Intelligent lighting controller based on ambient light and time

This reference design explains how to design an intelligent lighting controller that senses and measures the ambient light level with an ambient light sensor (ALS). Equipped with a real-time clock (RTC), the controller also knows when to turn lighting on or off at specified times. The system presented in this document can be used to control all luminaires that are mains-supply operated. Controller software is also provided in hex format.

LFRD002: Wireless automatic meter reading reference design

This reference design provides a complete demonstration platform for using industrial/scientific/medical radio frequency (ISM-RF) products in a wireless automatic meter reading (AMR) application. This document includes the hardware, firmware, and system structure requirements for implementing an AMR design.

LFRD003: Automatic water meter reading (AMR) reference design

This reference design provides a complete demonstration platform for using industrial/scientific/medical radio frequency (ISM-RF) products in an automatic meter reading (AMR) application. This document includes the hardware, firmware, and system structure requirements for implementing an AMR design that demonstrates operation with a physical water meter.

Temperature-based heating system designed for automotive engine preheaters

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.

LFRD014: Tubular Motor Receiver Reference Design

This reference design provides a complete demonstration platform for using an industrial/scientific/medical radio frequency (ISM-RF) receiver in a tube motor remote-control application. System structure, BOM, schematics, layout, and test results are provided.

LFRD004: MAX7032 Transceiver Reference Design

This reference design provides a complete demonstration platform for using industrial/scientific/medical radio frequency (ISM-RF) products in a 2-way remote control (RC) application. This document includes the hardware, firmware, and system structure requirements for implementing a simple 2-way RC design.

Kintex-7 series power module

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.

Powering the Zynq Evaluation and Development Board (ZedBoard)

This reference design explains how to power the Xilinx Zynq Extensible Processing Platform (EPP) and peripheral ICs using Maxim's power-supply solutions.

LFRD001: MAX1472/MAX1473/MAXQ610 Remote Keyless Entry Reference Design

This reference design provides a complete demonstration platform for using industrial/scientific/medical (ISM) radio frequency (RF) products in a remote keyless entry (RKE) application. It discusses package size, data rate, transmit and receive frequency, component value calculation and selection, layout considerations, and firmware operation. Development steps, system structure, example code, and test results are also provided.

OCEANSIDE (MAXREFDES9#): 3.3V to 15V input, ±15V (±12V) output, isolated power supply

This document details the Oceanside (MAXREFDES9#) subsystem reference design, a 3.3V to 15V input, ±15V (±12V) output, isolated power supply. The Oceanside design includes a high-efficiency step-up controller, a 36V H-bridge transformer driver for isolated supplies, a wide input range, and a pair of adjustable output low dropout (LDO) linear regulator. Test results and hardware files are included.

Schematic PCB

Create a 1-Wire® Master with Xilinx PicoBlaze

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.

Lakewood (MAXREFDES7#): 3.3V input, ±12V (±15V) output isolated power supply

This document details the Lakewood (MAXREFDES7#) subsystem reference design, a 3.3V input, ±12V (±15V) output, isolated power supply. The Lakewood reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and two wide input range and adjustable output low dropout (LDO) linear regulators. Test results and hardware files are included.

Schematic PCB

Isolated power supply with 3.3V input and 12V (15V) output

This document details the Riverside (MAXREFDES8#) subsystem reference design, a 3.3V input, 12V (15V) output isolated power supply. The Riverside reference design includes a 3W primary-side transformer H-bridge driver for isolated supplies, and one wide input range and adjustable output low dropout (LDO) linear regulator. Test results and hardware files are included.

Schematic PCB

SANTA FE (MAXREFDES5#): 16-bit, high-precision, multiple-input, isolated analog front end (AFE)

This document explains how the Santa Fe (MAXREFDES5#) subsystem reference design meets the higher resolution, higher voltage, and isolation needs of industrial control and industrial automation applications. Hardware and firmware design files as well as FFTs and histograms from lab measurements are provided.

Schematic PCB

Level Control and Delivery Systems Using Compensated Silicon Pressure Sensors and Precision Delta-Sigma ADCs, Part 2

This reference design describes a cost-effective, low-power liquid-level measurement data acquisition system (DAS) that use a compensated silicon pressure sensor and a high-precision delta-sigma ADC. The document explains how to implement a design that measures and distributes most industrial liquids using a noncontact measurement approach. It also suggests system algorithms, provides noise analysis, and describes calibration ideas to improve system performance while reducing complexity and cost.

Vital Signs Monitoring Suit (Fit 1)

The "Fit" vital signs monitoring shirt allows medical professionals and fitness enthusiasts to easily obtain frequent and less costly vital sign measurements. The highly integrated shirt incorporates a 3-lead electrocardiogram (ECG), and also measures body temperature and motion. All diagnostic tools are packaged in a shirt that is comfortable to wear.

Corona (MAXREFDES12#): Isolated, eight-channel, industrial digital input level translator/serializer

This document explains how the Corona (MAXREFDES12#) subsystem reference design provides a compact and simple isolated digital input interface for industrial control and automation applications. Hardware and firmware design files are provided.

Schematic PCB

FREMONT (MAXREFDES6#): 16-bit, high-precision, 0 to 100mV input, isolated analog front end (AFE)

The Fremont (MAXREFDES6#) subsystem reference design meets the high-resolution needs of low-voltage output sensor applications. Boards for purchase, hardware and firmware design files, and FFTs and histograms from lab measurements provide complete system information for rapid prototyping and development.

Schematic PCB

CARMEL (MAXREFDES18#): High-precision analog current/voltage output

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.

Schematic PCB

MONTEREY (MAXREFDES15#): Ultra-low power, high accuracy, 4–20mA, 2-wire current loop sensor

The Monterey (MAXREFDES15#) subsystem reference design is a high-accuracy industrial loop powered sensor transmitter that connects to any standard PT1000 resistance sensor and converts the linearized temperature to a 4–20mA current signal, which is immune to noise and remains constant over long distances.

Schematic PCB