Reference Design For Safe Nebulizer

This reference design supplies a complete resolution with superior analog, digital, and security measures, making it ideally suited for transportable, rechargeable, and safe fashionable digital gadgets that require reliability and effectivity.

The Safe Nebulizer represents a big development in medical know-how, addressing the vital want for dependable and safe drug supply techniques in respiratory care. This machine is designed to manage remedy within the type of a mist, making certain environment friendly and direct supply to the lungs for sufferers affected by situations corresponding to bronchial asthma, persistent obstructive pulmonary illness (COPD), and different respiratory illnesses. This integrates superior security measures to forestall unauthorised entry and tampering, thereby safeguarding affected person well being and drugs integrity. Its functions prolong past conventional medical settings, proving invaluable in residence healthcare, telemedicine, and emergency medical providers. 

Central to the design by Microchip Know-how is an 8-bit core-independent analog microcontroller unit (MCU), particularly the PIC16F1718. This MCU boasts eXtreme Low Energy (XLP) know-how, making certain minimal vitality consumption. Its core-independent peripherals enable for versatile performance, together with a Numerically Managed Oscillator (NCO) for exact frequency technology, a Configurable Logic Cell (CLC) for customised logic capabilities, and a Complementary Output Generator (COG) for producing complementary waveform outputs. Moreover, the Zero Cross Detect (ZCD) function enhances sign processing capabilities.

The PIC16F1718 is supplied with a 17-channel 10-bit Analog-to-Digital Converter (ADC), offering high-resolution analog information conversion. It additionally consists of each 8-bit and 5-bit Digital-to-Analog Converters (DACs), facilitating correct analog sign technology. The Peripheral Pin Choose (PPS) performance presents flexibility in pin configuration, and the machine is on the market in numerous packages, together with a compact ultra-thin QFN (UQFN) bundle, making it appropriate for space-constrained functions.

For safety, the design incorporates the ATSHA204 CryptoAuthentication IC, which supplies multi-level {hardware} safety. This IC helps safe authentication and key alternate, leveraging a superior SHA-256 hash algorithm and a best-in-class 256-bit key size. It incorporates a high-quality {hardware} random quantity generator and ensures a novel serial quantity for every machine. With 4.5 Kbit EEPROM for key and information storage, it helps high-speed I²C and single-wire interface choices, making certain strong and versatile communication. Working inside a 1.8–5.5V vary and consuming lower than 150 nA in sleep mode, it’s ideally suited for low-power functions. The safe personalization function provides an additional layer of safety, defending in opposition to unauthorized entry.

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The PIC12F1572 8-bit MCU is one other important element of this design. It options an enhanced mid-range core with 49 directions and 16 stack ranges, offering environment friendly processing capabilities. Its Flash Program Reminiscence consists of self-read/write functionality, and the Excessive Endurance Flash Reminiscence (HEF) presents 128B of non-volatile information storage. Accessible in a small UDFN bundle, this MCU is designed for compact and environment friendly integration into quite a lot of techniques.

Microchip has examined this reference design. It comes with a invoice of supplies (BOM), schematics, meeting drawing, printed circuit board (PCB) format, and so forth. You’ll find further information in regards to the reference design on the corporate’s web site. To learn extra about this reference design, click on right here.