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Anindita Bhattacharya

Anindita Bhattacharya
Anindita Bhattacharya is principal solutions architect in Semtech’s Advanced Protection & Sensing Products Group. She is also an adjunct faculty at San Jose State University.

Recent Posts

Posted by Anindita Bhattacharya on 23 February 2024

Picture bustling factories filled not with massive, outdated machines but with streamlined, efficient counterparts: robots darting around, intricate sensors overseeing every process, and data seamlessly flowing for real-time control. To tackle the challenges posed by critical industrial environments, engineers actively seek integrated circuits (ICs) housed in semiconductor packages known for their resilience and reliability. These packages must demonstrate exceptional thermal and mechanical durability and robust electrical performance under demanding conditions, ensuring optimal functionality and prolonged system life.

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Tags: Circuit Protection

Posted by Anindita Bhattacharya on 08 November 2023

Surveillance cameras have become ubiquitous in today's world. Whether we're taking a morning jog in the neighborhood, escorting our children to school or commuting to work, chances are security cameras are monitoring us. Americans are captured on security cameras about 238 times weekly. The widespread adoption of security cameras on both private and public properties is on the rise, primarily due to ease of installation and the sense of safety they offer. Once set up, cameras promptly begin recording images and videos, allowing authorized users to access real-time video feeds over the internet via smartphones or other devices. 

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Tags: Circuit Protection

Posted by Anindita Bhattacharya on 09 October 2023

Today's automobile stands at the forefront of technological advancement with a vast array of sophisticated functions such as self-driving capability, GPS navigation, hands-free phone operation via Bluetooth further enhanced by Apple CarPlayTM and Android AutoTM along with many cutting-edge features that improve safety and comfort. The more features are added to an automobile, the more semiconductor components are used. The semiconductor components employed in automotive applications must satisfy the qualification criteria outlined in AEC-Q standards. This international standard specifies the qualifications necessary for packaged integrated circuits and discrete devices utilized in in-vehicle electronic systems. As more interfaces are used for high-speed signal transmission, more semiconductor components are added to automotive systems.

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Tags: Circuit Protection

Posted by Anindita Bhattacharya on 21 June 2023

Application of IoT and the Importance of ESD Protection

The Internet of Things (IoT) is a network of physical devices embedded with sensors, software, and other technologies to connect and exchange data with other devices and systems over the Internet. It shares the data with a Cloud server or a gateway to analyze and take corresponding actions (Figure 1). One noteworthy application of IoT is in agriculture. The amount and time of water irrigation are decided based on IoT sensors that gather information on soil moisture content, nutrients, fertilizer amount, and weather information—helping farmers make smart decisions to prevent wasting resources. IoT applications have also become very popular in manufacturing and industrial automation, from factory floors to department stores, tracking machine performance, measuring product quality, and asset tracking to real-time location systems. In smart home automation, IoT-based systems have made our homes safer and easily maintainable.

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Tags: Circuit Protection, Internet of Things

Posted by Anindita Bhattacharya on 17 May 2023

The Internet of Things (IoT) is a network of sensors and devices connected to the Internet to share and exchange data and instructions with a local or Cloud gateway/server (Figure 1). IoT sensors are a vital element of the IoT ecosystem, and increasingly they are using wireless technologies to service and connect all types of use cases and location-specific constraints. These sensors collect real-time data and share it with the gateway to forward to a Cloud-based application for processing, enable better decision-making at the ‘edge,’ or automate processes. Wireless communication protocols such as LoRaWAN®, cellular, Bluetooth, and Wi-Fi help transmit the data.

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Tags: Internet of Things

Posted by Anindita Bhattacharya on 17 May 2023

The Importance of Keyboard ESD Protection

Since the dawn of computers, the keyboard has been the primary communication mechanism between human and machines. Over the years, many technologies and interfaces have changed, but the keyboard has barely changed in both form and function. Recently, I bought an exclusive wireless keyboard. Initially, it communicated with the computer via Bluetooth without any issues. However, after a month or so, it suddenly stopped. When I opened the internal circuit, I was surprised that the keys had no electrostatic discharge (ESD) protection. Any electronic device's keypad, side keys or push buttons are vulnerable to ESD due to constant human interaction with them. Adding ESD protection devices in a keyboard/keypad/side keys can avoid disastrous situations such as the failure of my keyboard. Let us discuss ESD in general and how we can protect our electronic devices from it.

