Redalyc.Distributed maximum power point tracking in photovoltaic
... IEEE), respectively. This paper proposes a new active-bypass solution (AB) to maximize the power extracted from PV panels at a module granularity level [3], [5]. The proposed AB structure uses a parallel-like connection instead of the cascade, series-like, connection of typical DMPPT solutions [3], ...
... IEEE), respectively. This paper proposes a new active-bypass solution (AB) to maximize the power extracted from PV panels at a module granularity level [3], [5]. The proposed AB structure uses a parallel-like connection instead of the cascade, series-like, connection of typical DMPPT solutions [3], ...
A Nyquist-Rate Pixel-Level ADC for CMOS Image Sensors
... produce color NTSC video with only an external power supply and a crystal oscillator. This “system-on-chip” approach of combining the functional blocks of a multichip digital camera onto a single chip reduces the imaging system’s cost and power. However, it does not fully exploit the potential of in ...
... produce color NTSC video with only an external power supply and a crystal oscillator. This “system-on-chip” approach of combining the functional blocks of a multichip digital camera onto a single chip reduces the imaging system’s cost and power. However, it does not fully exploit the potential of in ...
MAX1082/MAX1083 300ksps/400ksps, Single-Supply, 4-Channel, Serial 10-Bit ADCs with Internal Reference General Description
... Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has been calibrated. Note 3: Offset nulled. Note 4: Ground the “on” channel; sine wave is applied to all “off” channels. Note 5: Conversion time is defined as the number o ...
... Note 2: Relative accuracy is the deviation of the analog value at any code from its theoretical value after the full-scale range has been calibrated. Note 3: Offset nulled. Note 4: Ground the “on” channel; sine wave is applied to all “off” channels. Note 5: Conversion time is defined as the number o ...
Challenges with Multi-Terminal UHVDC Transmissions
... multi-terminal HVDC transmission can be found in the literature [1]-[6]. A bibliography of papers presenting multiterminal HVDC up to 1979 can be found in [4]. However, in practice only the concept with parallel converters has been used as it offers much more flexibility and lower overall transmissi ...
... multi-terminal HVDC transmission can be found in the literature [1]-[6]. A bibliography of papers presenting multiterminal HVDC up to 1979 can be found in [4]. However, in practice only the concept with parallel converters has been used as it offers much more flexibility and lower overall transmissi ...
MAX195 16-Bit, 85ksps ADC with 10µA Shutdown _______________General Description ____________________________Features
... least three clock (CLK) cycles have passed since the end of the previous conversion, a conversion will begin on CLK’s next falling edge and EOC will go high on the following falling CLK edge (Figure 3). If, when convert is asserted, less than three clock cycles have passed, a conversion will begin o ...
... least three clock (CLK) cycles have passed since the end of the previous conversion, a conversion will begin on CLK’s next falling edge and EOC will go high on the following falling CLK edge (Figure 3). If, when convert is asserted, less than three clock cycles have passed, a conversion will begin o ...
DC/DC converter, part 1
... Let vo Vo be held constant at 5 V by controlling the switch duty ratio D. • Calculate the minimum inductance L required to keep the converter operation in a continuous-conduction mode under all conditions if: Vd is 10-40 V , Po 5 W, and fs = 50 kHz. ...
... Let vo Vo be held constant at 5 V by controlling the switch duty ratio D. • Calculate the minimum inductance L required to keep the converter operation in a continuous-conduction mode under all conditions if: Vd is 10-40 V , Po 5 W, and fs = 50 kHz. ...
MAX1080/MAX1081 300ksps/400ksps, Single-Supply, Low-Power, 8-Channel, Serial 10-Bit ADCs with Internal Reference General Description
... and four software-selectable power modes (normal operation, reduced power (REDP), fast power-down (FASTPD), and full power-down (FULLPD)). These devices can be programmed to automatically shut down at the end of a conversion or to operate with reduced power. When using the power-down modes, accessin ...
... and four software-selectable power modes (normal operation, reduced power (REDP), fast power-down (FASTPD), and full power-down (FULLPD)). These devices can be programmed to automatically shut down at the end of a conversion or to operate with reduced power. When using the power-down modes, accessin ...
A Step-Down Conversion Concept for a PWM
... battery lifetime and to reduce the problem of heat dissipation in highly integrated systems [5], [4], [1]. On the other hand, the output voltage of the supply should be kept constant over a wide range of the input voltage provided by one or more battery cells. For example it is assumed that the requ ...
