78ET-2
... another circuit consisting of a resistor 20 ohms in series with a capacitor of capacitive reactance 15 ohms. Find the total current taken when this combination is connected to a 220 Volt/40 Hz supply, what capacitance placed in parallel will make the P.F. unity. Three coils each, having a resistance ...
... another circuit consisting of a resistor 20 ohms in series with a capacitor of capacitive reactance 15 ohms. Find the total current taken when this combination is connected to a 220 Volt/40 Hz supply, what capacitance placed in parallel will make the P.F. unity. Three coils each, having a resistance ...
Electric Components
... If a small voltage is applied to the base (enough to remove the depletion layer in the lower junction), current flows from emitter to base like a normal diode. Once current is flowing, it sweeps straight through the very thin base region and into the collector: The transistor is now conducting throu ...
... If a small voltage is applied to the base (enough to remove the depletion layer in the lower junction), current flows from emitter to base like a normal diode. Once current is flowing, it sweeps straight through the very thin base region and into the collector: The transistor is now conducting throu ...
common emitter transistor amplifier
... At this point I briefly deviate from the conventional design process. The base bias resister values that I actually use in my design are 22K & 91K rather than those values calculated above. The reason for doing this is to increase the input resistance somewhat. Rb2 was increased by a larger amount p ...
... At this point I briefly deviate from the conventional design process. The base bias resister values that I actually use in my design are 22K & 91K rather than those values calculated above. The reason for doing this is to increase the input resistance somewhat. Rb2 was increased by a larger amount p ...
PHYS 632 Lecture 6: Current and Resistance
... Emf of a battery is the amount of increase of electrical potential of the charge when it flows from negative to positive in the battery. (Emf stands for electromotive force.) Carbon-zinc = Emf = 1.5V Lead-acid in car = Emf = 2V per cell (large areas of cells give lots of current) ...
... Emf of a battery is the amount of increase of electrical potential of the charge when it flows from negative to positive in the battery. (Emf stands for electromotive force.) Carbon-zinc = Emf = 1.5V Lead-acid in car = Emf = 2V per cell (large areas of cells give lots of current) ...
Physics of Hybrid Vehicles
... RC [resistor-capacitor] filters are used to decrease the AC component and allow steady DC meter readings. [especially with a digital meter] A diode is used to charge a capacitor for the peak reading. Peak voltage should not exceed maximum soft charge voltage. For both configurations, the generator m ...
... RC [resistor-capacitor] filters are used to decrease the AC component and allow steady DC meter readings. [especially with a digital meter] A diode is used to charge a capacitor for the peak reading. Peak voltage should not exceed maximum soft charge voltage. For both configurations, the generator m ...
B o o s t C o n... TDA4863 Power Factor Controller IC for High Power Factor
... occurs near the line voltage peak and causes a high charge current spike with following characteristics: The apparent power is higher than the real power that means low power factor condition, the current spikes are non sinusoidal with a high content of harmonics causing line noise, the rectified vo ...
... occurs near the line voltage peak and causes a high charge current spike with following characteristics: The apparent power is higher than the real power that means low power factor condition, the current spikes are non sinusoidal with a high content of harmonics causing line noise, the rectified vo ...
RT9179
... than 10mΩ). However, some dielectric types do not have good capacitance characteristics as a function of voltage and temperature. Z5U and Y5V dielectric ceramics have capacitance that drops severely with applied voltage. A typical Z5U or Y5V capacitor can lose 60% of its rated capacitance with half ...
... than 10mΩ). However, some dielectric types do not have good capacitance characteristics as a function of voltage and temperature. Z5U and Y5V dielectric ceramics have capacitance that drops severely with applied voltage. A typical Z5U or Y5V capacitor can lose 60% of its rated capacitance with half ...
Bab 3
... Operation of an SCR in varying the rms dc voltage in half wave operation (Fig.7-8). o SCR turns on in repetitive way. o SCR is turned back off in each half cycle when the as polarity reverses. o By changing the part of the positive half cycle when the trigger is applied, the effective (rms) value ...
... Operation of an SCR in varying the rms dc voltage in half wave operation (Fig.7-8). o SCR turns on in repetitive way. o SCR is turned back off in each half cycle when the as polarity reverses. o By changing the part of the positive half cycle when the trigger is applied, the effective (rms) value ...
