U-132 Power Factor Correction Using UC3852
... instantaneous input line voltage. Generally, the PFC converter is designed to operate above the audible range after accommodating all circuit and component tolerances. Many applications can use thirty kiloHertz (30 kHz) as a good first approximation. Higher frequency operation should also be evaluat ...
... instantaneous input line voltage. Generally, the PFC converter is designed to operate above the audible range after accommodating all circuit and component tolerances. Many applications can use thirty kiloHertz (30 kHz) as a good first approximation. Higher frequency operation should also be evaluat ...
ac generator theory - Pole Shift Survival Information
... http://www.tpub.com/doeelecscience/electricalscience2136.htm (1 of 3) [12/31/2005 1:56:47 PM] ...
... http://www.tpub.com/doeelecscience/electricalscience2136.htm (1 of 3) [12/31/2005 1:56:47 PM] ...
Does R6 need to be a 1210
... 12V is a small portion of the 357.8V charging VCC, the current charging the VCC capacitor can be considered as a linear current. IT = CV 5.52mA(T) = 68uF(12V) T = 68u(12)/5.52m = 0.816m/5.52m = 148m seconds to charge the VCC capacitor at startup. = 148m seconds power is dissipated in R9 and R10 Tabl ...
... 12V is a small portion of the 357.8V charging VCC, the current charging the VCC capacitor can be considered as a linear current. IT = CV 5.52mA(T) = 68uF(12V) T = 68u(12)/5.52m = 0.816m/5.52m = 148m seconds to charge the VCC capacitor at startup. = 148m seconds power is dissipated in R9 and R10 Tabl ...
Designing Flyback Converters Using Peak-Current-Mode
... MAX17595 quiescent current, TSS is the soft-start time, VOUT is the output voltage, C OUT is the output capacitor used, and Q G is the gate charge of the primary n-channel MOSFET. The bias winding configuration is not needed in low-voltage DC-DC applications where the input voltage can be directly u ...
... MAX17595 quiescent current, TSS is the soft-start time, VOUT is the output voltage, C OUT is the output capacitor used, and Q G is the gate charge of the primary n-channel MOSFET. The bias winding configuration is not needed in low-voltage DC-DC applications where the input voltage can be directly u ...
2. - AIUB Solution
... Transistors are sensitive to be damaged by electrical overloads, heat, humidity, and radiation. Damage of this nature often occurs by applying the incorrect polarity voltage to the collector circuit or excessive voltage to the input circuit. One of the most frequent causes of damage to a transistor ...
... Transistors are sensitive to be damaged by electrical overloads, heat, humidity, and radiation. Damage of this nature often occurs by applying the incorrect polarity voltage to the collector circuit or excessive voltage to the input circuit. One of the most frequent causes of damage to a transistor ...
MP4459 – 1.5A, 4MHz, 36V STEP
... For example, for a 3.3V output voltage, R2 is 40.2kΩ, and R1 is 127kΩ. Inductor The inductor is required to supply constant current to the output load while being driven by the switched input voltage. A larger value inductor will result in less ripple current that will result in lower output ripple ...
... For example, for a 3.3V output voltage, R2 is 40.2kΩ, and R1 is 127kΩ. Inductor The inductor is required to supply constant current to the output load while being driven by the switched input voltage. A larger value inductor will result in less ripple current that will result in lower output ripple ...
AP1603 STEP-UP DC/DC CONVERTER Description
... through the diode to the output capacitor and load. As the stored energy is depleted, the current ramp down until the diode turns off. At this point, inductor may ring due to residual energy and stray capacitance. The output capacitor stores charge when current flow through the diode is high, and re ...
... through the diode to the output capacitor and load. As the stored energy is depleted, the current ramp down until the diode turns off. At this point, inductor may ring due to residual energy and stray capacitance. The output capacitor stores charge when current flow through the diode is high, and re ...
Decibel notes
... The gain of an amplifier can also be expressed as a ratio of Voltage Out divided by Voltage In. Since there is a direct relationship between Watts (Power) and Voltage (or Current), the voltage (or current) gain can also be expressed in dB. dB Gain = 20 Log (Voltage Out / Voltage In) Note: The above ...
... The gain of an amplifier can also be expressed as a ratio of Voltage Out divided by Voltage In. Since there is a direct relationship between Watts (Power) and Voltage (or Current), the voltage (or current) gain can also be expressed in dB. dB Gain = 20 Log (Voltage Out / Voltage In) Note: The above ...
