Power Supply Theory of Operation
... voltage across the T1 primary reverses polarity when Q1 turns "OFF". The end of T1 identified with an "A" try to swing negative. If this is allowed to go too far, it could cause Q1 to fail. D1 will hold this point to one diode drop above ground, effectively limiting the voltage at the collector of Q1 ...
... voltage across the T1 primary reverses polarity when Q1 turns "OFF". The end of T1 identified with an "A" try to swing negative. If this is allowed to go too far, it could cause Q1 to fail. D1 will hold this point to one diode drop above ground, effectively limiting the voltage at the collector of Q1 ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... topologies were presented based on a switched-capacitor cell concept in which a soft-switched scheme was used to reduce the switching loss and electromagnetic interference [8]. The coupled inductor-based converters are another solution to implement high step-up gain because the turns ratio of the co ...
... topologies were presented based on a switched-capacitor cell concept in which a soft-switched scheme was used to reduce the switching loss and electromagnetic interference [8]. The coupled inductor-based converters are another solution to implement high step-up gain because the turns ratio of the co ...
2.7 V To 5.5 V 8-Channel 10-Bit 1.25-MSPS Serial Analog-to
... The TLV1570 is a 10-bit data acquisition system that combines an 8-channel input multiplexer (MUX), a high-speed 10-bit ADC, an on-chip reference, and a high-speed serial interface. The device contains an on-chip control register allowing control of channel selection, conversion start, reference vol ...
... The TLV1570 is a 10-bit data acquisition system that combines an 8-channel input multiplexer (MUX), a high-speed 10-bit ADC, an on-chip reference, and a high-speed serial interface. The device contains an on-chip control register allowing control of channel selection, conversion start, reference vol ...
AD7671 数据手册DataSheet下载
... The AD7671 is a 16-bit, 1 MSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains a high speed 16-bit sampling ADC, a resistor input scaler that allows various input ranges, an internal conversion clock, error correction circuits, and bo ...
... The AD7671 is a 16-bit, 1 MSPS, charge redistribution SAR, analog-to-digital converter that operates from a single 5 V power supply. It contains a high speed 16-bit sampling ADC, a resistor input scaler that allows various input ranges, an internal conversion clock, error correction circuits, and bo ...
Aalborg Universitet Plant Leaf Imaging using Time of Flight Camera
... optimal calibration for outdoor conditions will not be suitable for indoor applications and if used, will have integration time related errors [2]. For CamBoard, we have found the flag matrix obtained through the manufacturer’s API very useful in this regard. We use the flag matrix to find pixels ma ...
... optimal calibration for outdoor conditions will not be suitable for indoor applications and if used, will have integration time related errors [2]. For CamBoard, we have found the flag matrix obtained through the manufacturer’s API very useful in this regard. We use the flag matrix to find pixels ma ...
AD7490 数据手册DataSheet下载
... Guaranteed by characterization. All input signals are specified with tR = tF = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V (see Figure 2). The 3 V operating range spans from 2.7 V to 3.6 V. The 5 V operating range spans from 4.75 V to 5.25 V. The mark/space ratio for the SCLK in ...
... Guaranteed by characterization. All input signals are specified with tR = tF = 5 ns (10% to 90% of VDD) and timed from a voltage level of 1.6 V (see Figure 2). The 3 V operating range spans from 2.7 V to 3.6 V. The 5 V operating range spans from 4.75 V to 5.25 V. The mark/space ratio for the SCLK in ...
basic electrical circuits
... It is a workbook that utilizes programmed instruction. The numbered "frames" present information and/or a question about presented information. You should work through the frames in the order presented. Answer each question that is presented. To check your answers, go to the shaded box of the NEXT f ...
... It is a workbook that utilizes programmed instruction. The numbered "frames" present information and/or a question about presented information. You should work through the frames in the order presented. Answer each question that is presented. To check your answers, go to the shaded box of the NEXT f ...
AN1326, Barometric Pressure Measurement Using
... pressure must be measured with respect to a known reference pressure, preferably absolute zero pressure (vacuum). The device should also produce a stable output over the entire operating temperature range. The desired sensor for this application is a temperature compensated and calibrated, semicondu ...
... pressure must be measured with respect to a known reference pressure, preferably absolute zero pressure (vacuum). The device should also produce a stable output over the entire operating temperature range. The desired sensor for this application is a temperature compensated and calibrated, semicondu ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... power supply. Operation of the switching devices causes the inherently nonlinear characteristic of the BuckBoost converters. Due to this unwanted nonlinear characteristics, the converters requires a controller with a high degree of dynamic response. Recently, the research on the switching control te ...
