ELECTROWAVES ELECTRONICS PVT. LTD.

FTE PROGRAMME (2019-20)

CONTENTS

• About the Company • On-going Projects • Future Projects • Knowing your workplace • FTE Profile • Pre-requisites • Interview Preparation Tips • Questions to Expect • CTC Offered & Location • Contact Info

ABOUT THE COMPANY

• ISO 9001:2008 Certified Company established in 1999.

• Approved Vendor/Manufacturer of Power Electronics products for Indian Railways.

• Focused on developing and manufacturing high end electronics and electrical products for our customers with state of the art technology.

• We have developed the following products for Indian Railways:

1. 25 kVA Inverter

2. 30 kW Battery Charger

3. 2.5 kVA Inverter

4. 2.5 kW Battery Charger

5. BLDC Fans

6. Cable harness

ON-GOING PROJECTS

• LED lights for Indian Railway Coaches.

• Smart LED Lighting

• Fast EV chargers for EV’s.

• Solar PV based EV Battery Charger.

• Grid Tied Solar Inverter

• High Power Converters for Indian Railways

FUTURE PROJECTS

• 60 KVA Transformers for Indian Railways.

• Power/Control Panels for AC Coaches.

• Central Server for EV charging stations

• Interface between Embedded Hardware with Cloud Based Server.

KNOWING YOUR WORKPLACE

• Newly built R&D lab with ESD safe epoxy flooring and all the instruments like DSO, Power Analyzer, Auto-transformers, Dual DC regulated power supplies and many more.

• Located in Industrial Area Phase-1, Panchkula. 100 metres from Himalayan expressway.

FTE PROFILE

• The following FTE profile is available for B.Tech (ECE/EE/CSE) students:

– IoT Design Engineer

PRE-REQUISITES

• Courses that Students are expected to be familiar: 1. Embedded System Basics: Basic C, Timers, Interrupts, Serial

Communication (UART, I2C, SPI), Peripheral Interfacing (RTC, EEPROM, Sensors, LCD, Push buttons).

2. Analog Electronic Circuits

3. Digital Electronics

INTERVIEW PREPARATION TIPS

• Recommended Lecture Series: 1. Embedded Systems by Prof. Santanu Chaudhary (NPTEL).

• Reference Books: 1. Digital Design by Morris Mano.

2. PIC Microcontroller by Mazidi.

3. Let Us C by Yashwant Kanetkar.

• Required Knowledge: – Basic C Language Concepts

– Microcontroller Concepts (Timers, USART, SPI, I2C, ADC, Peripheral Interfacing)

– Internet of Things

– GSM, GPS, ESP8266 etc.

QUESTIONS TO EXPECT

• Difference between built-in voltage and cut-in voltage of diode?

• Why does negative phase margin and gain margin cause instability in a given system? (Explain Qualitatively)

• Under what conditions is Virtual short valid in Opamps?

• Give an Application of positive feedback in Opamps?

• How can one implement PI controller using Opamps?

• How can you generate a perfect 50% duty cycle square wave using 555 timer?

• Difference between harvard and von-nuemann architecture? Why von-neumann architecture is preferred over harvard architecture?

• Why it is preferred to use microcontroller as a sink rather than a source?

• Design a circuit to read temperature from a thermistor, give the input to microcontroller and display temperature (in °C) on LCD?

• Difference between 8-bit and 4-bit mode of LCD interfacing? Why it is preferred to use LCD in 4-bit mode?

• How would you carry out parallel communication between a 5V microcontroller and a 3V3 microcontroller?

* For any difficulties/discussions/query in any question, please leave a mail. (Mail Id’s on Last slide)

QUESTIONS TO EXPECT

• Design a digital system for the following problem statement: A room has an electronically controlled light. If the room is empty, light should be off and if there is someone in the room, light should be on. There is a PIR sensor on the door which provides logic 1 (for few seconds and then goes to logic 0) for a person entering the room.

* For any difficulties/discussions/query in any question, please leave a mail. (Mail Id’s on Last slide)

PIR Sensor

Digital System

Light

GND

Sensor Provides Pulse Input

QUESTIONS TO EXPECT

• Design an electronic system for the following problem statement: the 3 analog signals are A,B and C. Generate 3 digital outputs X, Y, Z based on the following: (Hint: Use OPAMPS as comparators and Logic gates) – If A>C and A>B, Digital outputs X and Y should be high, Z is low.

– If A>C and A<B, Y and Z should be high and X low.

– If A<C and A>B, Y and Z should be high and X low.

– If A<C and A<B, X and Z should be high and Y low.

* For any difficulties/discussions/query in any question, please leave a mail. (Mail Id’s on Last slide)

? A

B

C

X

Y

Z

+12V -12V GND

CTC OFFERED & LOCATION

• B.Tech: 8.4 LPA

• Location: Plot No. 486, Industrial Area Phase-1, Panchkula, Haryana.

CONTACT INFO

• FOR ANY QUERIES, PLEASE FEEL FREE TO LEAVE A MAIL AT ANY OF THE FOLLOWING EMAIL ID’s:

rashichauhan@electrowaveselectronics.com

veerkarangoyal@electrowaveselectronics.com

sahilgarg@electrowaveselectronics.com

Or Visit us at http://www.electrowaveselectronics.com/