“I had selected Niranjan to develop an RF Test-Bench that automated S-Parameter Measurements for Correlation with ATE. Niranjan had to integrate a Keysight ENA, Switch-Matrix with the ATE Software. The task was non-standard and required Innovation, Problem-Solving and the ability to Write-Code. Niranjan's contribution enabled the Understanding and development of the Production Test-Methodology for a Wireless Charging Chip-Set. I recommend Niranjan for similar development roles within the RF Discipline.”
Niranjan B Eshappa
San Jose, California, United States
711 followers
500+ connections
San Jose, California, United States
711 followers
500+ connections
About
- Experience in System level HW validation and Post Silicon validation.
- Proficient…
Activity
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Thrilled to have been part of the system team that delivered an innovative product! This is the lowest power spec product I’ve ever worked…
Thrilled to have been part of the system team that delivered an innovative product! This is the lowest power spec product I’ve ever worked…
Liked by Niranjan B Eshappa
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Quite proud of the new Google TV streaming device and the latest Nest Learning Thermostat. It was a long journey to build these iconic products…
Quite proud of the new Google TV streaming device and the latest Nest Learning Thermostat. It was a long journey to build these iconic products…
Liked by Niranjan B Eshappa
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Thrilled to announce that I recently had the opportunity to work on the development of the new Nest Learning Thermostat. My focus was on ensuring the…
Thrilled to announce that I recently had the opportunity to work on the development of the new Nest Learning Thermostat. My focus was on ensuring the…
Shared by Niranjan B Eshappa
Experience
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Education
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New Mexico State University
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• Charge Pump based DC-DC converter to drive a white LED for portable applications.
• Power Management System with an inductor Based Buck and a Boost DC-DC converter (180nm)
• Designed and Implemented Short Channel & Long Channel Bandgap Voltage Reference.
• Designed and Implemented Beta Multiplier Voltage Reference.
• Paper Study: High Power Gain Low Noise Amplifier Design for Next Generation 1-7GHz Wideband RF frontend, RFIC using 0.18μm CMOS.
• Designed and…• Charge Pump based DC-DC converter to drive a white LED for portable applications.
• Power Management System with an inductor Based Buck and a Boost DC-DC converter (180nm)
• Designed and Implemented Short Channel & Long Channel Bandgap Voltage Reference.
• Designed and Implemented Beta Multiplier Voltage Reference.
• Paper Study: High Power Gain Low Noise Amplifier Design for Next Generation 1-7GHz Wideband RF frontend, RFIC using 0.18μm CMOS.
• Designed and Implemented a LDO for Drop out voltage of 80mV.
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1. “Symmetric Cryptography and Haar DWT Watermarking
Techniques to perform Digital Image Steganography.”
2. “Dual Tone Multi Frequency Based robot for performing Home
Automation.”
Publications
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A Low-power Pulse Width Modulator (PWM) for High-frequency DC-DC Converters
Electronic Letters
See publicationA low-power pulse width modulation (PWM) control circuit for high-frequency switching DC-DC converters based on a one-shot circuit is proposed.
https://ieeexplore.ieee.org/document/8352982/
Courses
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A/D & D/A Converters
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ASIC Design
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Analog VLSI
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Control System Synthesis
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Digital VLSI
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Power Management in Integrated Circuits
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RF Microelectronics
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Random Signal Analysis
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Work Teams in Organization
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Projects
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Design of 6-Bit D/A using a Fully Differential Operational Amplifier
- Designed and implemented a 6 bit Digital to Analog Converter using R-2R ladder technique.
- Fully Differential Operational Amplifier was designed for GBW of 10MHz and a Bias current of 30uA.
- The unit resistor was 10KOhm and 1 LSB was equal to 30-35mV.
- The settling time of the converter was equal to 139ns.
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Charge Pump based DC-DC converter to drive a white LED for portable applications.
• Designed, Simulated and taped out a Charge Pump based DC-DC converter to drive a white LED for portable applications using PWM and PFM techniques (130nm)
- Input voltage= 1.8V, Output voltage= 3.3V, Load current= 6mA
- PWM technique was used to set the output voltage from 2.6V to 3.3V, by varying the duty cycle from 5 to 50%.
- PFM technique was used to set variable current at the output from 500uA to 6mA and perform analog dimming of the LED.
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PMOS input folded cascode amplifier
- The amplifier was designed for a GBW of 10MHz taking 5uA of Bias currents.
- The load capacitance was fixed to 10pF and the slew rate was 34MV/s.
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Power Management System with an inductor Based Buck and a Boost DC-DC converter (180nm)
• Designed and Simulated a Power Management System with an inductor Based Buck and a Boost DC-DC converter (180nm)
- The IC supplies power to CPU core, Audio Codec and display backlight of cellular phone operated at switching frequency of 20MHz.
- The Buck converter was used to regulate the Battery source to 2V and a Boost converter was used to display backlight at 3.8V.
- A pulse width modulated voltage feedback mode was used in the control loop.
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Band Gap Voltage Reference
- A constant voltage of 1.2V and 0.8V was obtained respectively.
- A temperature sweep was done from -40’C to 125’C to obtain a temperature coefficient of 4mV/°C and 6mV/°C. -
Low Dropout Voltage Regulator for clean supply
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- Input voltage= 1.8V and output voltage= 1.5V and a dropout voltage of 80mV was obtained.
- Minimum phase margin of 62° and gain margin of 21dB was achieved.
- Line Regulation of 15mV was achieved.
Languages
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English
Native or bilingual proficiency
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Hindi
Full professional proficiency
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Kannada
Native or bilingual proficiency
Recommendations received
2 people have recommended Niranjan B
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