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Comparative study of maximum power point tracking algorithms
Comparative study of maximum power point tracking algorithms

... the MPP in the steady state and improves the algorithm’s efficiency under constant irradiance conditions. However, it also makes the MPPT slower to respond to changing atmospheric conditions, worsening the erratic behavior on partly cloudy days. Another modification involves measuring the array’s po ...
TRS3221E 数据资料 dataSheet 下载
TRS3221E 数据资料 dataSheet 下载

... RS-232 pins provide IEC G1000-4-2 ESD protection. The device meets the requirements of TIA/EIA-232-F and provides the electrical interface between an asynchronous communication controller and the serial-port connector. The charge pump and four small external capacitors allow operation from a single ...
AN4057
AN4057

... These SPC560Pxx /SPC56APxx microcontrollers are members of a new microcontroller family built on the Power Architecture®. The device is supplied externally with a single voltage supply, which can be either 5 V or 3.3 V depending on application requirements. Internally the chip operates with 2 supply ...
2. octopus system installation
2. octopus system installation

AD6640 数据手册DataSheet下载
AD6640 数据手册DataSheet下载

... that the input voltage on either encode pin does not go below 0 V. The maximum value ensures that the input voltage on either ENCODE pin does not go below 2.0 V or above AVCC (e.g., for a differential input swing of 0.8 V, the min and max common-mode specs become 0.4 V and 2.4 V, respectively). ...
50 MHz to 6 GHz TruPwr Detector ADL5501
50 MHz to 6 GHz TruPwr Detector ADL5501

... Supply Voltage Pin. Operational range 2.7 V to 5.5 V. Square-Domain Filter Pin. Connection for an external capacitor to lower the corner frequency of the squaredomain (or modulation) filter. Capacitor is connected between FLTR and VS and forms a low-pass filter with an 8 kΩ on-chip resistor. The on- ...
Characterictics Program CurveSelect
Characterictics Program CurveSelect

... and personnel protection – Circuit-breakers provide the highest level of complexity with the setting of their tripping characteristics among the protective devices in the low-voltage engineering field. The diverse setting possibilities are explained using the tried and tested NZM circuit-breaker as ...
Exp_8_FFT_Spring13b
Exp_8_FFT_Spring13b

MAX4951C 6Gbps SATA Bidirectional Redriver with Input Equalization, General Description
MAX4951C 6Gbps SATA Bidirectional Redriver with Input Equalization, General Description

... The MAX4951C dual-channel buffer with input equalization and preemphasis is ideal to redrive internal serialATA (SATA) 1i, 2i, and 3i signals as well as eSATA 1m and 2m signals. The device features high electrostatic discharge (ESD) Q8kV Human Body Model (HBM) protection. The device can be placed ne ...
Submersible Effluent Pumps ME40 / ME40AG Series
Submersible Effluent Pumps ME40 / ME40AG Series

... explosive atmospheres. Pump water only with this pump. NOTICE Do not allow the pump to run in a dry sump. It will void the warranty and may damage the pump. An automatic overload protector in the motor will protect the motor from burning out due to overheating/ overloading. When the motor cools down ...
LTM4627 - 15A DC/DC uModule Regulator
LTM4627 - 15A DC/DC uModule Regulator

... The LTM®4627 is a complete 15A output high efficiency switch mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 4.5V to 20V, the LTM4627 supports an output voltage range of 0.6V t ...
dc power supply handbook
dc power supply handbook

... Constant Current Power Supply ........................................................................................................................32 Constant Voltage/Constant Current (CV/CC) Power Supply............................................................................34 Constant Volta ...
MX15 Series User Manual
MX15 Series User Manual

... giving full details of the difficulty, including the model number and serial number. On receipt of this information, service information or a Return Material Authorization (RMA) number will be given. Add the RMA number furnished to the shipping label. Pack the instrument carefully to prevent transpo ...
GS-19XR-8PD
GS-19XR-8PD

... the mechanical contractor. Shop drawings reflecting any changes to the design shall be included in the submittal, and incorporated into the final as-built drawings for the project. 8. Also, if an open motor is provided, a mechanical room thermostat shall be provided and set at 104 F (40 C). If this ...
DigiTrace® 920 Series Heat Trace Controller Operator Console
DigiTrace® 920 Series Heat Trace Controller Operator Console

... This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to Part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment ge ...


... short circuit values that are signi?cantly less than 150KA. ...
ADF7012 Multichannel ISM Band FSK/GFSK/OOK/GOOK
ADF7012 Multichannel ISM Band FSK/GFSK/OOK/GOOK

... GFSK and GOOK Only. This clock output is used to synchronize microcontroller data to the TxDATA pin of the ADF7012. The clock is provided at the same frequency as the data rate. The microcontroller updates TxDATA on the falling edge of TxCLK. The rising edge of TxCLK is used to sample TxDATA at the ...
sondek lp12
sondek lp12

... however, for owners of the Majik LP12, a 45 rpm adaptor is provided along with a second drive belt. We recommend that you only use the second drive belt with the adaptor, as the adaptor will cause the belt to stretch more, therefore it may not provide optimum performance if used when the adaptor is ...
DYNATECH D-BOX
DYNATECH D-BOX

THROTTLE POSITION SENSOR (TPS)—FUNCTION
THROTTLE POSITION SENSOR (TPS)—FUNCTION

... The four (4) vehicle operating conditions are: • Closed throttle (idle or deceleration) • Part throttle (cruise, moderate acceleration) • Wide open throttle (maximum acceleration, de-choke on crank and A/C shut-off) • Throttle angle rate. BACKGROUND Recently, revisions have been made to the TPS, whi ...
BQ24721(C) - Texas Instruments
BQ24721(C) - Texas Instruments

... pack charger with high level of integration for portable applications. This device implements a high performance analog front-end that interfaces to the system power management micro-controller through a simplified SBS-like SMBus interface. The dynamic power management (DPM) function modifies the ch ...
The DatasheetArchive - Datasheet Search Engine
The DatasheetArchive - Datasheet Search Engine

... Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occ ...
Conjugate Match Myths
Conjugate Match Myths

... symmetric, reciprocal devices and can be shown to lead to violations of R.M. Foster‟s Reactance Theorem (and so cannot be passive 2-port devices) and violations of energy conservation  Walt Maxwell‟s understanding of lossy transmission line behavior is poor S.D. Stearns, K6OIK ...
Magnetische Einbau-Messgerдte
Magnetische Einbau-Messgerдte

... • The maximum permissible acceleration values (semi-sinusoidal shock) for shock and impact are valid for 6 ms (EN 60 068-2-27). Under no circumstances should a hammer or similar implement be used to adjust or position the encoder. Temperature range The operating temperature range indicates the ambie ...
SM897624 - Marine Warehouse
SM897624 - Marine Warehouse

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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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