At present, Bluetooth technology has been widely used in the consumer electronics market such as mobile phones, and will be further developed in the future with the promotion of smart homes, wearable devices and first-generation IOT devices. As an excellent supplier in the IoT space, Silicon Labs is dedicated to a variety of wireless connectivity solutions for WiFi, Bluetooth, ZigBee and Thread technologies, including modules, SoCs and transceivers.
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Encouragingly, Silicon Labs acquired BlueGiga in February and announced on August 17 the industry's first fully integrated, pre-certified Blue Gecko Bluetooth Smart module solution, the BGM111 module. It combines ultra-low-power wireless system-on-chip, security manager and connection management to simplify Bluetooth Smart design and dramatically reduce time-to-market for a wide range of applications. These applications include smartphone accessories, beacons, connectable home devices, health and fitness trackers, personal medical devices, car repairs, industrial sensors, and point-of-sale terminals.
Figure 1 Silicon Labs' first Blue Gecko module BGM111
The BGM111 module has all the features of the Blue Gecko SoC. Among them, the SoC on-chip Bluetooth Smart transceiver can provide up to +8dBm transmit power, up to 40MHz main frequency, and excellent 200m RF transmission distance. The transceiver consumes only 7.5 mA in peak receive mode; in peak transmit mode, it consumes only 8.2 mA at 0 dBm. In addition, the SoC-integrated MCUs feature the ARM® Cortex®-M4 processor, which consumes 59μA/MHz in run mode and 1.7μA in sleep mode, or even as low as 200nA.
As a result, the BGM111 module provides the best energy efficiency for power-sensitive designs, powered by a standard single 3V coin cell battery or two AAA batteries. It also comes with plenty of storage: 256kB of flash and 32kB of RAM; and the SoC has built-in hardware crypto accelerators for future security needs; it has a hardware interface to connect various peripherals and sensors; and it integrates internally An efficient antenna that ensures consistent RF design operation meets the requirements of developers at all levels.
Figure 2 Fully integrated, pre-certified, low power Blue Gecko module BGM111
The Bluegiga Bluetooth 4.1 compliant software stack and profile are pre-installed in the BGM111 module and can be upgraded to Bluetooth 4.2 or higher with the firmware of the chip. Its plug-and-play Bluetooth Smart design has also been pre-certified in key market areas such as North America, Europe and Asia Pacific. In addition, the module has the most efficient development environment in the Bluetooth market. Developers can quickly develop Bluetooth applications with the Bluegiga BGScript scripting language and choose either external host control or a fully stand-alone mode of operation, without the need for an external MCU. When transitioning from module to SoC mass production, it can effectively help developers reduce development costs and ensure compatibility; facilitate the development of various Bluetooth Smart application profiles and examples, and significantly shorten the time-to-market for customers.
In short, the BGM111 module is a fully integrated, pre-certified, low-power Blue Gecko module with the best scripting language, software stack and powerful technical support, enabling developers to implement IoT wireless directly and quickly with minimal development cost. Connect and launch Bluetooth Smart products, especially for small companies.
The main circuit of the equipment is the full bridge controlled circuit and the trigger circuit is the programmable integrated circuit. The phase-shifting, fixed width and modulation of the pulse are all digitized, and it does not need any adjustment for the section of the trigger. It has the features of high reliability, high pulse symmetry, strong anti-interference ability, quick reaction, as well as the advantages of no heat-generating, constant current, energy-saving which is compared with the discharge with the electrical resistance.
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