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Technology

Technology

Industry-leading technology is what sets us apart from the competition

With an expanding portfolio of patented technology, Dialog leverages years of research and development in digital, mixed-signal and analog circuits to bring to market innovative power management products. 

Diversifying our product portfolio

Dialog is successfully diversifying its product portfolio and customer base, focusing on key adjacencies. This includes:

PrimAccurate™

Dialog's portfolio of AC/DC converters all take advantage of the patented PrimAccurate™ control technology. This technology uses proprietary digital algorithms that perform real-time waveform analysis to monitor the output voltage and current through an auxiliary winding on the main transformer instead of using direct feedback from the output voltage (isolated or non-isolated). Cycle-by-cycle analysis through Dialog's digital technology allows for tight load and line regulation to input and output changes and full protection without costly additional components such as power sense resistors. By operating with a digital control block, the PrimAccurate™ devices can also operate in multiple modes of operation without the need for complex analog circuitry. Some of the AC/DC converters made by Dialog use combinations of Pulse Width Modulation (PWM) and Pulse Frequency Modulation (PFM), flattening out the efficiency curve, offering high efficiency across a broader load range than equivalent analog circuits. In circuits where this technology is not needed, such as solid state lighting, the the converters use quasi-resonant control to optimize efficiency for heavy loads. The fully digital control also allows for compensation to be done in the time domain instead of the frequency domain, removing the need for external compensation components, easing design and reducing time-to-market for developers.

Diagrams

Auxiliary Voltage Waveform Used by Digital Control Block to Control Output Voltage
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Typical Breakdown of Multi-Mode Control of AC/DC Converters; PWM, PFM, Deep PWM, and Deep PFM

SmartPulse™ wireless sensor network devices

Dialog’s SmartPulse™ series of wireless sensors, actuators and base station devices enables the easy creation of wireless sensor networks for the home automation, security, healthcare and energy monitoring consumer markets. SmartPulse wireless sensors and actuators are on the SC14SPNODE module for data and voice, which uses the DECT ULE wireless transmission standard and integrates baseband, radio transceiver, power amplifier and antenna in a single package. Applications are defined in software and a range of software stacks can be downloaded from Dialog’s customer portal.

The SmartPulse family also includes a DECT ULE enabled base station device, SC14CVMDECT, with embedded base station software, as a system-in-package.By using the DECT ULE standard the devices enable the development of a wide range of new wireless consumer products that run for up to 10 years on a single AAA battery pack. Furthermore, systems running SmartPulse sensors self-configure with a home’s DECT ULE / DECT enabled hub or internet gateway, allowing connected systems to be managed over the web using a smartphone, laptop or tablet PC.

Smartbond

Bluetooth® low energy is the gateway to personal connectivity and easy access to the cloud. Dialog’s SmartBond™ family is the simplest route to delivering the most power-friendly and flexible Bluetooth low energy connected products to the market.

Highly integrated, SmartBond delivers the smallest, most power efficient Bluetooth low energy solutions available – and enables the lowest system costs. The family includes generic and application-optimized solutions in various pin-compatible memory options, combining design flexibility with easy cost reduction. This is all backed up by our powerful SmartSnippets software tooling and extensive applications support, making it easy for designers to get the most out of their system. Our innovation roadmap ensures designers will have the Bluetooth solutions they need when they need them as markets evolve.

Smartwave

DA8901 Smartwave™ Multi-Touch Integrated Circuit; MTICTM drives a number of infrared Light Emitting Diode (LEDs) in a controlled sequence, injecting light into the cover lens of the display. Using FlatFrog’s patented PSD Touch technology, as users touch the surface, scattered light is detected by multiple infrared receivers connected to DA8901’s detector front end. The resulting signals are amplified and dynamically filtered to remove ambient light before being converted into the digital domain using a high linearity ADC. The data is then subjected to FlatFrog’s PSD Touch algorithms using MTIC’s 3 custom ALUs and ARM micro controller before being communicated via SDIO to a standard external touch
controller IC which provides the touch coordinates to the main PC processor.

Each MTIC can drive 12 LEDs or be configured to control 100s of LEDs in external drive mode. Signals from 12 receivers can be processed in a single chip. Up to 16 MTICs can be used in a single system using a master / slave arrangement enabling a wide range of screen sizes up to 36 inches.

Flickerless™

Dialog's AC/DC converters designed specifically for the Solid State Lighting (SSL) market overcome one of the major issues in designing retrofit luminaires, dimming without potentially harmful flicker.  By implementing Flickerless™ technology in each SSL driver, Dialog offers LED drivers that are compatible with the industry's broadest range of dimmers, while eliminating potentially harmful flicker.