LA 35-NP
... Very good linearity Low temperature drift Optimized response time Wide frequency bandwidth No insertion losses High immunity to external interference • Current overload capability. ...
... Very good linearity Low temperature drift Optimized response time Wide frequency bandwidth No insertion losses High immunity to external interference • Current overload capability. ...
Module: Analysis of DC/DC Converter in a PEM Fuel Cell Application
... Homework Problem Statement: A DC/DC converter takes fuel cell output at 200 A load and converts at 88% efficiency to 300 V for an electric motor. Consider the operation of a proton exchange membrane fuel cell which acts as a battery at an unknown voltage and current in a DC circuit. This fuel cell ...
... Homework Problem Statement: A DC/DC converter takes fuel cell output at 200 A load and converts at 88% efficiency to 300 V for an electric motor. Consider the operation of a proton exchange membrane fuel cell which acts as a battery at an unknown voltage and current in a DC circuit. This fuel cell ...
Self Switching Power Supply
... This circuit is used in different electronic circuits, electronic equipment's. This circuits is used for damage less uses. By this circuit we can produces various voltages. It can be used as supply voltage for different electronic equipment's. ...
... This circuit is used in different electronic circuits, electronic equipment's. This circuits is used for damage less uses. By this circuit we can produces various voltages. It can be used as supply voltage for different electronic equipment's. ...
B-138 Series, Rated up to 60 Amps, 115/200 VAC, 400... HARTMAN Power Switching AC Contactors Product Facts
... All Circuits to Ground — 1,500 Vrms Circuit to Circuit — 1,500 Vrms Coil to Ground and Aux. Contacts — ...
... All Circuits to Ground — 1,500 Vrms Circuit to Circuit — 1,500 Vrms Coil to Ground and Aux. Contacts — ...
International Journal of Electrical, Electronics and
... Since the steady state assumes no net capacitor voltage rise ,the net current is zero. [24-25]The relations between output and input currents and voltages are given in the following: (Vo/Vin)= -(D/1-D)-----(3) (Io/ I in)= -(D/1-D)-----(4) D-duty cycle Thus the voltage ratio is the same as the buck-b ...
... Since the steady state assumes no net capacitor voltage rise ,the net current is zero. [24-25]The relations between output and input currents and voltages are given in the following: (Vo/Vin)= -(D/1-D)-----(3) (Io/ I in)= -(D/1-D)-----(4) D-duty cycle Thus the voltage ratio is the same as the buck-b ...
4. Anti-Interference Equipment – Input Filters
... cable. Therefore the motor behaves as open end of cable. If the cable were lossless, the voltage at the point would be given as sum of all reflected waves. The situation can be seen in Fig. 5. ...
... cable. Therefore the motor behaves as open end of cable. If the cable were lossless, the voltage at the point would be given as sum of all reflected waves. The situation can be seen in Fig. 5. ...
Annex A (IEEE_1246).
... When an object in contact with the earth or a grounded object comes into contact with the deenergized conductor, the circuit is as shown in Figure A.2. Before contact is made with the floating conductor, the voltage on the conductor will be elevated due to the electric field of the energized conduct ...
... When an object in contact with the earth or a grounded object comes into contact with the deenergized conductor, the circuit is as shown in Figure A.2. Before contact is made with the floating conductor, the voltage on the conductor will be elevated due to the electric field of the energized conduct ...
Chapter 1 Fundamental Knowledge
... Linear Resistor: The resistance of the idea resistor is constant and its value does not vary over time. The relation between voltage and current.(VAR) v ...
... Linear Resistor: The resistance of the idea resistor is constant and its value does not vary over time. The relation between voltage and current.(VAR) v ...
High voltage power supplies - Advanced Test Equipment Rentals
... voltage into high voltage. (All high voltage section components in the HV section and shielded.) The output voltage (V) and current (I) are sensed and fedback to high gain compensation circuitry where they are compared to the programmed values. The compensation circuit controls the output voltage by ...
... voltage into high voltage. (All high voltage section components in the HV section and shielded.) The output voltage (V) and current (I) are sensed and fedback to high gain compensation circuitry where they are compared to the programmed values. The compensation circuit controls the output voltage by ...
Buck converter
A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.