TDA2040 - Tinkersphere
... The layout shown in Figure 14 should be adopted by the designers. If different layouts are used, the ground points of input 1 and input 2 must be well decoupled from the ground return of the output in which a high current flows. ...
... The layout shown in Figure 14 should be adopted by the designers. If different layouts are used, the ground points of input 1 and input 2 must be well decoupled from the ground return of the output in which a high current flows. ...
Z4000 Envelope Generator
... (CCW) or positive (CW). So when summing the static voltage with the envelope voltage, a lot of interesting things can happen such as offsetting, mirroring and clipping. But voltage manipulation doesn't end there, the Devater includes a VC input allowing you to inject even more static signals or dyna ...
... (CCW) or positive (CW). So when summing the static voltage with the envelope voltage, a lot of interesting things can happen such as offsetting, mirroring and clipping. But voltage manipulation doesn't end there, the Devater includes a VC input allowing you to inject even more static signals or dyna ...
BU508AF
... The BU508AF is manufactured using diffused collector in planar technology adopting new and ...
... The BU508AF is manufactured using diffused collector in planar technology adopting new and ...
TPS40040 数据资料 dataSheet 下载
... Input (bootstrapped) supply to the high-side gate driver for PWM enabling the gate of the high side FET to be driven above the input supply rail. Connect a ceramic capacitor from this pin to SW. This capacitor is charged from the VDD pin voltage through an internal switch. The switch is turned ON du ...
... Input (bootstrapped) supply to the high-side gate driver for PWM enabling the gate of the high side FET to be driven above the input supply rail. Connect a ceramic capacitor from this pin to SW. This capacitor is charged from the VDD pin voltage through an internal switch. The switch is turned ON du ...
FJA13009 High Speed Switching F JA
... FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY L ...
... FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION, OR DESIGN. FAIRCHILD DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY L ...
Data Sheet Features General Description
... (ESR) that is required to minimize output voltage ripple and load step transients, as well as the amount of bulk capacitor that is necessary to ensure that the control loop is stable. Loop stability can be also checked by viewing the load step transient response as described in the following section ...
... (ESR) that is required to minimize output voltage ripple and load step transients, as well as the amount of bulk capacitor that is necessary to ensure that the control loop is stable. Loop stability can be also checked by viewing the load step transient response as described in the following section ...
Abstract.
... voltage follower provides a low output impedance of the amplifier. The input-to-output small signal transfer function has a pole with time constant 14ns. The DC gain of the amplifier is 130. The circuit draws about 1.2uA current from the 1.2V power supply source. The overall power consumption is 1.5 ...
... voltage follower provides a low output impedance of the amplifier. The input-to-output small signal transfer function has a pole with time constant 14ns. The DC gain of the amplifier is 130. The circuit draws about 1.2uA current from the 1.2V power supply source. The overall power consumption is 1.5 ...
Physics 3 - NYCC SP-01
... than secondary it is a step-down transformer, conversely if the number of secondary windings is greater than the number of primary windings it is a step-up transformer. ...
... than secondary it is a step-down transformer, conversely if the number of secondary windings is greater than the number of primary windings it is a step-up transformer. ...
enhancement of power quality using d-statcom based on
... converter (CSC). In practice, however, the VSC is preferred because of the bi directional voltage-blocking capability required by the power semiconductor devices used in CSCs. To achieve this kind switch characteristic, an additional diode must be connected in series with a conventional semiconducto ...
... converter (CSC). In practice, however, the VSC is preferred because of the bi directional voltage-blocking capability required by the power semiconductor devices used in CSCs. To achieve this kind switch characteristic, an additional diode must be connected in series with a conventional semiconducto ...
Power MOSFET
A power MOSFET is a specific type of metal oxide semiconductor field-effect transistor (MOSFET) designed to handle significant power levels.Compared to the other power semiconductor devices, for example an insulated-gate bipolar transistor (IGBT) or a thyristor, its main advantages are high commutation speed and good efficiency at low voltages. It shares with the IGBT an isolated gate that makes it easy to drive. They can be subject to low gain, sometimes to degree that the gate voltage needs to be higher than the voltage under control.The design of power MOSFETs was made possible by the evolution of CMOS technology, developed for manufacturing integrated circuits in the late 1970s. The power MOSFET shares its operating principle with its low-power counterpart, the lateral MOSFET.The power MOSFET is the most widely used low-voltage (that is, less than 200 V) switch. It can be found in most power supplies, DC to DC converters, and low voltage motor controllers.