TPS70702 数据资料 dataSheet 下载
... (enable) shuts down both regulators, reducing the input current to 1µA at TJ = +25°C. The device is enabled when the EN pin is connected to a low-level input voltage. The output voltages of the two regulators are sensed at the VSENSE1 and VSENSE2 pins, respectively. The input signal at the SEQ pin c ...
... (enable) shuts down both regulators, reducing the input current to 1µA at TJ = +25°C. The device is enabled when the EN pin is connected to a low-level input voltage. The output voltages of the two regulators are sensed at the VSENSE1 and VSENSE2 pins, respectively. The input signal at the SEQ pin c ...
LTC3600 - 15V, 1.5A Synchronous Rail-to-Rail
... regulator. The accurate 50µA current source on the ISET pin allows the user to use just one external resistor to program the output voltage in a unity gain buffer fashion. In normal operation, the internal top power MOSFET is turned on for a fixed interval determined by a fixed one-shot timer OST. W ...
... regulator. The accurate 50µA current source on the ISET pin allows the user to use just one external resistor to program the output voltage in a unity gain buffer fashion. In normal operation, the internal top power MOSFET is turned on for a fixed interval determined by a fixed one-shot timer OST. W ...
LTM8021 - 36VIN, 500mA Step-Down DC/DC uModule
... voltage rises. At very large VIN to VOUT ratios, the duty cycle can be very small. Because the LTM8021’s internal controller IC has a minimum on-time, the regulator will skip cycles in order to maintain output voltage regulation. This will result in a larger output voltage ripple and possible distur ...
... voltage rises. At very large VIN to VOUT ratios, the duty cycle can be very small. Because the LTM8021’s internal controller IC has a minimum on-time, the regulator will skip cycles in order to maintain output voltage regulation. This will result in a larger output voltage ripple and possible distur ...
welding/brazing/torch - Area X FFA Association
... REVERSE POLARITY DC+ — ELECTRODE IS POSITIVE; WORK IS NEGATIVE ...
... REVERSE POLARITY DC+ — ELECTRODE IS POSITIVE; WORK IS NEGATIVE ...
1N4001 - 1N4007
... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
... The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants cont ...
LTC3892/ - 60V Low IQ, Dual, 2-Phase Synchronous Step
... VFB1,2. The specification at 85°C is not tested in production and is assured by design, characterization and correlation to production testing at other temperatures (125°C for the LTC3892E/LTC3892E-1/LTC3892E-2 and LTC3892I/LTC3892I-1/LTC3892I-2, 150°C for the LTC3892H/LTC3892H-1/ LTC3892H-2 and LTC ...
... VFB1,2. The specification at 85°C is not tested in production and is assured by design, characterization and correlation to production testing at other temperatures (125°C for the LTC3892E/LTC3892E-1/LTC3892E-2 and LTC3892I/LTC3892I-1/LTC3892I-2, 150°C for the LTC3892H/LTC3892H-1/ LTC3892H-2 and LTC ...
Sollatek SVS Range Voltage Stabilisers
... The SVS has an Automatic Voltage Switcher (AVS) feature. This has two functions. Firstly to prevent harm to equipment should the electricity supply too rapidly switch ON and OFF. The AVS feature monitors the time between these events and automatically delays switching on the supply to the equipment ...
... The SVS has an Automatic Voltage Switcher (AVS) feature. This has two functions. Firstly to prevent harm to equipment should the electricity supply too rapidly switch ON and OFF. The AVS feature monitors the time between these events and automatically delays switching on the supply to the equipment ...
XENON FLASH LAMPS
... The xenon flash lamp is widely used as a spectroscopic analysis light source, camera flash lamp, stroboscope light source, high-speed shutter camera lamp, and for many other applications because it produces instant high-power white light. It also provides a high-intensity continuous spectrum from th ...
... The xenon flash lamp is widely used as a spectroscopic analysis light source, camera flash lamp, stroboscope light source, high-speed shutter camera lamp, and for many other applications because it produces instant high-power white light. It also provides a high-intensity continuous spectrum from th ...
Aalborg Universitet Benchmarking of Voltage Sag Generators
... A contactor is one type of relay that can handle higher VSG power rating (eg. MV level applications) which is required in most renewable energy generation systems, but it can be extremely loud in operations. Compared to such kind of relay, a solid-state relay (SSR) has no moving parts but can also a ...
... A contactor is one type of relay that can handle higher VSG power rating (eg. MV level applications) which is required in most renewable energy generation systems, but it can be extremely loud in operations. Compared to such kind of relay, a solid-state relay (SSR) has no moving parts but can also a ...
