When power is supplied by V or V , the
... The Teridian 73S8009C is a versatile power management and single smart card interface circuit that is ideally suited for smart card reader products that are battery and/or USB bus-powered. In addition to its EMV 4.1 and ISO-7816-3 compliant smart card-to-host interface circuitry; it provides control ...
... The Teridian 73S8009C is a versatile power management and single smart card interface circuit that is ideally suited for smart card reader products that are battery and/or USB bus-powered. In addition to its EMV 4.1 and ISO-7816-3 compliant smart card-to-host interface circuitry; it provides control ...
AN29 - Some Thoughts on DC/DC Converters
... counter output (Trace B) combines with the logic network to present alternately phased clock bursts (Traces C and D) to the base resistors of Q1 and Q2. When φ1 (Trace B) is unclocked it resides in its high state, biasing Q2 and Q4 on. Q4’s collector effectively grounds the “bottom” of L1 (Trace H). ...
... counter output (Trace B) combines with the logic network to present alternately phased clock bursts (Traces C and D) to the base resistors of Q1 and Q2. When φ1 (Trace B) is unclocked it resides in its high state, biasing Q2 and Q4 on. Q4’s collector effectively grounds the “bottom” of L1 (Trace H). ...
Chapter 4.7 - Communication Circuits
... past several years. Once dominated by public safety radio, the 30 to 1000 MHz spectrum is now packed with personal and low cost business radio systems. The vast majority of this equipment uses FM or FSK modulation and is targeted at short range applications. From mobile phones and VHF marine radios ...
... past several years. Once dominated by public safety radio, the 30 to 1000 MHz spectrum is now packed with personal and low cost business radio systems. The vast majority of this equipment uses FM or FSK modulation and is targeted at short range applications. From mobile phones and VHF marine radios ...
Power Electronics - Talking Electronics
... system, it is often desirable and necessary to exercise control over both positive and negative halfcycles. For this purpose, a semiconductor device called triac is used. A triac is a three-terminal semiconductor switching device which can control alternating current in a load. Triac is an abbreviat ...
... system, it is often desirable and necessary to exercise control over both positive and negative halfcycles. For this purpose, a semiconductor device called triac is used. A triac is a three-terminal semiconductor switching device which can control alternating current in a load. Triac is an abbreviat ...
NCV7240 - Octal Low-Side Relay Driver
... Output driver location on one side of the IC layout provides for optimum pcb layout to the loads. Internal clamping structures are provided to limit transient voltages when switching inductive loads. Each output has an over load detection current of 0.6 A (min) where the drivers turn−off and stay la ...
... Output driver location on one side of the IC layout provides for optimum pcb layout to the loads. Internal clamping structures are provided to limit transient voltages when switching inductive loads. Each output has an over load detection current of 0.6 A (min) where the drivers turn−off and stay la ...
LM195/LM395 Ultra Reliable Power Transistors (Rev. C)
... preventing excessive heating. The LM195 offers a significant increase in reliability as well as simplifying power circuitry. In some applications, where protection is unusually difficult, such as switching regulators, lamp or solenoid drivers where normal power dissipation is low, the LM195 is espec ...
... preventing excessive heating. The LM195 offers a significant increase in reliability as well as simplifying power circuitry. In some applications, where protection is unusually difficult, such as switching regulators, lamp or solenoid drivers where normal power dissipation is low, the LM195 is espec ...
ENTC 4390
... X-ray production is most efficient (more x rays are produced per unit time) if the potential of the target is always positive and if the voltage between the filament and target is kept at its maximum value In most x-ray equipment, ac is converted to direct current (dc), and the voltage between filam ...
... X-ray production is most efficient (more x rays are produced per unit time) if the potential of the target is always positive and if the voltage between the filament and target is kept at its maximum value In most x-ray equipment, ac is converted to direct current (dc), and the voltage between filam ...
AD8112 数据手册DataSheet 下载
... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
... Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. Specifications subject to change without notice. N ...
TEC 88 - Fuji Electric America
... In the air-core type, shielded cores with stacked silicon steel plates are adopted to prevent the magnetic flux from heating the tank and other metal portions. Meanwhile, the proportion of the core mass of the air-core type is smaller compared with that of a transformer. To smoothly absorb the magne ...
... In the air-core type, shielded cores with stacked silicon steel plates are adopted to prevent the magnetic flux from heating the tank and other metal portions. Meanwhile, the proportion of the core mass of the air-core type is smaller compared with that of a transformer. To smoothly absorb the magne ...
NX5P3001 1. General description Bidirectional high-side power switch for charger and
... translation (EN) and low capacitance Transient Voltage Suppression (TVS) type ESD-clamps for USB data and ID pins. When EN is set HIGH the device enters a low-power mode, disabling all protection circuits. When used in combined charger and USB-OTG applications the 30 V tolerant VBUSI switch terminal ...
... translation (EN) and low capacitance Transient Voltage Suppression (TVS) type ESD-clamps for USB data and ID pins. When EN is set HIGH the device enters a low-power mode, disabling all protection circuits. When used in combined charger and USB-OTG applications the 30 V tolerant VBUSI switch terminal ...
CR7931-NA108 Voltage Regulator Equipment
... and while the amplidyne is operated, it is disconnected from the exciter-field circuit so that it cannot affect the excitation of the a-c machine. This permits all the regulator equipment to be operated for test purposes. REGULATOR SIGNAL VOLTAGE When the control switch is at ON, the regulator is co ...
... and while the amplidyne is operated, it is disconnected from the exciter-field circuit so that it cannot affect the excitation of the a-c machine. This permits all the regulator equipment to be operated for test purposes. REGULATOR SIGNAL VOLTAGE When the control switch is at ON, the regulator is co ...
