AAT1239-1 数据资料DataSheet下载
... 40V Step-Up Converter for Four to Ten White LEDs required inductor current in order to maintain the desired LED current. The switching cycle initiates when the N-channel MOSFET is turned ON and current ramps up in the inductor. The ON interval is terminated when the inductor current reaches the prog ...
... 40V Step-Up Converter for Four to Ten White LEDs required inductor current in order to maintain the desired LED current. The switching cycle initiates when the N-channel MOSFET is turned ON and current ramps up in the inductor. The ON interval is terminated when the inductor current reaches the prog ...
AN2867
... which means that the open-loop gain should be much higher than 1. The time required for the oscillations to become steady depends on the open-loop gain. Meeting the oscillation conditions is not enough to explain why a crystal oscillator starts to oscillate. Under these conditions, the amplifier is ...
... which means that the open-loop gain should be much higher than 1. The time required for the oscillations to become steady depends on the open-loop gain. Meeting the oscillation conditions is not enough to explain why a crystal oscillator starts to oscillate. Under these conditions, the amplifier is ...
ECE 469 Power Electronics Lab Manual
... settings. In ECE 469, the voltages will usually be kept low to minimize hazards. Be careful when working with spinning motors, and parts that can become hot. Most of our equipment is rugged, but some delicate instruments are required for our experiments. Even rugged instruments can be damaged when m ...
... settings. In ECE 469, the voltages will usually be kept low to minimize hazards. Be careful when working with spinning motors, and parts that can become hot. Most of our equipment is rugged, but some delicate instruments are required for our experiments. Even rugged instruments can be damaged when m ...
Overcurrent and Distance Relays
... connected networks or in open ring networks (ring open at one location), using the reverse interlock principle. This can be used in medium–voltage systems, in power station auxiliary supplement networks, etc., in which cases a transformer feeds from a higher–voltage system onto a busbar with several ...
... connected networks or in open ring networks (ring open at one location), using the reverse interlock principle. This can be used in medium–voltage systems, in power station auxiliary supplement networks, etc., in which cases a transformer feeds from a higher–voltage system onto a busbar with several ...
HMC224MS8 / 224MS8E
... The HMC224MS8 & HMC224MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in transmit-receive applications. The device can control signals from 5.0 to 6.0 GHz and is especially suited for 5.2 GHz UNII and 5.8 GHz ISM applications with only 1.2 dB loss. The design provides exceptional pow ...
... The HMC224MS8 & HMC224MS8E are low-cost SPDT switches in 8-lead MSOP packages for use in transmit-receive applications. The device can control signals from 5.0 to 6.0 GHz and is especially suited for 5.2 GHz UNII and 5.8 GHz ISM applications with only 1.2 dB loss. The design provides exceptional pow ...
Four-Channel DC/DC Controller for Notebook
... In skip mode, all three synchronous buck channels have their own hysteresis comparator to regulate the output voltages. The hysteresis voltage is set internally and typically at 8.5 mV. The delay from the comparator input to the driver output is typically 1.2 µs. low-side driver The low-side driver ...
... In skip mode, all three synchronous buck channels have their own hysteresis comparator to regulate the output voltages. The hysteresis voltage is set internally and typically at 8.5 mV. The delay from the comparator input to the driver output is typically 1.2 µs. low-side driver The low-side driver ...
The Digital Multimeter
... • Read the value on your display. You should obtain a value of about 9 volts, since that is the potential of the battery that powers the circuit boxes. • The type of voltage is indicated by ‘VDC’ to the right of the number displayed, which means ‘volts across a direct current circuit’. ...
... • Read the value on your display. You should obtain a value of about 9 volts, since that is the potential of the battery that powers the circuit boxes. • The type of voltage is indicated by ‘VDC’ to the right of the number displayed, which means ‘volts across a direct current circuit’. ...
Camera Lab 4 - Gateway Coalition
... directions), and moving charge is current. As a result the glow discharge has a relatively small resistance to current flow. Light is emitted as the electrons relax back to their normal locations on the atoms. The right condition to trigger the flash is a voltage pulse applied to a third electrode ( ...
... directions), and moving charge is current. As a result the glow discharge has a relatively small resistance to current flow. Light is emitted as the electrons relax back to their normal locations on the atoms. The right condition to trigger the flash is a voltage pulse applied to a third electrode ( ...
How to select input capacitors for a buck converter
... TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguar ...
... TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguar ...
FUJI IGBT V-IPM APPLICATION MANUAL REH985 September 2012
... • OC and SC are functions to protect the IGBT against breakdown caused by overcurrent or load short-circuit. As these functions are implemented by detection of collector current by detecting elements built in each IGBT, they permit protection against disorder that occurs in any IGBT, and in addition ...
... • OC and SC are functions to protect the IGBT against breakdown caused by overcurrent or load short-circuit. As these functions are implemented by detection of collector current by detecting elements built in each IGBT, they permit protection against disorder that occurs in any IGBT, and in addition ...
MAX13170E +5V Multiprotocol, 3Tx/3Rx, Software- Selectable Clock/Data Transceiver General Description
... The MAX13170E, along with the MAX13172E and the MAX13174E, form a complete software-selectable data terminal equipment (DTE) or data communication equipment (DCE) interface port that supports the V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21), and V.35 protocols. The MAX13170E trans ...
... The MAX13170E, along with the MAX13172E and the MAX13174E, form a complete software-selectable data terminal equipment (DTE) or data communication equipment (DCE) interface port that supports the V.28 (RS-232), V.10/V.11 (RS-449/V.36, EIA-530, EIA-530A, X.21), and V.35 protocols. The MAX13170E trans ...
DESCRIPTION FEATURES
... or 5 V card voltage from the power supply applied on the V DD pin. The digital ISO-7816-3 sequencer controls the converter. Card voltage selection is carried out by the digital input 5V/#V. The circuit is an inductive step-up converter/regulator. The external components required are 2 filter capacit ...
... or 5 V card voltage from the power supply applied on the V DD pin. The digital ISO-7816-3 sequencer controls the converter. Card voltage selection is carried out by the digital input 5V/#V. The circuit is an inductive step-up converter/regulator. The external components required are 2 filter capacit ...
Analytical and Practical Analysis of Switched-Capacitor DC
... can be related to its output impedance, as captured in the model of Figure 1. With this model, the converter provides an ideal dc voltage conversion ratio under no load conditions, and all losses are manifested by voltage drop associated with non-zero load current. Note that losses associated with d ...
... can be related to its output impedance, as captured in the model of Figure 1. With this model, the converter provides an ideal dc voltage conversion ratio under no load conditions, and all losses are manifested by voltage drop associated with non-zero load current. Note that losses associated with d ...
TPS65021 数据资料 dataSheet 下载
... IC for applications powered by one Li-Ion or Li-Polymer cell, and which require multiple power rails. The TPS65021 provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system. All three step-down converter ...
... IC for applications powered by one Li-Ion or Li-Polymer cell, and which require multiple power rails. The TPS65021 provides three highly efficient, step-down converters targeted at providing the core voltage, peripheral, I/O and memory rails in a processor based system. All three step-down converter ...
Valve RF amplifier
A valve RF amplifier (UK and Aus.) or tube amplifier (U.S.), is a device for electrically amplifying the power of an electrical radio frequency signal.Low to medium power valve amplifiers for frequencies below the microwaves were largely replaced by solid state amplifiers during the 1960s and 1970s, initially for receivers and low power stages of transmitters, transmitter output stages switching to transistors somewhat later. Specially constructed valves are still in use for very high power transmitters, although rarely in new designs.