... battery lifetime and to reduce the problem of heat dissipation in highly integrated systems [5], [4], [1]. On the other hand, the output voltage of the supply should be kept constant over a wide range of the input voltage provided by one or more battery cells. For example it is assumed that the requ ...
Spin-lattice and spin-spin relaxation
... In solution the rapid reorientation of the dipolar interaction due to molecular motions provides fluctuating fields. This relaxation mechanism depends on the rate of molecular motion. Thus, T1 is temperature dependent. Molecular dynamics The correlation time τc − the time taken for the (spherical) m ...
... In solution the rapid reorientation of the dipolar interaction due to molecular motions provides fluctuating fields. This relaxation mechanism depends on the rate of molecular motion. Thus, T1 is temperature dependent. Molecular dynamics The correlation time τc − the time taken for the (spherical) m ...
Synthesis and Analysis of a Versatile DC-DC Converter Designed by Using
... as a driver circuit of white LEDs for display backlighting, a building block of battery management systems, and so on. For example, in mobile backlighting applications, the stepped-up voltage such as 4.75 ∼ 6.5 V (Typ. =5 V) is required to drive some LEDs at up to 25 mA. On the other hand, to extend ...
... as a driver circuit of white LEDs for display backlighting, a building block of battery management systems, and so on. For example, in mobile backlighting applications, the stepped-up voltage such as 4.75 ∼ 6.5 V (Typ. =5 V) is required to drive some LEDs at up to 25 mA. On the other hand, to extend ...
MAX1110/MAX1111 +2.7V, Low-Power, Multichannel, Serial 8-Bit ADCs General Description
... and consume only 85µA while sampling at rates up to 50ksps. The MAX1110’s 8 analog inputs and the MAX1111’s 4 analog inputs are software-configurable, allowing unipolar/bipolar and single-ended/differential operation. Successive-approximation conversions are performed using either the internal clock ...
... and consume only 85µA while sampling at rates up to 50ksps. The MAX1110’s 8 analog inputs and the MAX1111’s 4 analog inputs are software-configurable, allowing unipolar/bipolar and single-ended/differential operation. Successive-approximation conversions are performed using either the internal clock ...
Transform Coding #3
... made to 1-D cosines of different frequencies For 2-D DCT… the “comparisons” are made to 2-D cosines of different “mixed” frequencies (horizontal frequency & vertical frequency) ...
... made to 1-D cosines of different frequencies For 2-D DCT… the “comparisons” are made to 2-D cosines of different “mixed” frequencies (horizontal frequency & vertical frequency) ...
Aalborg Universitet Voltages
... should however be noted that B6 converter is not only used as a three-phase converter. It can also operate as a reduced-switch single-phase ac-dc-ac converter [14-16] or a single-phase converter with power ripple decoupling [17-22]. The reduced-switch ac-dc-ac B6 converter was, in fact, proposed in ...
... should however be noted that B6 converter is not only used as a three-phase converter. It can also operate as a reduced-switch single-phase ac-dc-ac converter [14-16] or a single-phase converter with power ripple decoupling [17-22]. The reduced-switch ac-dc-ac B6 converter was, in fact, proposed in ...
Durham Research Online
... factor and precise output voltage and frequency regulation is achieved through appropriate control of these three converters. H-bridge converters can be used in each branch of T to make the proposed converter. The converter is controlled such that the average active power of each H-bridge remains ze ...
... factor and precise output voltage and frequency regulation is achieved through appropriate control of these three converters. H-bridge converters can be used in each branch of T to make the proposed converter. The converter is controlled such that the average active power of each H-bridge remains ze ...
Stable Operation of DC-DC Converters with Power Manage
... The Power/Platform Management device closed loop trim feature is needed in systems utilizing inexpensive DCDC converters to improve the accuracy of their output voltage. The ability of these devices to trim several different supplies at once also decreases the cost but increases the accuracy of the ...
... The Power/Platform Management device closed loop trim feature is needed in systems utilizing inexpensive DCDC converters to improve the accuracy of their output voltage. The ability of these devices to trim several different supplies at once also decreases the cost but increases the accuracy of the ...
5 Data Conversion III - Resolution, Quality and Intelligibility
... As can be heard the quantisation process gives the speech a ‘gravelly’ or ‘gritty’ coarse character. This becomes more pronounced as the quantisation resolution is lowered. It appears to be more perceptible here at higher resolution because it interferes with the natural distinctive quality of the h ...