INDIANA UNIVERSITY - PURDUE UNIVERSITY FORT WAYNE DEPARTMENT OF ENGINEERING
... The type of motor selected for the project is a brushless DC motor. This type of motor provides high efficiency due to the arrangement of permanent magnets on the rotor and electromagnetic coils on the stator. This eliminates the need for commutating brushes. Commutation of the brushless motor is ac ...
... The type of motor selected for the project is a brushless DC motor. This type of motor provides high efficiency due to the arrangement of permanent magnets on the rotor and electromagnetic coils on the stator. This eliminates the need for commutating brushes. Commutation of the brushless motor is ac ...
MAX3735/MAX3735A 2.7Gbps, Low-Power SFP Laser Drivers General Description Features
... TX_FAULT is an open-collector output and must be pulled up with a 4.7kΩ to 10kΩ resistor. Guaranteed by design and characterization. VCC turn-on time must be ≤ 0.8s, DC-coupled interface. Gain stability is defined by the digital diagnostic document (SFF-8472, rev. 9.0) over temperature and supply va ...
... TX_FAULT is an open-collector output and must be pulled up with a 4.7kΩ to 10kΩ resistor. Guaranteed by design and characterization. VCC turn-on time must be ≤ 0.8s, DC-coupled interface. Gain stability is defined by the digital diagnostic document (SFF-8472, rev. 9.0) over temperature and supply va ...
MAX3223-EP 数据资料 dataSheet 下载
... TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous mater ...
... TBD: The Pb-Free/Green conversion plan has not been defined. Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous mater ...
2011 Protection Design Guide for Portable Device
... ESD Immunity: System Level vs. Device Level For ESD immunity, it is important to distinguish between system level immunity and device level immunity. The JEDEC JESD22-A114E which is equivalent to the earlier Mil-Std-883 is a device level standard appropriate for the level of ESD threat seen in the m ...
... ESD Immunity: System Level vs. Device Level For ESD immunity, it is important to distinguish between system level immunity and device level immunity. The JEDEC JESD22-A114E which is equivalent to the earlier Mil-Std-883 is a device level standard appropriate for the level of ESD threat seen in the m ...
ics8543.pdf
... The aforementioned trademark, HiPerClockS™ is a trademark of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) ass ...
... The aforementioned trademark, HiPerClockS™ is a trademark of Integrated Circuit Systems, Inc. or its subsidiaries in the United States and/or other countries. While the information presented herein has been checked for both accuracy and reliability, Integrated Circuit Systems, Incorporated (ICS) ass ...
Session Eight: Short Circuit Requirements and Selection of
... outlined in Fig.5(c) above. The amplitudes of these oscillations are sometimes as high as to breakdown the hot dielectric medium and reignite the arc. Therefore, fast rate of recovery of the dielectric strength is important in a circuit breaker design which varies with: ...
... outlined in Fig.5(c) above. The amplitudes of these oscillations are sometimes as high as to breakdown the hot dielectric medium and reignite the arc. Therefore, fast rate of recovery of the dielectric strength is important in a circuit breaker design which varies with: ...
Device Maintenance as it relates to the Arc Flash Hazard
... Another consideration is addressed by OSHA in 29 CFR 1910.334(b)(2) which states: “Reclosing circuits after protective device operation. After a circuit is deenergized by a circuit protective device, the circuit may NOT be manually reenergized until it has been determined that the equipment and circ ...
... Another consideration is addressed by OSHA in 29 CFR 1910.334(b)(2) which states: “Reclosing circuits after protective device operation. After a circuit is deenergized by a circuit protective device, the circuit may NOT be manually reenergized until it has been determined that the equipment and circ ...
Application of Current Differential Protection to Tapped
... When a line differential relay uses a traditional characteristic with separate boundaries created by slope and pickup settings, then only the pickup setting can prevent misoperation due to the leaking load current - increasing the slope does not help in single infeed situation. Some relays, however, ...
... When a line differential relay uses a traditional characteristic with separate boundaries created by slope and pickup settings, then only the pickup setting can prevent misoperation due to the leaking load current - increasing the slope does not help in single infeed situation. Some relays, however, ...
Rectifier
A rectifier is an electrical device that converts alternating current (AC), which periodically reverses direction, to direct current (DC), which flows in only one direction. The process is known as rectification. Physically, rectifiers take a number of forms, including vacuum tube diodes, mercury-arc valves, copper and selenium oxide rectifiers, semiconductor diodes, silicon-controlled rectifiers and other silicon-based semiconductor switches. Historically, even synchronous electromechanical switches and motors have been used. Early radio receivers, called crystal radios, used a ""cat's whisker"" of fine wire pressing on a crystal of galena (lead sulfide) to serve as a point-contact rectifier or ""crystal detector"".Rectifiers have many uses, but are often found serving as components of DC power supplies and high-voltage direct current power transmission systems. Rectification may serve in roles other than to generate direct current for use as a source of power. As noted, detectors of radio signals serve as rectifiers. In gas heating systems flame rectification is used to detect presence of a flame.Because of the alternating nature of the input AC sine wave, the process of rectification alone produces a DC current that, though unidirectional, consists of pulses of current. Many applications of rectifiers, such as power supplies for radio, television and computer equipment, require a steady constant DC current (as would be produced by a battery). In these applications the output of the rectifier is smoothed by an electronic filter (usually a capacitor) to produce a steady current.More complex circuitry that performs the opposite function, converting DC to AC, is called an inverter.