MAXREFDES1177: PoE-Powered, 12V/600mA Optocouplerless Flyback DC-DC Converter Using the MAX17690 and MAX5969B

Power over Ethernet (PoE) is a technology that allows network cables to deliver power to a powered device (PD) through power-sourcing equipment (PSE) or midspan, and has many advantages over traditional methods of delivering power.

3D printer controller (12V)

This design is a complete system for controlling a single extruder based 3-axis 3D printer. The system is managed by the MSP430F5529 LaunchPad and utilizes the DRV8846 for precision stepper motor control. The CSD18534Q5A is used as a low-side switch for warm bed heaters, extruder heaters, and cooling fans. The DRV5033 Hall sensor acts as a non-contact limit switch.

Schematic PCB

LDO Regulator TCR15AGADJ Application & Circuit

Schematic PCB

15W AutoSAR Wireless Charging Transmitter

The NXP 15W multi-coil automotive transmitter solution is designed for in-vehicle wireless charging.

SEC-6D6KW-OBC-SIC-GEVB: 6.6kW OBC silicon carbide model

MAXREFDES1163: ±15V/100mA or ±12V/50mA output, ISO-BUCK DC-DC power module

The MAX17681/MAX17681A is a high-voltage, highefficiency, iso-buck DC-DC converter designed to provide isolated power up to 5W. The device operates over a wide 4.5V to 42V input and uses primary-side feedback to regulate the output voltage .

Schematic PCB

Audio preprocessing system reference design for speech-based applications

This reference design uses multiple microphones, a beamforming algorithm, and other processes to extract clear speech and audio amidst noise and other clutter.  The rapid increase in applications that are used in noise-prone environments for voice activated digital assitants creates demand for systems that extract clear voice from noisy environments.  The reference design uses a microphone array and a sophisticated signal processing to extract clear audio from noisy environments.

Schematic PCB

Single-phase electronic electricity meter for single-chip measurements

This design uses the MSP430F6736 device to implement a highly integrated single-chip energy metering (meter) solution. Hardware and software design files are provided to calculate various parameters of single-phase energy metering such as RMS current and voltage, active and reactive power and charge, power factor and frequency.

Schematic PCB

RDR-813 - 27W USB PD 3.0 with 3.3 V-11 V PPS power supply, using InnoSwitch3-Pro and VIA Labs VP302 controller (single board design)

27 W USB PD 3.0 with PPS charger (5 V/3 A; 9 V/3 A; 3.3 V-11 V PPS outputs) using InnoSwitch3-Pro (INN3366C-H301) and VIA Labs VP302 USB PD controller, single-board design

Schematic PCB

KIT33812EKEVBE: Evaluation Kit - 33812, Ignition and Injection Driver

This EVK supports NXPMC33812. MC33812 is an engine control analog power IC suitable for motorcycle and single/double cylinder small engine control applications.

Electronic locks

MAXREFDES1161: Small, high-accuracy, 2-wire, 4mmA to 20mA current loop transmitter

The MAXREFDES1161 is a small form factor, high accuracy, 2-wire 4mA to 20mA transmitter which integrates all functional and protection blocks in a small 1.0in x 0.6in dual-row header footprint that is compatible with breadboards and off-the-shelf peripheral expansion boards.

Schematic PCB

75W Continuous Conduction Mode (CCM) Buck LED Driver

MAXREFDES1174: -24V/150mA, negative output supply, using MAX17501

The MAXREFDES1174 is centered around the MAX17501 ultra small, high-efficiency, high-voltage, synchronous stepdown DC-DC converter with integrated MOSFETs. This design provides a -24V output and up to 150mA of load current with an input voltage range of 22V to 30V. Unlike a traditional design, this reference design is configured to work in a buck-boost topology to produce negative output voltage from positive input voltage.

Power supply solution for Terasic DE2-115 (Cyclone IV)

The PMP10581 reference design provides all the power rails required to power Altera's Cyclone® IV E FPGA. The DE2-115 was developed by Terasic and you can purchase this board through the Terasic website.

Schematic PCB

MAXREFDES1220: Bootstrap, 5V/2A, step-up DC-DC converter with 90% efficiency, using MAX16990

This reference design boosts a single-cell battery voltage input to a 10W output using the MAX16990 controller in bootstrapped mode.

Schematic PCB

Mains powered, 24V, 30W BLDC motor driver with efficient, high power factor power supply

To meet energy efficiency requirements, ceiling fans and ventilation fans will move from simple AC induction motors to brushless DC motors (BLDC). BLDC motors require AC-DC conversion with high efficiency and high power factor when operating on AC power. It also requires the use of highly efficient controlled inverters for low-noise operation. Reference design TIDA-00652 uses a single-stage power supply to convert an AC power input to a low-voltage DC output, helping meet the challenges of higher efficiency and power factor in a simpler way. It also incorporates a fully integrated and properly protected single-chip sensorless sinusoidal brushless motor controller for low-noise operation.

Schematic PCB

RDR-805 - 100 W USB PD 3.0, 3.3 V-21 V PPS power supply based on InnoSwitch3-Pro and VIA Labs VP302 controller

Schematic PCB

Smoke detector schematic and PCB source files and BOM

Smoke sensor design includes principle circuit design, PCB and BOM list

Schematic PCB

MAXREFDES1132: 2W DC-DC flyback converter using MAX17596

The MAX17596 is a peak-current-mode controller for designing wide input-voltage flyback regulators. The device offers input thresholds suitable for low-voltage DC-DC applications (4.5V to 36V) and contains a built-in gate driver for an external n-channel MOSFET.