MAX1813 Dynamically-Adjustable, Synchronous Step-Down Controller with Integrated Voltage Positioning General Description
... voltage-positioning input (VPCS), combined with a high-DC-accuracy control loop, is used to implement a power supply that modifies its output set point in response to the load current. This arrangement decreases full-load power dissipation and reduces the required number of output capacitors. The ou ...
... voltage-positioning input (VPCS), combined with a high-DC-accuracy control loop, is used to implement a power supply that modifies its output set point in response to the load current. This arrangement decreases full-load power dissipation and reduces the required number of output capacitors. The ou ...
a new static synchronous series compensator for real power control
... In this thesis a new Static Synchronous Series Compensator (SSSC) for the control of active power flow on a transmission line is proposed and its effectiveness is investigated. The new SSSC is based on injecting a voltage in a givea line to counter or augment the voltage &op produced by the inductiv ...
... In this thesis a new Static Synchronous Series Compensator (SSSC) for the control of active power flow on a transmission line is proposed and its effectiveness is investigated. The new SSSC is based on injecting a voltage in a givea line to counter or augment the voltage &op produced by the inductiv ...
Issues to Consider when Substituting Large Power Transformers in
... Finding a substitute transformer with suitable primary and secondary rated voltages is a challenging task, difficult to be selected intuitively. Additionally, a transformer design for a certain voltage determines the size of the core and has a significant impact on the overall transformer size and c ...
... Finding a substitute transformer with suitable primary and secondary rated voltages is a challenging task, difficult to be selected intuitively. Additionally, a transformer design for a certain voltage determines the size of the core and has a significant impact on the overall transformer size and c ...
Analytical and Practical Analysis of Switched-Capacitor DC
... used must be controlled. Level-shifting circuitry is often used to translate the clock to drive each switch at the correct voltage level. Additionally, the power required to drive the switches (the gating loss) is considered. Each capacitor and switch also has parasitic elements: stray capacitance t ...
... used must be controlled. Level-shifting circuitry is often used to translate the clock to drive each switch at the correct voltage level. Additionally, the power required to drive the switches (the gating loss) is considered. Each capacitor and switch also has parasitic elements: stray capacitance t ...
Comparative Analysis of Cascaded H
... requires associated gate drive circuits and adds further complexity to the converter. Another disadvantage of multilevel power converters is that the small voltage steps are typically produced by isolated voltage sources or a bank of series capacitors. Isolated voltage sources may not always be read ...
... requires associated gate drive circuits and adds further complexity to the converter. Another disadvantage of multilevel power converters is that the small voltage steps are typically produced by isolated voltage sources or a bank of series capacitors. Isolated voltage sources may not always be read ...
LM5046 Phase-Shifted Full-Bridge PWM Controller with Integrated
... features necessary to implement a phase-shifted fullbridge topology power converter using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100 V. This highly integrated controller-driver provid ...
... features necessary to implement a phase-shifted fullbridge topology power converter using either current mode or voltage mode control. This device is intended to operate on the primary side of an isolated DC-DC converter with input voltage up to 100 V. This highly integrated controller-driver provid ...
Application Note for an LLC Resonant Converter Using
... wide voltage range. By comparison, the LLC resonant converter can realize a wide input voltage range without sacrificing efficiency. Another of the LLC resonant converter’s merits is the capacity to achieve zero-voltage switching (ZVS) for primary side switches and zero-current switching (ZCS) for t ...
... wide voltage range. By comparison, the LLC resonant converter can realize a wide input voltage range without sacrificing efficiency. Another of the LLC resonant converter’s merits is the capacity to achieve zero-voltage switching (ZVS) for primary side switches and zero-current switching (ZCS) for t ...
Spark-gap transmitter
A spark-gap transmitter is a device that generates radio frequency electromagnetic waves using a spark gap.Spark gap transmitters were the first devices to demonstrate practical radio transmission, and were the standard technology for the first three decades of radio (1887–1916). Later, more efficient transmitters were developed based on rotary machines like the high-speed Alexanderson alternators and the static Poulsen Arc generators.Most operators, however, still preferred spark transmitters because of their uncomplicated design and because the carrier stopped when the telegraph key was released, which let the operator ""listen through"" for a reply. With other types of transmitter, the carrier could not be controlled so easily, and they required elaborate measures to modulate the carrier and to prevent transmitter leakage from de-sensitizing the receiver. After WWI, greatly improved transmitters based on vacuum tubes became available, which overcame these problems, and by the late 1920s the only spark transmitters still in regular operation were ""legacy"" installations on naval vessels. Even when vacuum tube based transmitters had been installed, many vessels retained their crude but reliable spark transmitters as an emergency backup. However, by 1940, the technology was no longer used for communication. Use of the spark-gap transmitter led to many radio operators being nicknamed ""Sparks"" long after they ceased using spark transmitters. Even today, the German verb funken, literally, ""to spark,"" also means ""to send a radio message or signal.""