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MAX870/MAX871 Switched-Capacitor Voltage Inverters General Description Features
MAX870/MAX871 Switched-Capacitor Voltage Inverters General Description Features

... In the circuit of Figure 6, capacitors C1 and C2 form the inverter, while C3 and C4 form the doubler. C1 and C3 are the pump capacitors; C2 and C4 are the reservoir capacitors. Because both the inverter and doubler use part of the charge-pump circuit, loading either output causes both outputs to dec ...
GP-SW 1000-3000
GP-SW 1000-3000

... Battery terminals: Connect to 12/24 V battery or other 12/24 V power source. [+] is positive and [-] is negative. Reverse polarity connection will blow the internal fuse and may damage inverter permanently. ...
Naim Discrete Regulator - English
Naim Discrete Regulator - English

... reference that should be as clean and as constant as possible since any noise or other fluctuations in the reference will be carried through to the regulator output. Naim Discrete Regulator uses a 6.9 volt ‘subsurface’ zener diode in this role, a type which is more accurate and more stable than conv ...
Vacuum Tube amplifier
Vacuum Tube amplifier

ad515a data sheet
ad515a data sheet

... current-to-voltage converting amplifier. This possibility necessitates some form of input protection. Many electrometer type devices, especially CMOS designs, can require elaborate Zener protection schemes that often compromise overall performance. The AD515A requires input protection only if the so ...
Design, construction, system
Design, construction, system

... Figure 3. Starting from the right side of the figure, the four transformers and power modules of the HVPS were placed in an air-conditioned room to control dirt and humidity, while providing a physical barrier for electrical safety. Just outside this transformer room, switch gear controls and monito ...
AP65500 Description Pin Assignments
AP65500 Description Pin Assignments

... When the HS MOSFET is on, inductor current starts to increase. The current sense amplifier senses and amplifies the inductor current. Since the current mode control is subject to sub-harmonic oscillations that peak at half the switching frequency, ramp slope compensation is utilized. This will help ...
PPT Chapter 4 - WordPress.com
PPT Chapter 4 - WordPress.com

... Draw less power because of large resistance. Simplest as they use only one basic element, NMOS transistor. ...
World in motion
World in motion

... inputs, both versions come complete with a range of serial encoder interfaces. These include Endat 2.2, Hiperface, SSI, Yaskawa Sigma II, and Tamagawa. For more recent and future protocols, not included in the DSPgate3, provision has been made to fit a mezzanine board to facilitate the use of these ...
Bq241x0/3/4/5/8/9, bq24170/1/2, bq24133
Bq241x0/3/4/5/8/9, bq24170/1/2, bq24133

... charger continuously monitors the battery temperature by measuring the battery temperature and controls both the charge voltage and charge current. Also the part is featured with the Dynamic Power Management (DPM) to reduce the battery charge current as the input current reaches its limits. The allo ...
AX8052 Power On Reset
AX8052 Power On Reset

05-Three Phase Analysis
05-Three Phase Analysis

... vector diagram ...
Si3210/15/16 DC-DC CONVERTER
Si3210/15/16 DC-DC CONVERTER

... equal current flow from VDC to both the SDCL and SDCH pins with zero current flow through Q7. (R20 is set to be equal to R19 and the value of R18 is small.) When current flows through Q7, it generates a voltage drop across R18 and reduces the current flow into the SDCL pin. When the current flow int ...
The Advantages of Electronic Ignition
The Advantages of Electronic Ignition

... gives the ability to programme any firing angle required. To help engine power at idle, the timing can be advanced, on and below the idle speed, this stabilises and reduces the chance of stalling. From idle, the advance can be sharper than provided by the previous Mk3 system, giving even better thro ...
The Secrets of UL and NFPA. - Automation Technology
The Secrets of UL and NFPA. - Automation Technology

Naim Discrete Regulator
Naim Discrete Regulator

GP-SW 1000-3000
GP-SW 1000-3000

... Battery terminals: Connect to 12/24 V battery or other 12/24 V power source. [+] is positive and [-] is negative. Reverse polarity connection will blow the internal fuse and may damage inverter permanently. ...
Generator Owner VSS MEN_LCRA-v1
Generator Owner VSS MEN_LCRA-v1

inverter 002 guide
inverter 002 guide

... terminals. The “neutral” terminals remain powered with respect to the “ground” terminal. 3. Do not make any electrical connections or disconnections in areas designated as IGNITION PROTECTED. This includes 12 Volt DC cigarette plug connections, and terminal connections. 4. This is not a toy. 5. DO N ...
Exp01v3
Exp01v3

LTC1758-1/LTC1758-2 - RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range.
LTC1758-1/LTC1758-2 - RF Power Controllers with 250kHz Control Loop Bandwidth and 40dB Dynamic Range.

... The LTC1758 has an internal 200Ω termination resistor at the RF pin. If a directional coupler is used, it is recommended that an external 68Ω termination resistor be connected between the RF coupling capacitor (33pF), and ground at the side connected to the directional coupler. If the termination is ...
PDF
PDF

BD9763FVM
BD9763FVM

... D-S Voltage : Over (Output voltage + Vf of Di) G-S Voltage : Over input voltage D-S Current : Over Ipeak at the section of output inductor (4) Diode It is recommended to use a schottky diode which satisfies followings and has low forward voltage drop and high switching speed. Maximum current : Over ...
Aalborg Universitet High-Performance Control of Paralleled Three-Phase Inverters for Residential
Aalborg Universitet High-Performance Control of Paralleled Three-Phase Inverters for Residential

... (CAN bus), a central controller is used to derive compensated voltage references, which will be used by local controller, and exchange with DC/AC modules. This paper is organized as follows. Section II discusses the UPS topologies that are being used and presents the proposed control structure. In o ...
modeling and control of the ultracapacitor
modeling and control of the ultracapacitor

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Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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