... power supply. Operation of the switching devices causes the inherently nonlinear characteristic of the BuckBoost converters. Due to this unwanted nonlinear characteristics, the converters requires a controller with a high degree of dynamic response. Recently, the research on the switching control te ...
"The design of sigma-delta modulation analog-to-digital converters,"
... modulator. The analog input signal x ( t ) is sampled at the illustrate the fundamental trade-offs necessary in the desampling frequency f , =1/T. A quantizer with only two sign process. The approach taken here is based on the use levels at f A/2 is employed so as to avoid the harmonic of a custom s ...
... modulator. The analog input signal x ( t ) is sampled at the illustrate the fundamental trade-offs necessary in the desampling frequency f , =1/T. A quantizer with only two sign process. The approach taken here is based on the use levels at f A/2 is employed so as to avoid the harmonic of a custom s ...
June 2008 DRAFT - submitted to JSSC for review.
... those transistors is replaced with two separate inverters, with the same total transistor sizes as the original single driver. To implement a delay for the ZVS dead-time, the gate of M1 is connected to Vclk instead of being connected to the gate of M2. Therefore, compared to Vp, the rising edge of V ...
... those transistors is replaced with two separate inverters, with the same total transistor sizes as the original single driver. To implement a delay for the ZVS dead-time, the gate of M1 is connected to Vclk instead of being connected to the gate of M2. Therefore, compared to Vp, the rising edge of V ...
Design Methodology for Transformers Including Integrated
... PExprt, electromagnetic field simulator, Maxwell, and the circuit simulator, PSIM is used to evaluate the expected effects in the transformer and converter operation. Fig. 9 (a) shows the magnetic flux and current density of the conductors near the air-gap. Eddy current is concentrated on the air-ga ...
... PExprt, electromagnetic field simulator, Maxwell, and the circuit simulator, PSIM is used to evaluate the expected effects in the transformer and converter operation. Fig. 9 (a) shows the magnetic flux and current density of the conductors near the air-gap. Eddy current is concentrated on the air-ga ...
Plant Leaf Imaging using Time of Flight Camera under Sunlight
... optimal calibration for outdoor conditions will not be suitable for indoor applications and if used, will have integration time related errors [2]. For CamBoard, we have found the flag matrix obtained through the manufacturer’s API very useful in this regard. We use the flag matrix to find pixels ma ...
... optimal calibration for outdoor conditions will not be suitable for indoor applications and if used, will have integration time related errors [2]. For CamBoard, we have found the flag matrix obtained through the manufacturer’s API very useful in this regard. We use the flag matrix to find pixels ma ...
70 MHz AND 140 MHz IF TO IF FREQUENCY CONVERTERS
... Relative humidity.............................................. Up to 95% at 40°C Atmospheric pressure ...................................... Up to 40,000 feet Shock and vibration.......................................... Normal handling by commercial carriers ...
... Relative humidity.............................................. Up to 95% at 40°C Atmospheric pressure ...................................... Up to 40,000 feet Shock and vibration.......................................... Normal handling by commercial carriers ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE) e-ISSN: 2278-1676,p-ISSN: 2320-3331,
... the voltage ripple acceptable. This makes the converter response very slow; the control of the converter also requires input line polarity sensing adding further complexity. Since the output dc bus is split into two series connected capacitors and each of these capacitors is charged only for one hal ...
... the voltage ripple acceptable. This makes the converter response very slow; the control of the converter also requires input line polarity sensing adding further complexity. Since the output dc bus is split into two series connected capacitors and each of these capacitors is charged only for one hal ...
MAX1117/MAX1118/MAX1119 Single-Supply, Low-Power, 2-Channel, Serial 8-Bit ADCs General Description
... interface. The CNVST and SCLK inputs are used to control the device, while the three-state DOUT pin is used to access the conversion results. The serial interface provides connection to microcontrollers (µCs) with SPI, QSPI, and MICROWIRE serial interfaces at clock rates up to 5MHz. The interface su ...
... interface. The CNVST and SCLK inputs are used to control the device, while the three-state DOUT pin is used to access the conversion results. The serial interface provides connection to microcontrollers (µCs) with SPI, QSPI, and MICROWIRE serial interfaces at clock rates up to 5MHz. The interface su ...
A 12-Bit High-Speed Column-Parallel Two-Step Single
... disadvantage of low conversion speed. Each n-bit conversion requires 2n clock periods. Although high-speed SS ADCs have been recently reported [5], they use very high clock frequency which in turn leads to high power consumption. To solve the problem of low speed, two-step SS ADCs have been recently ...
