Design of Ultra-Low-Power Analog-to-Digital Converters Dai Zhang
... For systems powered by small non-rechargeable batteries over their entire lifetime, such as medical implant devices, ultra-low power consumption is paramount. In these systems, analog-to-digital converters (ADCs) are key components as the interface between the analog world and the digital domain. Th ...
... For systems powered by small non-rechargeable batteries over their entire lifetime, such as medical implant devices, ultra-low power consumption is paramount. In these systems, analog-to-digital converters (ADCs) are key components as the interface between the analog world and the digital domain. Th ...
MAX3349EA USB 2.0 Full-Speed Transceiver with UART Multiplexing Mode General Description
... microprocessor or ASIC. The device supports enumeration, suspend, and VBUS detection. A special UART multiplexing mode routes external UART signals (Rx and Tx) to D+ and D-, allowing the use of a shared connector to reduce cost and part count for mobile devices. The UART interface allows mobile devi ...
... microprocessor or ASIC. The device supports enumeration, suspend, and VBUS detection. A special UART multiplexing mode routes external UART signals (Rx and Tx) to D+ and D-, allowing the use of a shared connector to reduce cost and part count for mobile devices. The UART interface allows mobile devi ...
2SA1646,2SA1646-Z Data Sheet Silicon Power Transistor
... All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm the latest product information with a Renes ...
... All information included in this document is current as of the date this document is issued. Such information, however, is subject to change without any prior notice. Before purchasing or using any Renesas Electronics products listed herein, please confirm the latest product information with a Renes ...
Loudness, Its Definition, Measurement and
... basis, a mathematical formula was given for used as a precisemeans of defining it. However, calculating the loudness lossesof a sound being no such simple relation exists. transmitted to the ear, due to changes in the The magnitude of an auditory sensation, that transmissionsystem. The formula was l ...
... basis, a mathematical formula was given for used as a precisemeans of defining it. However, calculating the loudness lossesof a sound being no such simple relation exists. transmitted to the ear, due to changes in the The magnitude of an auditory sensation, that transmissionsystem. The formula was l ...
Department of Electrical Engineering Master Thesis Master thesis performed in datorteknik
... above. Especially when it comes to voltage-mode DC-DC converters, since an ADC is the only link between the analog and digital parts [3]. However, this is not the case with current mode control where the current has to be sensed as well, which is described in the theory chapter. By Increasing the si ...
... above. Especially when it comes to voltage-mode DC-DC converters, since an ADC is the only link between the analog and digital parts [3]. However, this is not the case with current mode control where the current has to be sensed as well, which is described in the theory chapter. By Increasing the si ...
- IEEE Mentor
... Pad-Mounted Transformers Ñ Used outside buildings where conventional unit substations might not be appropriate, and are either single-phase or three-phase units. Because they are of tamper-resistant construction, they do not require fencing. Primary and secondary connections are made in compartments ...
... Pad-Mounted Transformers Ñ Used outside buildings where conventional unit substations might not be appropriate, and are either single-phase or three-phase units. Because they are of tamper-resistant construction, they do not require fencing. Primary and secondary connections are made in compartments ...
N3 Instruction Manual
... nearest Teco’s distributor or sales representative who will be willing to help you. ※Precautions The inverter is an electrical product. For your safety, there are symbols such as “Danger”, “Caution” in this manual as a reminder to pay attention to safety instructions on handling, installing, operati ...
... nearest Teco’s distributor or sales representative who will be willing to help you. ※Precautions The inverter is an electrical product. For your safety, there are symbols such as “Danger”, “Caution” in this manual as a reminder to pay attention to safety instructions on handling, installing, operati ...
Fuse Selection Guide
... Once all of these factors are known, then the engineer can calculate the available short circuit current to the fuse. The fuse must be selected as to have a greater short circuit rating than what is available in the circuit (otherwise the fuse can explode and cause great harm to people and equipment ...
... Once all of these factors are known, then the engineer can calculate the available short circuit current to the fuse. The fuse must be selected as to have a greater short circuit rating than what is available in the circuit (otherwise the fuse can explode and cause great harm to people and equipment ...
Transformer
... is Pab=VabIacos(300+) Power from winding ‘bc’ is Pcb=VcbIccos(300-) Therefore total power is =2VL-LILcos300cos or 57.7% of total power from 3 phases ...
... is Pab=VabIacos(300+) Power from winding ‘bc’ is Pcb=VcbIccos(300-) Therefore total power is =2VL-LILcos300cos or 57.7% of total power from 3 phases ...
Selector Switch Generator
... designed to be the primary source of the generator’s residual magnetism. This residual magnetism allows the exciter rotor (armature) to produce AC voltage even when the exciter stator (field) is not powered. This AC voltage is rectified to DC by the rotating rectifier assembly and fed directly to th ...
... designed to be the primary source of the generator’s residual magnetism. This residual magnetism allows the exciter rotor (armature) to produce AC voltage even when the exciter stator (field) is not powered. This AC voltage is rectified to DC by the rotating rectifier assembly and fed directly to th ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.