- IEEE Mentor
... load data may be limited; therefore, some loads, such as lighting and air conditioning, may be estimated from generalized data. The majority of industrial plant loads are a function of the process equipment, and such information will have to be obtained from process and equipment designers. Since th ...
... load data may be limited; therefore, some loads, such as lighting and air conditioning, may be estimated from generalized data. The majority of industrial plant loads are a function of the process equipment, and such information will have to be obtained from process and equipment designers. Since th ...
COMPARISON OF LINEAR AND SWITCHING DRIVE AMPLIFIERS
... commercially available). The main difference with Amplifier 1 is that this is a high-voltage power amplifier with an available voltage range of 0 to 750 V (see Table 1). Very similar to Amplifier 1, it contains a rectifying circuit to adapt the standard AC electrical network to DC signal, which driv ...
... commercially available). The main difference with Amplifier 1 is that this is a high-voltage power amplifier with an available voltage range of 0 to 750 V (see Table 1). Very similar to Amplifier 1, it contains a rectifying circuit to adapt the standard AC electrical network to DC signal, which driv ...
700-mW Low-Voltage Audio Power Amplifier
... The TPA701 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA701 can deliver 250-mW of continuous power into a BTL 8-Ω load at less than 0.6% THD+N throughout voice band freq ...
... The TPA701 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA701 can deliver 250-mW of continuous power into a BTL 8-Ω load at less than 0.6% THD+N throughout voice band freq ...
AUTOMATIC TRANSFER SWITCHES (ATS) IN CRITICAL
... which would otherwise cause loss of power to the load will be neutralized. The intent of providing an ATS in critical power circuits is to eliminate single failures that would cause loss of power to the load. Eliminating the potential for these two types of internal ATS failure-modes significantly r ...
... which would otherwise cause loss of power to the load will be neutralized. The intent of providing an ATS in critical power circuits is to eliminate single failures that would cause loss of power to the load. Eliminating the potential for these two types of internal ATS failure-modes significantly r ...
700-mW Low-Voltage Audio Power Amplifier
... The TPA701 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA701 can deliver 250-mW of continuous power into a BTL 8-Ω load at less than 0.6% THD+N throughout voice band freq ...
... The TPA701 is a bridge-tied load (BTL) audio power amplifier developed especially for low-voltage applications where internal speakers are required. Operating with a 3.3-V supply, the TPA701 can deliver 250-mW of continuous power into a BTL 8-Ω load at less than 0.6% THD+N throughout voice band freq ...
5W, Qi Wireless Power Receiver with Integrated Rectifier and LDO
... signal by rectifying the AC power from the transmitter and storing it on a capacitor connected to VRECT. During the "ping" phase, the rectifier provides about 5V at the VRECT pin. An internal linear voltage regulator provides the supply voltage for the digital section to enable WPC communication. To ...
... signal by rectifying the AC power from the transmitter and storing it on a capacitor connected to VRECT. During the "ping" phase, the rectifier provides about 5V at the VRECT pin. An internal linear voltage regulator provides the supply voltage for the digital section to enable WPC communication. To ...
... Q1 and Q2 are MOSFETs or IGBTs, L1 and L2 are interleaved boost inductances, D1 and D2 are interleaved boost diodes, C0 is an output capacitor, RL is an output load resistance, iL is a sum of the inductor currents, vac is an absolute value of the input AC voltage and vo is an output voltage. The ind ...
Parasitic Inductance Effect on Switching Losses for a High
... across the parasitic inductances LS and LD . A current flow through the capacitance CGD is produced. This current flow restrains the rate of decrease of the gate voltage, which in turn restrains the original rate of change of drain current. The gate to source voltage during this period is given by ( ...
... across the parasitic inductances LS and LD . A current flow through the capacitance CGD is produced. This current flow restrains the rate of decrease of the gate voltage, which in turn restrains the original rate of change of drain current. The gate to source voltage during this period is given by ( ...
LTC1757A-1/LTC1757A-2 - Single/Dual Band RF Power Controllers.
... The LTC1757A-2 dual band RF power control amplifier integrates several functions to provide RF power control over two frequencies ranging from 850MHz to 2GHz. The device also prevents damage to the RF power amplifier due to overvoltage or overcurrent conditions. These functions include an internally ...
... The LTC1757A-2 dual band RF power control amplifier integrates several functions to provide RF power control over two frequencies ranging from 850MHz to 2GHz. The device also prevents damage to the RF power amplifier due to overvoltage or overcurrent conditions. These functions include an internally ...
Basic RF Technic and Laboratory Manual
... The measurement of power in RF and microwave applications has the same significance as voltage measurements in electrical engineering. Power meters are used for a wide variety of measurement tasks. In comparison with spectrum or network analyzers, they are relatively cheap and unsophisticated instru ...
... The measurement of power in RF and microwave applications has the same significance as voltage measurements in electrical engineering. Power meters are used for a wide variety of measurement tasks. In comparison with spectrum or network analyzers, they are relatively cheap and unsophisticated instru ...
74C Family Characteristics
... with the term arising from the internal capacitance, a capacitance CPD may be defined which closely approximates the no load power consumption for a CMOS device when used in the following expression: Power (no load) = CPD VCC2 f The total power consumption is then simplified to: Total Power = (CPD + ...
... with the term arising from the internal capacitance, a capacitance CPD may be defined which closely approximates the no load power consumption for a CMOS device when used in the following expression: Power (no load) = CPD VCC2 f The total power consumption is then simplified to: Total Power = (CPD + ...
Power Amplifiers - University of Michigan
... The computed transistor currents are plotted below. The Q1 collector current is constant as expected at 89ma (compared to 93ma estimated). In the simplified model the Q2 collector current would be the same as the Q1 current. However this ignores the Early effect. Because of this effect there is a so ...
... The computed transistor currents are plotted below. The Q1 collector current is constant as expected at 89ma (compared to 93ma estimated). In the simplified model the Q2 collector current would be the same as the Q1 current. However this ignores the Early effect. Because of this effect there is a so ...
Power factor
In electrical engineering, the power factor of an AC electrical power system is defined as the ratio of the real power flowing to the load to the apparent power in the circuit, and is a dimensionless number in the closed interval of -1 to 1. A power factor of less than one means that the voltage and current waveforms are not in phase, reducing the instantaneous product of the two waveforms (V x I). Real power is the capacity of the circuit for performing work in a particular time. Apparent power is the product of the current and voltage of the circuit. Due to energy stored in the load and returned to the source, or due to a non-linear load that distorts the wave shape of the current drawn from the source, the apparent power will be greater than the real power. A negative power factor occurs when the device (which is normally the load) generates power, which then flows back towards the source, which is normally considered the generator.In an electric power system, a load with a low power factor draws more current than a load with a high power factor for the same amount of useful power transferred. The higher currents increase the energy lost in the distribution system, and require larger wires and other equipment. Because of the costs of larger equipment and wasted energy, electrical utilities will usually charge a higher cost to industrial or commercial customers where there is a low power factor.Linear loads with low power factor (such as induction motors) can be corrected with a passive network of capacitors or inductors. Non-linear loads, such as rectifiers, distort the current drawn from the system. In such cases, active or passive power factor correction may be used to counteract the distortion and raise the power factor. The devices for correction of the power factor may be at a central substation, spread out over a distribution system, or built into power-consuming equipment.