Dialog's patented Flickerless™ technology utilizes a two-stage conversion approach, first detecting the type of dimmer, if any, is present. Once determined which dimmer type is used, then the input voltage is passed through a chopping circuit, which provides the correct impedance to match the dimming circuit and therefore helps to improve the Power Factor of the overall circuit. Besides this, the chopping circuit also provides a voltage without the line frequency component, allowing the AC/DC controller to provide the PWM dimming of the LED driver current based on the dimming percentage demanded by the input dimming circuit. The Dialog family of SSL drivers operate with dimming frequencies between 630Hz to 900Hz, with a dimming range of 1% to 100%. This completely removes the possibility of visible and non-visible flicker on the LED output.

Diagrams

Dialog's Two Stage Approach, Removes Flicker and Improves Power Factor
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Simplified Chopping Circuit Schematics

BroadLED™

Dialog's LED Backlighting products are power management devices for driving large arrays of LEDs in LCD panels for applications such as HDTVs or Public Information Displays. With large LED-backlit displays, the key area of concern is how to cost-effectively provide equal brightness across the full panel and maintain high efficiency.  LED voltage variation can be broad and become expensive when binning is required.  And, with new Energy Star® power consumption standards becoming more and more stringent, burning extra watts to improve brightness matching is no longer possible.

Dialog's patented BroadLED™, Adaptive Switch Mode technology, reduces wasted power by 60%, while maintaining better than 2% channel-to-channel matching, enabling higher integration of drivers and the possibility to implement local dimming for large LCD displays in HDTVs.  This permits the use of loosely binned, low-cost LED arrays. Adaptive Switch Mode works by establishing a constant current through each LED string and then the digital control algorithm calibrates the low dropout driver to account for the voltage applied to the highest voltage LED string, which may be beyond what that individual string requires. The current through the string is increased in order to utilize the applied voltage to its maximum and then the LDO driver is PWM modulated until the average current matches the original programmed current. This way, the extra voltage applied in not wasted in the driver, but actually conserved by PWM'ing each LED channel. This savings, on a channel by channel basis, adds up to an extremely large energy savings, thanks to Dialog's patented technology.

Diagrams

Dialog's Proprietary BroadLED™ Technology - Adaptive Switch Mode Technology

AccuSwitch™

Dialog leverages its proprietary PrimAccurate™ control circuit technology and integrates it with high power transistors in order to create a new range of technology called AccuSwitch™. The integration of the patented digital control circuit, offering high output accuracy and a reduced component count through proprietary primary-side feedback technology, with a high voltage transistor allows for an overall solution that saves valuable real estate in home and industrial electronics. The iW181x family is the first family of products offered by Dialog with AccuSwitch™ technology, with an 800V-rated power bipolar transistor, enabling off-line power supplies with average output power ratings of 5W from a single integrated circuit.

SmarteXite™

Enabling a new generation of highly flexible, programmable LED driver ICs for smart lighting applications. SmarteXite, based on fully configurable logic, is the first LED driver technology to directly and easily support wireless connectivity, light sensor control and allow easy integration into lighting control systems. The iW6401, supports multiple dimming interfaces, including digital dimming via a simple main on/off switch, the new LedotronTM digital dimming protocol and toggle-switch based dimming. All dimming-curves can be memory-configured to enable a highly optimized end-user lighting experience. The integrated digital loadline transmission (DLT) receiver in the iW6401 supports the Ledotron IEC 62756-1 dimming protocol, making it the world’s first single-chip plug-and- play Ledotron solution.

Using a standard I2C digital interface, the iW6401 can serve as a powerful frontend for wireless communication modules like low-energy Bluetooth, Wi-Fi or ZigBee. Additionally, intelligent sensor devices enabling color- or proximity-sensing can be directly connected. When such a peripheral device is used, the integrated power management unit in the iW6401 provides a stable power source, reducing the external component count and cost.

SmartBeat™

SmartBeat is a system integrators solution consisting of pre-engineered firmware and comes with configuration and tuning tools for fast development of USB audio applications like Lync/Skype headsets, headphones and microphone which are Microsoft Lync/Skype and/or USB compliant. While being pre-engineered, the firmware offers full customizability of the MMI, like button and LED responses. A key-tone generator can be configured to add audible feedback to user, like indicating volume up or down and end of range.

On the USB interface standard and custom HID’s are supported, while on the audio front end multiple sample rates, echo cancelation, noise reduction and microphone and speaker equalization give full control over the audio quality in voice and music play back. To enable a fast-time-to-market reference design schematics and Gerbers and a configuration and tuning tools are available.