Solutions to security threats faced by smart meters through their entire life cycle from Maxim, app note here: This application note explores the various potential points of attack in the life cycle of smart meters: during manufacturing, installation, operation, and post-installation. The application note then discusses real solutions to these security vulnerabilities, such as the use […]
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App note: Getting the most out of the MAX14920/MAX14921 high-accuracy battery-measurement AFEs
An application note from Maxim on getting the most out of the MAX14920/MAX14921 high-accuracy battery-measurement AFEs: The MAX14920/MAX14921 is a high-accuracy battery-measurement analog front-end (AFE) ideal for cell balancing and battery-measurement applications. The performance of the system in which the MAX14920/MAX14921 is used, however, depends highly on the components that support and surround it. This application note provides […]
App note: MAX31730 3-Channel remote temperature sensor
Here’s an application note from Maxim on triple remote temperature sensor: The MAX31730 temperature sensor monitors its own temperature and the temperatures of three external diode-connected transistors. The operating supply voltage is from 3.0V to 3.6V. Resistance cancellation compensates for high series resistance in circuit-board traces and the external thermal diode, while beta compensation corrects for temperature-measurement […]
App note: Understanding multidrop address assignments for thermal sensors
Here is a app note from Maxim on multidrop thermal sensing: In many thermal applications, it may be desired to utilize multiple temperature sensors, placed in different physical locations, to monitor the operating temperatures in predefined ‘zones’ within the system. To accommodate this desire, many thermal products have the added flexibility of user-defined slave addressing. A […]
App note: Small, high-voltage boost converters
Produce high-voltages from low input sources as low as 2.5V, Maxim’s app note discusses three topologies and their limitations as well as their advantages on achieving these large voltages. The biasing of avalanche photodiodes (APDs), piezoelectric transducers (PZTs), vacuum fluorescent displays (VFDs), and microelectromechanical systems (MEMS) require high-voltage power supplies. This app note presents three […]
App note: VCO enables a hands-free car kit for cell phones
Locally broadcast your cell phone through FM band using MAX2606 from Maxim. App note can be found here. This design idea presents an integrated IF voltage-controlled oscillator (VCO) that can retransmit the audio signal from a cell phone to the FM broadcast band. By placing the cell phone’s speaker near the microphone, the user can […]
App note: Selecting the Optimum Voltage Reference
An application note from Maxim giving you hints when selecting voltage references on your designs. What could be more basic than a voltage reference—a simple, constant reference voltage? As with all design topics, there are tradeoffs. This article discusses the different types of voltage references, their key specifications, and the design tradeoffs, including accuracy, temperature-independence, […]
App note: Implementing an Isolated 1-Wire Bus
An app note from Maxim: Implementing an Isolated 1-Wire Bus The 1-Wire® bus has become increasingly popular for the authentication and calibration of sensors and consumables in medical equipment, where galvanic isolation is required. Building on application note 4206, “Choosing the Right 1-Wire Master for Embedded Applications,” this article explains how to modify existing 1-Wire […]
App note: Lithium-Ion battery recycling made easy
An app note from Maxim: Lithium-Ion battery recycling made easy This application note describes how to recycle lithium-ion (Li+) batteries from older devices for use in other electronic devices, such as toys. This can all be done without the need for a microcontroller (or the required software). One challenge is that the battery charger in these […]
App note: Hardware security ICs offer large security returns at a low cost
An application note from Maxim: Hardware security ICs offer large security returns at a low cost In the face of security vulnerabilities in health and safety applications, governments and industry leaders have focused on security weaknesses in the design and protection of electronic devices. This article explains how using hardware security ICs dramatically reduces the risk […]
App note: Advantages of IC-based hot-swap circuit protection
Here’s an application note from Maxim describing hot-swap circuits, and the advantages of dedicated hot-swap ICs over discrete component circuits: There are many approaches for protecting a system against electrostatic discharge (ESD), surge current, overcurrent, undervoltage, overvoltage, and other disruptions to power. Industry, company, or regulatory standards such as UL®, USB, IEEE®, CSA, or IEC […]
App note: Regulator topologies for battery-powered systems
Here is an app note from Maxim describing the various SMPS regulator topologies for battery powered systems: This tutorial presents an overview of regulator topologies for battery-powered equipment. The discussion covers linear regulators, charge pumps, buck and boost regulators, inverters, and flyback designs. The importance of peak current is explained, and schematics of each topology […]
App note: Protect Your Designs from malware with the DeepCover MAXQ1050 secure microcontroller
Here’s an app note from Maxim describing how to protect your embedded systems from Malware with DeepCover MAXQ1050 Secure Microcontroller: Malware injection has become a critical threat to embedded systems. Implementing an asymmetric cryptography-based secure boot is the best protection against this class of attacks. This application note describes the key principles of such a secure […]
App note: Understanding common-mode signals
Here is a tutorial from Maxim on common-mode signals. To understand how common-mode signals are created and then suppressed, you should first understand the interaction of shields and grounds in common cable configurations. The following discussion defines a common-mode signal, reviews the common cable configurations, considers shielded vs. unshielded cables, and describes typical grounding practices. […]
App note: Protecting 1-wire 5V slaves from overvoltage
Here is a tutorial from Maxim describing how to protect your 1-wire slave devices from overvoltage. If an application requires writing to EPROM devices after deployment, 5V devices need to be protected from overvoltage exposure. This article explains how to have 1-Wire EPROMs and 5V 1-Wire devices on the same bus, if the 5V devices […]
App note: Ensure long lifetimes from electrolytic capacitors
Here is an article from Maxim describing the longevity of electrolytic capacitors in conditions which require high temperatures. As well as some pointers in LED light bulb design. Electrolytic capacitors are notorious for short lifetimes in high-temperature applications such as LED light bulbs. The careful selection of these devices with proper interpretation of their […]
App note: Process high-voltage input levels into a low-voltage ADC without losing much SNR
Here’s an application note from Maxim: Process high-voltage input levels into a low-voltage ADC without losing much SNR It is often difficult to find an analog-to-digital converter (ADC) that aligns with the analog input range, but also has the appropriate number of inputs, the needed size, and the correct sample speed. Especially for system designers working […]
App note: Guidelines for reliable long line 1-wire networks
Here’s a guidelines for reliable 1-Wire Network from Maxim: The 1-Wire protocol was originally designed to facilitate communication with nearby devices on a short connection. 1-Wire was also a way to add auxiliary memory on a single microprocessor port pin. Methods were later developed to extend the 1-Wire protocol to network applications well beyond the […]
App note: Tin whiskers are real and complex
This app note discusses the problems caused by the removal of lead from electronics and ways to mitigate tin whiskers: “Tin whiskers” is not an imaginative, fanciful term for some aspect of electronics manufacturing. Tin whiskers are real. They are microscopic conductive fibers emanating from pure tin surfaces, and they pose a serious problem to […]
App Note: Adding intelligence to LED lighting
Here’s a tutorial from Maxim on how to design smarter LED lighting. How smart is your LED lighting system? While LED lighting holds the promise of reducing energy consumption and maintenance costs, smart LED lighting designs improve system performance in both areas, achieving higher performance per watt and reducing cost in the long term. […]