Non-isolated step-down DC-DC converter

This reference design provides design guidance, data, and other content for multiple non-isolated step-down DC-DC converter power supplies. A variety of power supplies are optimized for a variety of outputs, loads, and board mounting areas.

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200W Active Clamp Forward DC-DC Converter

This reference design provides design guidance, data, and other content for a 200W active-clamp forward DC-DC converter using N-channel MOSFETs as clamp switches.

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IH induction cooker inverter circuit

This reference design provides design guidelines, data, and other content for an IH induction cooker inverter circuit based on voltage resonant soft switching.

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100W LLC DC-DC Converter

This reference design provides design guidelines, data, and more for a 100W LLC DC-DC converter using LLC resonance to achieve zero voltage switching.

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Power Multiplexer Circuit

In this reference design, a power multiplexer circuit with 2 inputs and 1 output is implemented on a small printed circuit board (PCB). Using MOSFET gate drive circuit ICs, eFuse ICs, Zener diodes, and small package MOSFETs selected from Toshiba's various product lines, an ideal diode with BBM and MBB switching is created.

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1.6kW T-type three-level PFC power supply

This reference design provides design guidelines, data, and more for a 1.6kW AC-DC converter power supply using a T-type three-level power factor correction (PFC) circuit.

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Simple circuit to detect mobile phones

Cell phones typically send and receive signals in the frequency range 0.9 to 3GHz. This article provides a simple circuit that detects the presence of an activated mobile phone by detecting these signals.
The basic principle of the mobile phone detector circuit is to detect radio frequency signals. In Schottky diode circuits, Schottky semiconductors are used to detect mobile phone signals because of their unique properties of being able to correct low-frequency signals with low noise rates. When an inductor is placed near an RF signal source, it receives the signal through mutual inductance. This signal is rectified by a Schottky diode. This low-power signal can be amplified and used to power any indicator light, such as an LED in this case.

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Based on ST ST25RU3993 unmanned convenience store ultra-high frequency UHF RFID reader solution

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NHS3100 Starter Kit for Treatment Adherence

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PNEV5190MB NFC module

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easySwitchBox: Remote LoRa® wall switch powered by coin cell battery and Arduino IDE

easySwitchBox does one simple thing - it sends an on/off signal to any relay, actuator or other item. It can be used to trigger any event wirelessly and over long distances (even up to several kilometers using LoRa®). Programming is easy using the Arduino IDE, and communication is protected by a certified chip. easySwitchBox not only makes your projects more efficient, but also looks more professional.

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cuplTag: NFC tag that records temperature and humidity (schematic, PCB, source code, etc.)

cuplTag is a battery-operated NFC tag that records ambient temperature and humidity. Tap it with your NFC-enabled phone and you'll see the timestamped reading appear in the web app. No configuration required, no application installation required, just one step!

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Chhavi: ESP32 based fingerprint sensor with optional NFC (source code, etc.)

Chhavi is a tiny, wireless, touch capacitive fingerprint sensor with high-end security features, support for ultra-low power operation and optional NFC connectivity. Its open source firmware is fully compatible with the Arduino IDE. Chhavi is powered by ESP32 and features an FPC BM-Lite fingerprint sensor by Fingerprints, giving you and your projects access to the excellent biometric hardware found in many smartphones. Unlike optical fingerprint sensors that are large and power-hungry, this capacitive biometric sensor is small, accurate, and energy-efficient. During our design process, we determined that NFC communication would be a powerful feature for many of the same applications that might require a high-quality fingerprint sensor, but we could not find a major ESP32-driven NFC controller. So we built one into Chhavi as an optional feature. We've also added an optional battery to simplify installation and facilitate mobile deployment. The result is a tiny device with a cutting-edge fingerprint reader, Wi-Fi and Bluetooth capabilities, as well as support for NFC and battery power when needed.

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Hipoink: Small open source e-paper display updated and wirelessly powered via NFC (schematic and source code)

HiPo is a 3.52-inch e-paper display module the size of a business card. Content is uploaded via NFC via a convenient app, no batteries required. The development board can compile different display functions by editing the code.

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650 V 400 A six-cell automotive qualified IGBT module

The HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range.

650 V 200 A six-cell automotive qualified IGBT module

HybridPACK™ 1 is an automotive qualified power module designed for hybrid electric vehicle (HEV) applications in the 20–30kW power range

25W-500W scalable output power Class D audio power amplifier reference design

25W-500W scalable output power Class D audio power amplifier reference design. Using IRS2092 protected digital audio driver

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Discovery board for the ST25TV02KC NFC Forum Type 5 tag IC

EVB-LIV3FL is a complete standalone evaluation platform for Teseo-LIV3FL low power GNSS module ST solution.

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OM5579: Development kit for the PN7150 plug-and-play NFC controller

OM27160: Development kit for the PN7160 plug-and-play NFC controller