company blog about Recycle Broadcom Absolute Encoders Series:Single Turn,Multi Turn

Recycle Broadcom Absolute Encoders Series:Single Turn,Multi Turn

Shenzhen Mingjiada Electronics Co., Ltd. has specialised in the electronic component recycling sector for many years and is a professional provider of inventory management and recycling services within the industry. We purchase genuine, original products, obsolete stock, end-of-line items and idle chips at competitive prices, helping businesses to rapidly clear inventory, recover capital and reduce warehousing and management costs.

Core Advantages of Our Recycling Services

Comprehensive purchasing: No minimum quantity required; we provide quotes for both small samples and full trays;

Efficient Cash Settlement: Initial online valuation based on images; for large volumes, we can arrange on-site inspection; once confirmed, payment is settled promptly;

Suitable for Various Sources: We accept factory dead stock, project end-of-line stock, inventory clearance, and brand-new, unused components;

Standardised Material Handling: Recycled materials are circulated in compliance with regulations; we have established comprehensive connections with component recycling channels, helping businesses revitalise idle assets and free up warehouse space.

Transaction Process

Submit Inventory List: Compile chip details (model, quantity, batch, package type, condition, packaging) and send via WeChat, email or telephone;

Accurate Quotation: Our assessment team will swiftly verify parameters against market conditions and issue a formal quotation;

Confirm Transaction: Upon mutual agreement, sign a recycling agreement and arrange delivery method (collection or courier);

Delivery and Payment: Upon on-site inspection or receipt of goods, settlement is processed immediately, ensuring rapid payment.

I. Broadcom Single-Turn Absolute Encoder Series

The core operating principle of single-turn absolute encoders is to achieve unique positional encoding and positioning within a 360° single-turn rotation range. They retain the current single-turn angular position after power loss and do not require re-zeroing upon power-up. They are primarily used in motion control scenarios where monitoring the number of rotations is unnecessary and only precise angular positioning is required. Boton’s single-turn encoders feature four key characteristics: miniaturisation, high resolution, programmability, and calibration-free, easy integration. The range covers micro, compact and high-precision multi-position models, making them suitable for lightweight precision control applications.

1. Core Technology and General Features

The entire range of Boton single-turn absolute encoders employs a purely magnetic sensing design, with no optical lenses or mechanical wear components, significantly reducing equipment failure rates and extending service life. The core general advantages are significant: firstly, resolution is flexibly adjustable, supporting a wide range of programmable configurations from 10-bit to 32-bit, enabling ultra-high-precision angular sampling to effectively optimise equipment speed ripple control; secondly, response speed is excellent, with some models supporting high-speed operation of up to 12,000 RPM, making them suitable for high-speed servo applications; Thirdly, they offer strong environmental resilience, with an operating temperature range of -40°C to 105°C, as well as dust and moisture resistance and immunity to vibration interference, making them suitable for harsh industrial environments; fourthly, they feature high integration, with built-in SSI, RS485, ABI/UVW and other types of universal communication and signal outputs, supporting one-button automatic calibration, which significantly reduces equipment integration and commissioning costs.

2. Mainstream Core Models and Specifications

Broadcom’s single-turn product range is comprehensive, specifically tailored to meet diverse requirements for size, accuracy and interfaces. The core models are as follows:

- AR25 Series: A miniaturised single-turn encoder ASIC solution designed specifically for confined spaces. It supports programmable resolutions ranging from 15-bit to 25-bit, accommodates compact 30mm-class encoder structures, and integrates ABI/UVW incremental signal outputs. With extremely low power consumption, it is widely used in micro-servo motors, precision smart home devices, and small automation modules.

- AR55 Series: High-performance programmable single-turn encoders with a maximum single-turn resolution of 32 bits. They support dual outputs of differential sine/cosine analogue signals and digital incremental signals. The CPR parameter can be customised across a wide range from 1 to 2²⁶. Equipped with proprietary local automatic calibration technology, calibration can be completed without a full rotation, making them suitable for high-end precision machine tools and high-precision inspection equipment.

- AS35-M23S Series: A compact, industrial-grade single-turn encoder featuring an ultra-slim body with an outer diameter of just 35 mm and a height of 16.5 mm. It offers a high single-turn resolution of 23 bits, supports high-speed 1 MHz SSI and RS485 communication, and operates at speeds of up to 12,000 RPM. Compliant with RoHS environmental standards, it is the preferred general-purpose model for industrial servo motors and small to medium-sized automation equipment.

