Low-Cost Current-Fed PMSM Drive System With Sinusoidal Input
... small LC input filter easily absorbs the high-frequency harmonics injected into the ac mains by the rectifier switching action. It should be noted that ...
... small LC input filter easily absorbs the high-frequency harmonics injected into the ac mains by the rectifier switching action. It should be noted that ...
PAM2307 Description Pin Assignments
... The PAM2307 supports a range of input voltages from 2.7V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/ NiMH cell,and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage. The PAM2307 employs internal power switch and synchronou ...
... The PAM2307 supports a range of input voltages from 2.7V to 5.5V, allowing the use of a single Li+/Li-polymer cell, multiple Alkaline/ NiMH cell,and other standard power sources. The output voltage is adjustable from 0.6V to the input voltage. The PAM2307 employs internal power switch and synchronou ...
UM0920
... used for feedback regulation. The main benefit of this solution is the connection of the source of the VIPer16 to -5 V. This allows direct sensing of -5 V from the output and simplifies the circuit. Another benefit of this method is the possibility to supply the VIPer16 from 12 V secondary winding ( ...
... used for feedback regulation. The main benefit of this solution is the connection of the source of the VIPer16 to -5 V. This allows direct sensing of -5 V from the output and simplifies the circuit. Another benefit of this method is the possibility to supply the VIPer16 from 12 V secondary winding ( ...
A balancing and monitoring system for battery cell stacks in
... the automotive type of business. Electrical motors are far more energy efficient than conventional combustion engines running on petrol or diesel. The high price on oil as well as the awareness of environmental consequences of carbon dioxide emissions has forced the automotive manufactures to look a ...
... the automotive type of business. Electrical motors are far more energy efficient than conventional combustion engines running on petrol or diesel. The high price on oil as well as the awareness of environmental consequences of carbon dioxide emissions has forced the automotive manufactures to look a ...
OHM`S LAW AND KIRCHHOFF`S CIRCUIT RULES
... current divides among the branches so that the total current through the battery equals the sum of the currents in each branch. You have also observed that when two or more parallel branches are connected directly across a battery, making a change in one branch does not affect the current in the oth ...
... current divides among the branches so that the total current through the battery equals the sum of the currents in each branch. You have also observed that when two or more parallel branches are connected directly across a battery, making a change in one branch does not affect the current in the oth ...
TPS2838 数据资料 dataSheet 下载
... Schottky diode minimizes the size and number of external components needed for the bootstrap driver circuit. Only one external ceramic capacitor is required to configure the bootstrap driver. ...
... Schottky diode minimizes the size and number of external components needed for the bootstrap driver circuit. Only one external ceramic capacitor is required to configure the bootstrap driver. ...
DS4432 Dual-Channel, I C, 7-Bit Sink/Source Current DAC
... the DS4432 provides a simple and inexpensive current DAC with an I2C interface for control. The adjustable full-scale range allows the application to get the most out of its 7-bit sink or source resolution. When used in adjustable power-supply applications (see the Typical Operating Circuit), the DS ...
... the DS4432 provides a simple and inexpensive current DAC with an I2C interface for control. The adjustable full-scale range allows the application to get the most out of its 7-bit sink or source resolution. When used in adjustable power-supply applications (see the Typical Operating Circuit), the DS ...
MÉTODO DE CORREÇÃO PARA ENSAIOS ELÉTRICOS EM
... By beginning the test, the temperature on top of the oil and at least three ambient temperatures must be measured, with thermometers placed around the transformer so that, at regular time intervals, the operator notes down the temperature values, checks if the total losses value is correct and calcu ...
... By beginning the test, the temperature on top of the oil and at least three ambient temperatures must be measured, with thermometers placed around the transformer so that, at regular time intervals, the operator notes down the temperature values, checks if the total losses value is correct and calcu ...
LT1168 - Low Power, Single Resistor Gain Programmable, Precision Instrumentation Amplifier
... nonlinearity and 0.4% max gain error (G = 10). Previous monolithic instrumentation amps cannot handle a 2k load resistor whereas the nonlinearity of the LT1168 is specified for loads as low as 2k. The LT1168 is laser trimmed for very low input offset voltage (40µV max), drift (0.3µV/°C), high CMRR ( ...
... nonlinearity and 0.4% max gain error (G = 10). Previous monolithic instrumentation amps cannot handle a 2k load resistor whereas the nonlinearity of the LT1168 is specified for loads as low as 2k. The LT1168 is laser trimmed for very low input offset voltage (40µV max), drift (0.3µV/°C), high CMRR ( ...
