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HMC981LP3E 数据资料DataSheet下载
HMC981LP3E 数据资料DataSheet下载

... down to 4V. The gate control can both sink and source current (±0.8 mA) to achieve constant bias current over input power variations applied to the amplifier. The HMC981LP3E also generates a second gate voltage (VG2). VG2 can be adjusted through a resistor divider connected to VDD for amplifiers whi ...
Fence Detection and Control
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RD00HHS1 数据资料DataSheet下载
RD00HHS1 数据资料DataSheet下载

... Please also pay attention to information published by Mitsubishi Electric Corporation by various means, including the Mitsubishi Semiconductor home page (http://www.MitsubishiElectric.com/). •When using any or all of the information contained in these materials, including product data, diagrams, cha ...
Electromagnetic Induction
Electromagnetic Induction

... If the current (or voltage) is constantly changing, how can we say what its value is? We can’t take the average value because it’s zero. We could take the height of the wave – but this keeps changing with time. We could take the maximum height – but if the maximum height is say 3 Amps, it still won’ ...
DCR3000
DCR3000

... 1. The total resistance (loop load resistance) of input load resistance of the distributor and receiving instrument on the same loop and line resistance should be within the allowable range indicated in Figure 1. 2. To reduce a deflection of output indication due to communication signals, it is requ ...
a AN-202 APPLICATION NOTE
a AN-202 APPLICATION NOTE

... Remember that the impulse response of the power supply itself is not what is likely to appear at the amplifier. Thirty or forty centimeters of wire can act like a high Q inductor to add a high-frequency component to the normally overdamped supply response. A decoupling capacitor near the amplifier w ...
Electrical Laws
Electrical Laws

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Voltmeter and Ammeter Loading Effects
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... A similar effect occurs when an ammeter is connected into a circuit. Consider the circuit in Figure 2. When an ammeter is placed into the circuit to measure the current I, we expect that the ammeter will indicate the correct current. This would be a correct assumption if the ammeter had an internal ...
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... To obtain accurate frequency, confirm the Crystal-matching with the last board to get rid of a problem by a mass-production. Depending on the conditions of the printed circuit board, mount an additional electrolytic capacitor between the power supply and GND terminal. For EMI protection, it is effec ...
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AVX Highlights Technology & Application Solutions at a Glance Committed to excellence

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... the analysis results within the substation, the sub-network and the secondary grid are displayed on the one-line diagram and in the reports accordingly. ...
ARM-based Flash MCU SAM G53 Series Description SUMMARY DATASHEET
ARM-based Flash MCU SAM G53 Series Description SUMMARY DATASHEET

... microcontrollers based on the high-performance 32-bit ARM® Cortex®-M4 RISC processor. It operates at a maximum speed of 48 MHz and features up to 512 Kbytes of Flash and 96 Kbytes of SRAM. The peripheral set includes one USART, two UARTs, three I2C-bus interfaces (TWI), up to two SPIs, two three-cha ...
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... Recently, there is increasing interest in implementing adaptive RF electronics blocks such as, tunable impedance matching networks, voltage controlled oscillators(VCOs), tunable power splitters, phase shifters tunable band stop and band pass filters with tunable capacitors( varactors). Tunable block ...
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... Current transformers (CTs) are commonly used in electricity meters for current measurement, and to provide isolation when direct coupling is not possible. However, all CTs include an inherent phase shift that changes the power factor of its output. Inductive and capacitive loads cause the measured a ...
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Heathkit HM-102 - Orange County (California) Amateur Radio Club
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... Components C7, C8, D1, R5 and C9 make up an RF voltmeter. These components look like Page 3 of 7 ...
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SSM2517 数据手册DataSheet 下载
SSM2517 数据手册DataSheet 下载

... scheme that requires no external LC output filters. The closed-loop, three-level modulator design retains the benefits of an all-digital amplifier, yet enables very good PSRR and audio performance. The modulation continues to provide high efficiency even at low output power and has an SNR of 96 dB. ...
Aalborg Universitet Trintis, Ionut; Douglass, Philip; Maheshwari, Ramkrishan; Munk-Nielsen, Stig
Aalborg Universitet Trintis, Ionut; Douglass, Philip; Maheshwari, Ramkrishan; Munk-Nielsen, Stig

... next generation of switching devices for the power electronic converters used in many applications. With the continuing optimization of production and decreasing cost of the dies, SiC is expected to replace the conventional Insulated Gate Bipolar Transistors (IGBTs) which are approaching the theoret ...
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... sequence of power transistors 5-7-6-5. The ?rst RC net to enable the direction of rotation to be reversed. The works 13, 14, 15 differ from the second RC networks 15 direction of rotation could also be reversed by altering 17, 18, 19—-i.e., they produce a different phase shift of the resistance of t ...
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... Should Customers purchase or use Diodes Incorporated products for any unintended or unauthorized application, Customers shall indemnify and hold Diodes Incorporated and its representatives harmless against all claims, damages, expenses, and attorney fees arising out of, directly or indirectly, any c ...
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PowerLogic Multi-Circuit Meter

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< 1 ... 805 806 807 808 809 810 811 812 813 ... 2646 >

Switched-mode power supply



A switched-mode power supply (switching-mode power supply, switch-mode power supply, SMPS, or switcher) is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently. Like other power supplies, an SMPS transfers power from a source, like mains power, to a load, such as a personal computer, while converting voltage and current characteristics. Unlike a linear power supply, the pass transistor of a switching-mode supply continually switches between low-dissipation, full-on and full-off states, and spends very little time in the high dissipation transitions, which minimizes wasted energy. Ideally, a switched-mode power supply dissipates no power. Voltage regulation is achieved by varying the ratio of on-to-off time. In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. This higher power conversion efficiency is an important advantage of a switched-mode power supply. Switched-mode power supplies may also be substantially smaller and lighter than a linear supply due to the smaller transformer size and weight.Switching regulators are used as replacements for linear regulators when higher efficiency, smaller size or lighter weight are required. They are, however, more complicated; their switching currents can cause electrical noise problems if not carefully suppressed, and simple designs may have a poor power factor.
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