When people want portable music, they usually rely on battery-powered audio devices. With a bit of engineering blood (or curiosity) running in your veins, it is not difficult to build a wireless Bluetooth® stereo audio system that can be controlled with any device that has a Bluetooth connection and a music player.
This reference design describes how to design hardware for a temperature-based heating system for a vehicle that has an engine preheater installed, based on ambient temperature and a preordained engine start time. This system can also be used for other purposes, such as turning on a storage heater if the ambient temperature falls below a preordained value.
This reference design enables a complete power-supply solution for powering Xilinx® Kintex®-7 series field-programmable gate array (FPGA) using Maxim's power-supply solutions.
This reference design explains how to power the Xilinx Zynq Extensible Processing Platform (EPP) and peripheral ICs using Maxim's power-supply solutions.
Designers who must interface 1-Wire® temperature sensors with Xilinx field-programmable gate arrays (FPGAs) can use this reference design to drive a DS28EA00 1-Wire slave device. The downloadable software mentioned in this document can also be used as a starting point to connect other 1-Wire slave devices. The system implements a 1-Wire master connected to a UART and outputs temperature to a PC from the DS28EA00 temperature sensor. In addition, high/low alarm outputs are displayed from the DS28EA00 PIO pins using LEDs.
The Carmel (MAXREFDES18#) subsystem reference design provides a high-accuracy analog current/voltage output in a compact, galvanically isolated form factor. This design uniquely fits programmable logic controllers (PLC), distributed control systems (DCS), and other industrial applications . Hardware and firmware design files and lab measurements are provided for rapid prototyping and development. The board is also available for purchase.
The Palo Verde reference design (MAXREFDES33#) is a high-efficiency, high-voltage, synchronous step-down DC-DC converter with integrated MOSFETs operating over a 4.5V to 60V input voltage range and delivering output current up to 300mA at 3.3V . Test results and hardware files provide complete documentation for designs. The board is also available for purchase.
Pasadena (MAXREFDES31#) is a highly efficient, flyback, 3.3V and 5V Class 4 powered device (PD) with a 40V to 57V auxiliary input. The design features the MAX5969B as the controller. The MAX5974A controls current-mode PWM converters and provides frequency foldback for both the auxiliary input and power-over-Ethernet (PoE) applications. The design is a high-performance, compact, IEEE® 802.3af/at compliant, cost-efficient solution for a PD with power level up to Class 4. The design can also support the auxiliary-input to provide approximately 21W output power.
Maxim's MAXREFDES27# reference design is a tiny, low-power IO-Link ® optical proximity sensor compliant with IEC 61131-9. It contains an infrared (IR) receiver, matching IR LED driver, IO-Link transceiver, and efficient step-down converter. The entire design fits on an 8.2mm x 31.5mm printed circuit (PC) board.
Maxim's Power Amplifier Biasing (MAXREFDES39#) features a PA Bias circuit with the flexible Programmable Mixed Signal I/O (PIXI™) product, the MAX11300. The 2-stage amplifier design biases a 15W, LDMOS PA implemented with unprecedented simplicity, and is capable of biasing many existing PAs. Design files are available and boards are available for purchase.
The MAXREFDES71# subsystem reference design has two high-speed and high-accuracy analog inputs and analog outputs for industrial motion control applications. Hardware, firmware, design files, and lab measurements provide complete system information for rapid prototyping and development.
Maxim's MAXREFDES36# reference design is an IO-Link, low-power, 16-channel digital input hub compliant with IEC 61131-9. It contains two octal digital input serializers, an IO-Link transceiver and efficient step-down converter. The entire design fits in a standard DIN rail printed circuit board (PCB) holder.
The MAXREFDES48# reference design is a high-efficiency, high-precision, isolated DC-DC forward converter with an active clamp, current-mode PWM controller. The converter accepts 18V to 36V DC input and delivers output current up to 3.5A at 12V . Test results and hardware files provide complete documentation for the design. The board is also available for purchase.
The MAXREFDES41# reference design is a high-efficiency, high-precision, isolated DC-DC forward converter with an active clamp, current-mode PWM controller. The converter accepts 18V to 36V DC input and delivers output current up to 3.5A at 12V . Test results and hardware files provide complete documentation for the design. The board is also available for purchase.
This reference design provides a power-supply circuit with an input voltage of 3.3V, an output voltage of 1.8V, and an output current of 1A using the MAX8869 low-dropout linear regulator. The circuit was developed to power a MGTVCCAUX rail on a Xilinx® Kintex® Ultrascale™ FPGA. Included in this reference design are a schematic and a bill of materials.
This reference design provides a power-supply circuit with an input voltage of 10.8V to 13.2V, an output voltage of 1.80V, and an output current of 2A using the MAX15303 InTune™ Point-of-Load (PoL) Controller. The circuit was developed to power a VCC1V8 rail on a Xilinx® Kintex® Ultrascale™ FPGA. Included in this reference design are a schematic, applications information, and a bill of materials.
Evaluation kits (EV kits) are often the best tool for evaluating the applicability of a particular DC-DC converter for a specific application. Simulation, though never as accurate as the real hardware, is much faster and can be very effective for initial evaluations. Maxim Integrated’s MAX17504EVKITA is a 3.3V output EV kit for the MAX17504 member of the Himalaya family of high-voltage, synchronous step-down converters. The MAXIM_EESIM_MAX17504EVKITA.wxsch is a circuit file that enables simulation of this EV kit using the free EE-Sim SE simulation tool, downloadable from the Maxim Integrated website. EE-Sim SE is a variation of the commercial SIMPLIS/SIMetrix tool, which can also be used with this file.
MAXREFDES89# is an mbed®-compatible shield for the rapid development of brushed DC motor applications. The shield contains four MAX14871 full-bridge DC motor drivers for driving up to 4 motors. A MAX17501 DC-DC converter allows the system to operate from a single 7 to 36VDC power supply. Four MAX4704 4:1 multiplexers permit setting the current regulation mode of the MAX14871, while two MAX5387 digital potentiometers provide the ability to set the motor current limit. A MAX7300 GPIO expander supports interfacing each motor driver circuit to the mbed enabled microcontroller platform.
This document details the MAXREFDES112# subsystem reference design, a 17V to 36V input, 12V output, flyback isolated power supply capable of 10W. Design files and test results are included. Hardware is available for purchase.