... As can be heard the quantisation process gives the speech a ‘gravelly’ or ‘gritty’ coarse character. This becomes more pronounced as the quantisation resolution is lowered. It appears to be more perceptible here at higher resolution because it interferes with the natural distinctive quality of the h ...
IOSR Journal of Electronics and Communication Engineering (IOSR-JECE)
... sensors and biomedical implement etc. [1] [2]. There are different types of micro generator or small scale generator such as piezoelectric, electromagnetic, and electrostatic. The output voltage of micro generator is ac type, but almost all the electronic loads require DC voltage for further operati ...
... sensors and biomedical implement etc. [1] [2]. There are different types of micro generator or small scale generator such as piezoelectric, electromagnetic, and electrostatic. The output voltage of micro generator is ac type, but almost all the electronic loads require DC voltage for further operati ...
HMC581LP6E - uri=media.digikey
... The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used ...
... The circuit board used in the final application should use RF circuit design techniques. Signal lines should have 50 ohm impedance while the package ground leads and exposed paddle should be connected directly to the ground plane similar to that shown. A sufficient number of via holes should be used ...
ADC0820 8-Bit High Speed MuP Compatible A/D Converter with
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its specified operating conditions. Note 2: All voltages are measured with respect to the GND pin, unless otherwise specifie ...
... Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications do not apply when operating the device beyond its specified operating conditions. Note 2: All voltages are measured with respect to the GND pin, unless otherwise specifie ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... The conventional boost DC-DC converter can provide a very high voltage gain by using an extreme high duty cycle. The step-up dc-dc converters have been proposed to obtain high voltage ratios without extreme high duty cycle by using isolated transformers or coupled inductors. Among these high step-up ...
... The conventional boost DC-DC converter can provide a very high voltage gain by using an extreme high duty cycle. The step-up dc-dc converters have been proposed to obtain high voltage ratios without extreme high duty cycle by using isolated transformers or coupled inductors. Among these high step-up ...
26.5-40 and 76.5-90 GHz the Multichannel Radiometer - ELVA-1
... The output Video amplifiers (8, Fig. 17) have about 100 times amplification factor and provide 0…+10V output in linear mode of the detector. The IF receiver channels operate at different frequencies. They also have different gain value of conversion of input IF signal to output voltage. So if built- ...
... The output Video amplifiers (8, Fig. 17) have about 100 times amplification factor and provide 0…+10V output in linear mode of the detector. The IF receiver channels operate at different frequencies. They also have different gain value of conversion of input IF signal to output voltage. So if built- ...
AD7484 数据手册DataSheet下载
... approximation ADC. The part features a parallel interface with throughput rates up to 3 MSPS. The part contains a low noise, wide bandwidth track-and-hold that can handle input frequencies in excess of 40 MHz. The conversion process is a proprietary algorithmic successive approximation technique tha ...
... approximation ADC. The part features a parallel interface with throughput rates up to 3 MSPS. The part contains a low noise, wide bandwidth track-and-hold that can handle input frequencies in excess of 40 MHz. The conversion process is a proprietary algorithmic successive approximation technique tha ...
Ultrasound Physics Volume I
... slide, the basic angles between 0 and 90 degrees (inclusively) are shown, but the cosine values are also given in the table for angles greater than 90 degrees. From this table it should be evident that 45 degrees is basically the “same” angle as 135 degrees, 225 degrees, and 315 degrees (not shown), ...
... slide, the basic angles between 0 and 90 degrees (inclusively) are shown, but the cosine values are also given in the table for angles greater than 90 degrees. From this table it should be evident that 45 degrees is basically the “same” angle as 135 degrees, 225 degrees, and 315 degrees (not shown), ...
... structures. Several independent DC power supplies are required, which can be provided either by a transformer with multiple isolated secondaries or by several transformers. For electrical vehicles, batteries or fuel cells can also be used. In order to balance the power provided by the DC voltage sou ...
UMN-AML-TR-00-02 - Department of Mechanical Engineering
... Scouts are cylindrical in shape with an outer diameter of 40 mm and length of 110 mm. The wheels at both ends are turned independently by small dc motors for mobility. A small spring arm protrudes from the side and can be wrapped around the cylindrical shell by a separate winch mechanism controlled ...
... Scouts are cylindrical in shape with an outer diameter of 40 mm and length of 110 mm. The wheels at both ends are turned independently by small dc motors for mobility. A small spring arm protrudes from the side and can be wrapped around the cylindrical shell by a separate winch mechanism controlled ...