- AEAT-9988 Series: A general-purpose, programmable single-turn encoder with a programmable resolution range of 16-bit to 23-bit. It supports a wide-range CPR incremental output (1–65,536) and UVW reversal angle output, with an operating temperature range of -40°C to 125°C. Offering excellent high-temperature resistance, it is suitable for high-temperature operating environments such as automotive automation equipment and outdoor industrial machinery.

3. Typical Application Scenarios

Boton’s single-turn absolute encoders are designed for angle positioning, high-speed speed control and precise single-stroke control applications. They are primarily used in small and medium-sized servo motors, precision machine tool spindles, industrial robotic joints, packaging automation equipment, textile machinery and automotive precision control components – i.e. equipment that does not require cumulative rotation count but only precise angle and speed positioning.

II. Broadcom Multi-turn Absolute Encoder Series

Building upon the angular positioning capabilities of single-turn encoders, multi-turn absolute encoders can precisely record the number of continuous revolutions of the equipment, enabling absolute position positioning over a wide range and long travel. They retain complete angle and revolution data even after a power failure, allowing the precise position to be read directly upon power-up without the need for zero-return calibration. Boton is the industry leader in battery-free multi-turn encoder technology. By eliminating the drawbacks of traditional gear counting and battery backup solutions, and utilising patented Energy Harvesting (EHMT) technology, we have developed maintenance-free, long-life, and highly stable multi-turn encoder products, completely resolving the pain points associated with traditional multi-turn devices, such as wear, noise, and the need for regular battery replacement.

1. Core Technology Evolution and Advantages

Currently, multi-turn encoders in the industry are primarily categorised into three types: mechanical gear-driven, battery-backed, and energy-harvesting. Broadcom has completed a comprehensive technological upgrade, covering two mainstream high-end solutions:

- Battery-backed multi-turn solution: Represented by the 35AT-4Bxx16-9G series, this solution employs a gearless counting architecture, completely eliminating the mechanical wear and operational noise associated with traditional gear structures. It features battery backup for storing multi-turn data and supports 17-bit/23-bit single-turn resolution plus 16-bit multi-turn counting. With a compact design—an outer diameter of 37 mm and a mounting height of just 29 mm—it offers excellent value for money and is suitable for standard industrial multi-turn control applications.

- Patented energy-harvesting battery-free multi-turn solution: Broadcom’s core flagship technology utilises the self-generating effect of Wiegand lines to harvest the rotational kinetic energy of the equipment. Without the need for external batteries or gear mechanisms, it independently performs multi-turn counting and data storage, truly achieving maintenance-free operation, zero wear and tear, and an exceptionally long service life. This reduces long-term operational and maintenance costs at the source, making it the preferred solution for high-end industrial applications.

2. Mainstream Core Models and Specifications

The Broadcom multi-turn series covers the full range of micro, compact and ultra-high-resolution models, with core flagship models offering industry-leading performance:

- AS20-M42M Series: Ultra-micro multi-turn encoders with a miniaturised outer diameter of just 20mm. Featuring a default resolution of 18-bit per revolution plus 24-bit multi-turn resolution, they offer outstanding total resolution. Utilising energy-harvesting self-powering technology, they are battery-free and maintenance-free, specifically designed for micro-precision robots, micro-servo modules and small intelligent equipment, maximising space savings during installation.

- AS33-M50M Series: Ultra-high-resolution industrial-grade multi-turn encoders, featuring an 18-bit single-turn + 32-bit multi-turn configuration with a total resolution of up to 50 bits and industry-leading accuracy. With an outer diameter of 33 mm and a maximum height of 20 mm, they boast an ultra-thin, compact design. They support SSI and bidirectional communication protocols, whilst their magnetic sensing technology offers strong resistance to contamination, making them suitable for harsh production environments such as those with dust or oil.

- AS38-H39E/35AT Series: General-purpose heavy-duty multi-turn encoders with an ultra-high total resolution of 39 bits. Featuring a gearless, wear-free structure, they support high-speed RS485 half-duplex communication. With fast response times and smooth speed control, they effectively reduce rotational speed fluctuations during operation, making them suitable for high-intensity applications such as heavy-duty industrial automation, heavy machinery and intelligent warehousing equipment.

3. Typical Application Scenarios

Broadcom multi-turn absolute encoders specialise in long travel, multi-turn continuous positioning and high-precision global position feedback. They are widely used in high-end industrial scenarios requiring cumulative rotation count, long-distance precision positioning and 24-hour continuous operation, such as industrial robots, gantry machine tools, automated storage and retrieval systems, lifting machinery, wind power equipment, high-end servo control systems and smart production lines.