Sample Investigation
... 1. Measure and compare current at different points in a circuit. 2. Compare current in circuits with one and two bulbs. Why does a bulb light? When you put a battery in a circuit, electric current flows through the wires and makes things happen. The current carries energy from the battery to a bulb ...
... 1. Measure and compare current at different points in a circuit. 2. Compare current in circuits with one and two bulbs. Why does a bulb light? When you put a battery in a circuit, electric current flows through the wires and makes things happen. The current carries energy from the battery to a bulb ...
A. Design for Dual-/Multi
... The output voltage of their work for -20 dBm input power is less than 1V. Umeda et al. designed distributor circuits to supply bias voltages for MOSFET-connected diodes to more easily turn on the diodes and thus obtain higher charging current for low input power which achieves 0.75% efficiency for - ...
... The output voltage of their work for -20 dBm input power is less than 1V. Umeda et al. designed distributor circuits to supply bias voltages for MOSFET-connected diodes to more easily turn on the diodes and thus obtain higher charging current for low input power which achieves 0.75% efficiency for - ...
PDF
... temperature monitoring with a thermistor on the base plate, it gives a higher accuracy and linear output in the normal to high temperature range, which is advantageous for IPM protection, adjustment of inverter load and other controls. The DC-Link voltage monitoring function provides an analog outpu ...
... temperature monitoring with a thermistor on the base plate, it gives a higher accuracy and linear output in the normal to high temperature range, which is advantageous for IPM protection, adjustment of inverter load and other controls. The DC-Link voltage monitoring function provides an analog outpu ...
Full Article
... The positive output Relift LUO converter gives the voltage gain interms of arithmetic progression instead of geometric progression of conventional Dc to Dc converters. The main objective is to reach high efficiency, high power density and cheap topology in a simple structure. Due to the effect of pa ...
... The positive output Relift LUO converter gives the voltage gain interms of arithmetic progression instead of geometric progression of conventional Dc to Dc converters. The main objective is to reach high efficiency, high power density and cheap topology in a simple structure. Due to the effect of pa ...
LMV761, LMV762/Q - Texas Instruments
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
... Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only, which do not imply functional operation of the device at these or any other conditions beyond those indicated under Recommended Operating Conditions. Exposure to absol ...
DISCUSSION Pontifical Catholic University Rio Grande do
... Fig. 02 – Circuit diagram of a conventional series-resonant parallel load electronic ballast. ...
... Fig. 02 – Circuit diagram of a conventional series-resonant parallel load electronic ballast. ...
TPS70175-Q1 数据资料 dataSheet 下载
... enabled and the SEQ terminal is pulled high or left open, VOUT2 turns on first and VOUT1 remains off until VOUT2 reaches approximately 83% of its regulated output voltage. At that time VOUT1 is turned on. If VOUT2 is pulled below 83% (for example, an overload condition), VOUT1 is turned off. Pulling ...
... enabled and the SEQ terminal is pulled high or left open, VOUT2 turns on first and VOUT1 remains off until VOUT2 reaches approximately 83% of its regulated output voltage. At that time VOUT1 is turned on. If VOUT2 is pulled below 83% (for example, an overload condition), VOUT1 is turned off. Pulling ...
Resistive opto-isolator
Resistive opto-isolator (RO), also called photoresistive opto-isolator, vactrol (after a genericized trademark introduced by Vactec, Inc. in the 1960s), analog opto-isolator or lamp-coupled photocell, is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.Electrically, RO is a resistance controlled by the current flowing through the light source. In the dark state, the resistance typically exceeds a few MOhm; when illuminated, it decreases as the inverse of the light intensity. In contrast to the photodiode and phototransistor, the photoresistor can operate in both the AC and DC circuits and have a voltage of several hundred volts across it. The harmonic distortions of the output current by the RO are typically within 0.1% at voltages below 0.5 V.RO is the first and the slowest opto-isolator: its switching time exceeds 1 ms, and for the lamp-based models can reach hundreds of milliseconds. Parasitic capacitance limits the frequency range of the photoresistor by ultrasonic frequencies. Cadmium-based photoresistors exhibit a ""memory effect"": their resistance depends on the illumination history; it also drifts during the illumination and stabilizes within hours, or even weeks for high-sensitivity models. Heating induces irreversible degradation of ROs, whereas cooling to below −25 °C dramatically increases the response time. Therefore, ROs were mostly replaced in the 1970s by the faster and more stable photodiodes and photoresistors. ROs are still used in some sound equipment, guitar amplifiers and analog synthesizers owing to their good electrical isolation, low signal distortion and ease of circuit design.