Motor current detection system solution based on ADSP-CM408 and AD7403

For small and medium power motor applications, the EPSH-MPC development platform provides current sampling of the isolated analog-to-digital converter AD7403. The external current loop is converted into a corresponding shunt voltage through a shunt resistor and input to the voltage test terminal of the AD7403. The AD7403 outputs according to the clock signal given by CM408F. ADC bit stream, CM408F enables the built-in SINC filter on the input bit stream to calculate the corresponding 16-bit ADC value, and stores the data into the corresponding ring queue through DMA. The host computer software can use the UART-USB port Or obtain the display of data samples through the RS485 port, you can intuitively see the acquisition effect of AD7403, and the collected data can be stored in an excel table to facilitate corresponding analysis of the data.

Schematic PCB

WT32 development kit design information

WT32 development kit design information

Schematic PCB

ZigBee Contact Sensor Reference Design with EM3587, Si7053 and PCB Antenna

ZigBee Contact Sensor Reference Design with EM3587, Si7053 and PCB Antenna

Schematic PCB

ETRX2-PA and ETRX2HR-PA ZigBee® Module Product Brochure

This document describes the Telegesis ETRX2-PA ZigBee module, which is designed to be integrated into another device and provide a fast, simple and low-cost wireless mesh network interface. Unless explicitly stated, the content also applies to ETRX2HR-PA modules that use a Hirose U.FL coaxial antenna connector in place of the onboard ceramic antenna. Users cannot convert ETRX2-PA to ETRX2HR-PA or vice versa. The Telegesis ETRX2-PA module is based on the Ember ZigBee platform, which consists of the single-chip EM250 and the EmberZNet mesh stack compliant with the ZigBee PRO standard. Integrating the simple-to-use AT style command interface and advanced hardware design, a wide range of applications can be easily implemented. Configurable functionality often allows the use of the ETRX2-PA wireless mesh module without the need for an additional host microcontroller, saving even more integration time and cost. In addition to the Telegesis AT command set, the ETRX2-PA can be used with custom built firmware or the Ember EZSP based UART protocol interface... No RF experience or expertise is required to add this powerful wireless networking capability to our of products. ETRX2-PA offers fast integration opportunities and the shortest possible time for marketing your products.

Schematic PCB

EM35x using Skyworks SE2432L

Schematic PCB

ZigBee Reference Design for EM35x and RF6525

Schematic PCB

EM34X Voice Remote Control Reference Design

Schematic PCB

EM341 RF4CE Zigbee low-cost remote control reference design

Schematic PCB

BLE113 development kit design information

BLE113 is a Bluetooth smart module targeting small, low-power sensors and accessories. It integrates all the functionality required for Bluetooth Smart applications, including Bluetooth radio, software stack and GATT-based profiles. The BLE113 Bluetooth Smart module can also host end-user applications, meaning no external microcontroller is required in devices with size or price constraints. The module features flexible hardware interfaces to connect different peripherals and sensors, and can be powered directly from a standard 3V coin cell or a pair of AAA batteries. In its lowest power sleep mode, it consumes only 500 nA and will wake up in a few hundred microseconds.

Schematic PCB

BLE113 Development Kit Schematics

Schematic PCB

WF121 Wi-Fi Development Kit

The WF121 Development Kit provides the right environment for developing and prototyping embedded Wi-Fi® applications using the WF121 Wi-Fi module. The development kit contains a ready-to-use hardware platform and a Wi-Fi software development kit that includes all necessary documentation and PC tools.

Schematic PCB

NB-IoT Internet of Things Development Platform

This platform integrates NB-IoT low-power networking capabilities and uses the powerful computing power of NuMicro® M487 to collect sensing data for analysis, obtain streamlined results, and then transmit them to the cloud in NB-IoT mode. It can also be used as a lightweight Gateway, transmits data between Ethernet, Wi-Fi and NB-IoT.

RF transceiver reference design tuned to 915 MHz using wireless MCU AXM0F243

RF transceiver reference design tuned to 868 MHz using wireless MCU AXM0F243

FL7740 and FL7760 with Bluetooth wireless dimming control (25 W)

Direct AC LED driver with Bluetooth wireless dimming control

AT86RF231 PCB Antenna Diversity Reference Design

This reference design demonstrates a full-function network node with the AT86RF231 radio transceiver, which is capable of hosting a MAC layer implementation. Two ceramic chip antennas increase the link budget in a typical indoor scenario with multi-path fading effects.

Schematic PCB

REP017: Dual-band three-mode IC suitable for both CDMA and AMPS with an intermediate frequency of 183MHz

Reference design (RD) is a dual-band, triple-mode CDMA front-end to a receiver whose frequency plan requires digital and AMPS analog IFs to be at 183.6MHz. RD uses the MAX2338, a low-noise amplifier (LNA) with mixer, that is useful for TDMA, GSM, EDGE, and WCDMA applications.

Schematic PCB

REP003: Cellular Front-End ICs in Automotive Applications

This reference design (RD) is for a dual-band CDMA front-end IC for use in automotive applications. The application circuit uses the MAX2323 low-noise amplifier (LNA) with mixer at temperatures up to 110°C. The device is also useful for TDMA, GSM, EDGE, and WCDMA applications. Schematics, bill of materials (BOM), and performance measurements are shown.

Schematic PCB

REP005: Dual-band CDMA tuning front-end using inexpensive 85MHz IF SAW devices

This reference design (RD) is for a dual-band, triple-mode CDMA front-end IC tuned for use with IF SAW filters. The RD modifies the FM/cellular/PCS mixers to a common 85MHz IF. The design uses a low -noise amplifier (LNA) with mixer, the MAX2320, that is also useful for TDMA, GSM, and EDGE applications. Schematics and bill of materials are shown.

Schematic PCB