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Tags: Circuit Protection

Posted by Anindita Bhattacharya on 08 December 2022

Whether you are watching an action replay of a baseball game on a giant screen at a stadium, a movie on your large-screen TV or streaming a video on your laptop computer, a high-quality audiovisual (AV) experience is always expected. Ultra-High-Definition Serial Digital Interface (UHD-SDI) and High-Definition Multimedia Interface (HDMI) are two standards for digital AV transmission. UHD-SDI standardizes the transmission of uncompressed and unencrypted digital AV signals over coaxial or fiber optic cables. HDMI is a digital interface for transmitting high-definition, high-speed digital multi-track audio and uncompressed video signals from HDMI-compliant sources to AV displays. Even though they both can transport ultra-high-definition AV signals from a source to a display, HDMI is preferred to connect consumer gadgets such as computers, gaming consoles, Blu-ray/DVD players, televisions, projectors, etc. UHD-SDI is preferred for high-end applications such as professional indoor/outdoor video production and television broadcasts because it supports long-range transmission and a rugged connection with the help of a physical lock mechanism at each end of the cable. UHD-SDI coaxial cable can transfer signals up to 300 feet, whereas HDMI cables struggle with excessive signal degradation even within 50 feet. These two interfaces can be used together via an HDMI-SDI or SDI-HDMI converter. For example, as shown in figure 1, an HDMI display would be used for confidence monitoring of an SDI stream to avoid the need to use specially calibrated SDI-specific displays.

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Tags: Broadcast Video, Circuit Protection

Posted by Anindita Bhattacharya on 28 November 2022

Not too long ago, my only fitness tracker was a pedometer in my pocket to measure my daily step count. Things have since changed very quickly. I now have a smartwatch on my wrist to track my daily activities, including steps completed, distance covered, calories burned, heart rate, and breathing pattern. I also receive alerts for messages, take calls, listen to my favorite podcast, and check the weather via my smartwatch. These are all in addition to seeing the accurate time of the day. Due to all these innovative features, wearing a smartwatch and using it as a fitness tracker is the trend for the health-conscious population worldwide. While these wearables help people remain fit, extra care needs to be taken by the manufacturers to protect these wearables from electrical overstress (EOS) and electrostatic discharge (ESD) generated from the body of the person wearing these devices.

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Tags: Circuit Protection

Posted by Anindita Bhattacharya on 25 October 2022

HotSwitch® is a new product line of devices from Semtech with an integrated load switch or eFuse that protects electronics systems against typical electrical transients and steady-state fault conditions. Primarily, the HotSwitch device turns on or off the current flow to a power rail as-needed. It detects electrical surges and secures the downstream subsystem by disconnecting the load from the power source. At the same time, the devices in Semtech’s HotSwitch portfolio provide an enhanced shield against inrush current, overvoltage, under voltage, reverse current, short circuit, and over-temperature faults. Figure 1 shows how a system is protected by a HotSwitch device.

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Tags: Circuit Protection

Posted by Anindita Bhattacharya on 16 June 2022

The U.S. Department of Transportation (USDOT) and the National Highway Traffic Safety Administration (NHTSA) have published regulations that require all cars, SUVs, trucks, and vans to have rear-view visibility systems that started May 1, 2018. In fact, until recently, the rear-view camera was the only camera used in many car models and was considered an excellent safety feature. Modern vehicles have evolved significantly in the past few years, adopting innovative safety features that include blind-spot detection, surround-view monitoring, forward and rear collision warning, lane keep assistance, and autonomous parking assistance. These features utilize cameras and sensors to inform the driver about the car and its surroundings via the dashboard display. Now, there are at least six cameras present in high-end vehicles. There may be video display systems in cars like DVD players and TVs for passengers.

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Tags: Circuit Protection, Automotive

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