Efficient, low-cost flyback converter without optocoupler feedback

This reference design is for a highly efficient, flyback, 12V, Class 3 powered device (PD). The design features the MAX5969B as its controller. The design also uses the MAX5974A, which controls current-mode PWM converters and provides frequency foldback for PoE applications. Using these devices, this reference design is IEEE® 802.3af/at compliant and is a high-performance, compact, and cost efficient solution for a Class 3 PD. The design can also be customized to 12V/2A Class 4 PD.

Single LNB power and control IC based on LNBH25L DiSEqC 1.x compatible

Single-channel LNB power supply and control IC based on LNBH25L and compliant with DiSEqC 1.x standard

Schematic PCB

Long string LED boost driver (using aluminum electrolytic capacitors)

The long strings of LEDs commonly found in TV and display backlighting, street lights, and parking garage lights require a current driver capable of producing high voltages. This reference design provides such a driver using the MAX16834, and demonstrates how very-high dimming ratios can be obtained.

Reference design to ensure dynamic output voltage of printhead power supply

This article describes some important design parameters for managing power in a printer. The reference design shows how to use a MAX15005 power-supply controller as a SEPIC circuit to obtain a high-variable output voltage for a print-head power supply. The circuit schematics , bill of materials (BOM), test measurements, and results are provided.

KITPPFGMEVME: PF series programmer

NXPThe PF Series Programmer is a development tool designed to allow users to easily configure PF Series devices.

MAXREFDES1050: -15V/1.5A buck-boost DC-DC converter using buck controller MAX17504

The MAXREFDES1050 is a positive input, negative output power supply that delivers up to 1.5A at -15V from a 18V to 30V supply voltage. It is designed for industrial control equipment that uses analog components like amplifiers and multiplexers that operate on negative supply voltage.

KIT33814AEEVBE: Evaluation Kit - 33814, Twin Cylinder Small Engine Control

The KIT33814AEEVBE is an easy-to-use circuit board that allows you to exercise functions of the NXP MC33814 two cylinder small engine control IC.

Schematic PCB

OM13085: LPCXpresso board for LPC1769 with CMSIS DAP hardware debugger

LPCXpresso board for LPC1769 with CMSIS DAP hardware debugger

Schematic PCB

MAX5073 Dual Buck Converter Reference Design Operating at 2MHz Switching Frequency

The MAX5073 is a dual converter capable of operating as a buck or boost converter. As a dual buck converter, this device can deliver up to 2A and 1A of output current. The reference design focuses on the MAX5073 operating as a buck converter with a switching frequency of 2MHz, which allows the use of smaller passive components and keeps it out of the AM band for automotive applications.

KIT33816FRDMEVM: Evaluation Kit - 33816, Freedom Board KL25Z, Injector

LNB power supply evaluation board based on LNBH26LS

LNB power supply evaluation board based on LNBH26LS

Schematic PCB

MAXREFDES1181: -5V/150mA, negative output power supply using MAX17501

The MAXREFDES1181 is centered around the MAX17501 ultra small, high-efficiency, high-voltage, synchronous stepdown DC-DC converter with integrated MOSFETs.

Use DS3882 CCFL controller to drive the common circuit of two lights

This application note describes a backlight LCD application in which two adjacent CCFL lamps share a common, low-voltage side lamp connection. This design is found in automotive, industrial, and avionic applications. The article describes how a DS3882 CCFL controller can be used to drive the two CCFL lamps that share a common return.

STM32 based NAND flash drive demonstration board (with TFT MB785/P)

STM32-based NAND Flash driver demonstration board (with TFT MB785/P)

Schematic PCB

TEA1721ADB1061: TEA1721 Isolated Universal Mains Flyback Converter Demo Board

FRDM-17531EP-EVB: Freedom expansion board - MPC17531A, dual H-bridge, stepper motor driver, 2.0V-8.6V, 0.7A

OM13099: CAN-FD dual transceiver Shield expansion board

OM13099 CAN-FD Shield expansion board for LPCXpresso54628 and LPCXpresso54608 evaluation boards

Designing a non-isolated flyback LED driver

Smart Temperature Transmitter Reference Design

The smart temperature transmitter evaluation kit has the characteristics of high accuracy, signal isolation, LCD display, support for HART protocol, loop power supply, interface protection, etc. This platform is mainly based on ADI's multi-channel ADC with self-checking function and EPSON's Ultra-low power consumption 16-bit MCU implementation. The main IC of this design uses ADC7124-4, which integrates a 24-bit Σ-ΔADC, buffer and PGA (programmable gain amplifier). The transmitter can convert the temperature (standard thermal resistance or thermocouple) signal into a 4-20mA signal, which is output by the power supply loop.

Schematic PCB

MAXREFDES1019: Multi-Output DC-DC Converter Using Buck Regulator

This document describes a circuit that uses three MAX17541G buck converters and one MAX17504 step-down DC-DC converter. The circuit is arranged so that each buck converter uses the same input with four separate outputs. Each output has a different power specification. The MAX17541G regulator and features are given first, followed by the MAX17504 features.