: We will offer this course in the upcomming winter-semester 2018/19 with a more flexible and attractive content comparing to the last years. You are welcome to contact the responsible persons for all questions!

In this course you will learn about the technical aspects related to the design of: a) practical discrete circuits, and b) analog integrated circuits. In addition, you will learn how to present and publish your work. The course consists of:

  • Six weeks of lectures (one lecture per week) at the beginning of semester.
  • A practical work in which you will design a circuit. Here you have two options: (a) you can use LTspice which is a freeware circuit simulator widely-used in the industry for designing discrete circuits and can be easily installed on your laptop, or (b) you can use Cadence if you want to work on analog integrated circuits.
  • You will make a presentation about your practical work.
  • You will also deliver a written final report about the topic of your practical circuit design work. However, this report should be written in a paper publication style, around four pages. This would be a good exercise for you to learn how to write a conference paper, but this will not be submitted to any conference.
  • There is no written exam.


  • Different types/frequency-responses/materials/applications of commercially existing capacitors, inductors, resistors, diodes, loudspeakers, and coils.
  • Examples of different commercially-available op-amp ICs; and designing circuits with them.
  • Pulse circuits, switching power converters, and rectifier circuits. Examples of widely-used signal transistors and power transistors, their electrical characteristics and datasheets.
  • Flexible thin-film electronics.
  • Basics of op-amp design, gain, speed. swing, bandwidth, power dissipation.
  • Study and analysis of simple one-stage and two-stage op-amps.


You choose just one topic from all options below. Please contact the supervisors if you want to suggest new topics.

Circuit design using LTspice:

  • Design of an audio filter and amplifier for compensating the imperfections in the frequency response of a piezoelectric loudspeaker.
  • Design of a RFID energy harvesting circuit, including a coil and a rectifier circuit, for AC/DC energy conversion from a magnetic field at 13.56 MHz.
  • Design of an energy-efficient switching DC/DC converter, e.g. 5 V to 12 V or vice versa.

Circuit design using Cadence:

  • Design of a folded-cascode OTA in 250 nm CMOS process, including bias network and common-mode-feedback.
  • Design of a recycling folded-cascode OTA in 250 nm CMOS process, including bias network and common-mode-feedback.
  • Design of a two-stage OTA with pole-splitting compensation in 250 nm CMOS process.


Instructions for registration in the network (required for Cadence usage)

  • Please inform us until 30.11.2018 via e-mail, which project you like to do.
  • To sign the technology NDA, either do it in our last session this year on 29.11, or come to BAR256 before 7.12.2018. Otherwise you will get access to the technology.
  • To monitor the progress and discuss the designs, you need to make a short presentation, and present it on our regular class time, on 31.01.2019.

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Bahman Kheradmand Boroujeni
Letzte Änderung: 27.11.2018