Device Physical and Parametric Characteristics of Low Noise Amplifiers (LNAs)

The weakest signal a wireless receiver can recover is defined by its sensitivity. As the name implies, a Low Noise Amplifier (LNA) increases receiver sensitivity by reducing cascaded noise figure. The Friis equation shows the noise figure (F1) of the first amplification stage in the receiver chain. introduce The weakest signal a wireless receiver can […]

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Take you to unlock the basics of AC/DC and DC/DC converters

First, let’s go through the concepts of AC (alternating current) and DC (direct current). What is AC Acronym for Alternating Current. AC is an electric current that changes periodically in magnitude and polarity (direction) over time. The number of times the polarity of the current changes within 1 second is called the frequency and is […]

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Design of power mode control based on MLX80001 4-channel LIN transceiver

This article describes the best practice procedure for power mode control of the MLX80001 4-channel LIN transceiver. This document should be considered a companion guide to the mode control procedure in the MLX80001 datasheet. Special procedures for going to sleep and waking up In addition to the timing and state transitions shown in the datasheet, […]

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Simple and Affordable Solutions Using ADI’s LT1083 Regulators

When designing the power section of any board, the most commonly used regulators are 78XX, 79XX, LM317, LM337 or similar. Engineers know these controllers are safe, reliable and easy to use, but they have limited current. If higher currents are required, a simple and affordable solution can be achieved using ADI’s LT1083 regulator. A powerful […]

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Qorvo’s Low-Power PMICs for Medical Wearables

According to IDC statistics, the global shipments of wearable devices in Q3 2021 will reach 138.4 million units, a year-on-year increase of 9.9%, of which the domestic market shipments will reach 35.28 million units, a year-on-year increase of 5.0%. %, the global smart wearable device shipments are expected to reach 632 million units in 2024. […]

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There are two main options for LED electronics designers to configure multiple LED strings

Before the invention of dynamically scaling high power linear regulators, LED electronics designers had two main options for configuring multiple LED strings: Regulate each string individually with a switching regulator; or Hit your luck with a series-parallel configuration. Regulating each LED string with a switching regulator (usually in a buck configuration) provides the highest level […]

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Buck Switching Regulators and LDOs in Industrial and Automotive Applications

Autonomous control is extremely common in both industrial and automotive applications, and many autonomous controls rely on current loops. Taking industrial applications as an example, current loops are ubiquitous in control loops that work in both directions. The loop transmits the measured values ​​from the sensor to the programmable logic controller PLC, which in turn […]

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Installation points of electromagnetic flowmeter

Installation requirements of electromagnetic flowmeter In order to make the electromagnetic flowmeter work stably and reliably, the following requirements should be paid attention to when selecting the installation site: 1. Try to avoid ferromagnetic objects and equipment with strong electromagnetic field (large motor, large transformer, etc.) to avoid the magnetic field affecting the working magnetic […]

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