... disadvantage of low conversion speed. Each n-bit conversion requires 2n clock periods. Although high-speed SS ADCs have been recently reported [5], they use very high clock frequency which in turn leads to high power consumption. To solve the problem of low speed, two-step SS ADCs have been recently ...
DAC FOR HIGH SPEED AND LOW POWER
... same. So the complexity and area will be reduced. The 8-bit Abacus resistor DAC requires 12 resistors and 24 switches. The 8-bit resistor-string DAC requires 255 resistors and 256 switches. The most important advantages are that the numbers of both resistors and switches are all reduced effectively. ...
... same. So the complexity and area will be reduced. The 8-bit Abacus resistor DAC requires 12 resistors and 24 switches. The 8-bit resistor-string DAC requires 255 resistors and 256 switches. The most important advantages are that the numbers of both resistors and switches are all reduced effectively. ...
Document
... adequately in textbooks [56]. Figure 3-19a indicates the generic structure of the current-fed AC-DC-AC converters. In industrial and traction applications these current-fed AC-DC-AC converters are robust in operation and reliable due to the insensitivity to short circuits and a noisy environment. Ho ...
... adequately in textbooks [56]. Figure 3-19a indicates the generic structure of the current-fed AC-DC-AC converters. In industrial and traction applications these current-fed AC-DC-AC converters are robust in operation and reliable due to the insensitivity to short circuits and a noisy environment. Ho ...
Level Conversion for Dual-Supply Systems
... SSLC has been recently proposed in order to eliminate the layout placement restrictions of the level converter [12]. The performance comparison between these two asynchronous level converters will be discussed in Section III-B. The half-latch topology contains small number of transistors and is a pr ...
... SSLC has been recently proposed in order to eliminate the layout placement restrictions of the level converter [12]. The performance comparison between these two asynchronous level converters will be discussed in Section III-B. The half-latch topology contains small number of transistors and is a pr ...
AD7453 数据手册DataSheet下载
... Analog Ground. Ground reference point for all circuitry on the AD7453. All analog input signals and any external reference signal should be referred to this GND voltage. Chip Select. Active low logic input. This input provides the dual function of initiating a conversion on the AD7453 and framing th ...
... Analog Ground. Ground reference point for all circuitry on the AD7453. All analog input signals and any external reference signal should be referred to this GND voltage. Chip Select. Active low logic input. This input provides the dual function of initiating a conversion on the AD7453 and framing th ...
MAX186/MAX188 Low-Power, 8-Channel, Serial 12-Bit ADCs General Description
... Note 1: Tested at VDD = 5.0V; VSS = 0V; unipolar input mode. 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: MAX186 – internal reference, offset nulled; MAX188 – external reference (VREF = + ...
... Note 1: Tested at VDD = 5.0V; VSS = 0V; unipolar input mode. 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: MAX186 – internal reference, offset nulled; MAX188 – external reference (VREF = + ...
AD7453 Pseudo Differential, 555 kSPS 12-Bit ADC in an 8
... Analog Ground. Ground reference point for all circuitry on the AD7453. All analog input signals and any external reference signal should be referred to this GND voltage. Chip Select. Active low logic input. This input provides the dual function of initiating a conversion on the AD7453 and framing th ...
... Analog Ground. Ground reference point for all circuitry on the AD7453. All analog input signals and any external reference signal should be referred to this GND voltage. Chip Select. Active low logic input. This input provides the dual function of initiating a conversion on the AD7453 and framing th ...
Buck Boost Converter Seminar Report.pdf
... The main design of buck converter is simply understood by making a relation between the voltage and current of inductor . When the switch is in open condition (in the "off" position), the current flowing in the circuit is zero. Firstly when the switch is in close position, increase in current appear ...
... The main design of buck converter is simply understood by making a relation between the voltage and current of inductor . When the switch is in open condition (in the "off" position), the current flowing in the circuit is zero. Firstly when the switch is in close position, increase in current appear ...
a LC MOS 4-Channel, 12-Bit Simultaneous Sampling Data Acquisition System
... is first performed on the Channel 1 input voltage, then Channel 2 is converted and so on. The four results are stored in on-chip registers. When all four conversions have been completed, INT goes low indicating that data can be read from these locations. The conversion sequence takes either 78 or 79 ...
... is first performed on the Channel 1 input voltage, then Channel 2 is converted and so on. The four results are stored in on-chip registers. When all four conversions have been completed, INT goes low indicating that data can be read from these locations. The conversion sequence takes either 78 or 79 ...