notes
... balanced three-phase analysis, because both the currents and voltages are shifted precisely by 30°, we will get the same answers, in terms of voltage and current magnitude, and in terms of powers, if we ignore the 30° altogether . This fact is conducive to performing perphase analysis (and therefor ...
... balanced three-phase analysis, because both the currents and voltages are shifted precisely by 30°, we will get the same answers, in terms of voltage and current magnitude, and in terms of powers, if we ignore the 30° altogether . This fact is conducive to performing perphase analysis (and therefor ...
ee328 sheets - Arab Academy for Science, Technology
... Calculate the power input, line-current & output torque. 2. A 250V series motor has an armature & field resistance of 0.06Ω & 0.025 respectively. The motor draws a line current of 25A when running at 850rpm. Calculate the speed when the line current is 18A, for the same supply voltage. 3. A shunt mo ...
... Calculate the power input, line-current & output torque. 2. A 250V series motor has an armature & field resistance of 0.06Ω & 0.025 respectively. The motor draws a line current of 25A when running at 850rpm. Calculate the speed when the line current is 18A, for the same supply voltage. 3. A shunt mo ...
Angel Stanimirov Marinov*, Vencislav Cekov Valchev - e
... calculation remains. It reaches a maximum of about 15%. Table II shows the results from the last accuracy tests and measurements presented in this paper. This test was done in order to compare the results of the suggested methodology – using MATLAB and the results done with the conventional oscillos ...
... calculation remains. It reaches a maximum of about 15%. Table II shows the results from the last accuracy tests and measurements presented in this paper. This test was done in order to compare the results of the suggested methodology – using MATLAB and the results done with the conventional oscillos ...
AN-9759
... A Power Device (PD) in a Power over Ethernet (PoE) application requires a bridge circuit to regulate the polarity of the input power when the Power Source Equipment (PSE) supplying power to the PD is equipped with an Uninterruptible Power Supply (UPS). The simple diode bridge design has been used wi ...
... A Power Device (PD) in a Power over Ethernet (PoE) application requires a bridge circuit to regulate the polarity of the input power when the Power Source Equipment (PSE) supplying power to the PD is equipped with an Uninterruptible Power Supply (UPS). The simple diode bridge design has been used wi ...
Centaurus Linebacker 100 or 250 Watt Interruptible Power Supply for Emergency Lighting Applications
... Electronics - Inverter • Square wave output • Completely solid-state inverter • Brownout protection is 75% of nominal line voltage ...
... Electronics - Inverter • Square wave output • Completely solid-state inverter • Brownout protection is 75% of nominal line voltage ...
AC TRANSMISSION
... Fig. 6.7 shows the relationship between VR and PR for a 300 km line with different loads and power factors. The load is normalized by dividing PR by P0, the natural load (SIL), so that the results are applicable to overhead lines of all voltage ratings. ...
... Fig. 6.7 shows the relationship between VR and PR for a 300 km line with different loads and power factors. The load is normalized by dividing PR by P0, the natural load (SIL), so that the results are applicable to overhead lines of all voltage ratings. ...
IGBT power modules utilizing new 650V IGBT and Emitter Controlled Diode
... The three level phase leg in NPC topology consists of four IGBTs with its associated antiparallel diodes, all arranged in series, and two additional diodes DH and DL connecting intermediate nodes to the neutral point of the DC-link. All power semiconductors used exhibit the same blocking voltage, wh ...
... The three level phase leg in NPC topology consists of four IGBTs with its associated antiparallel diodes, all arranged in series, and two additional diodes DH and DL connecting intermediate nodes to the neutral point of the DC-link. All power semiconductors used exhibit the same blocking voltage, wh ...
Make A Precision Current Source or Current Sink
... provides local feedback around the op amp to assure loop stability. It also provides noise filtering. With the values shown, the reference noise is filtered by a single pole with f–3dB = 1/(2 • π • R2 • C1) = 16kHz. ...
... provides local feedback around the op amp to assure loop stability. It also provides noise filtering. With the values shown, the reference noise is filtered by a single pole with f–3dB = 1/(2 • π • R2 • C1) = 16kHz. ...
Block B: AC circuits
... denote the imaginary part instead of ‘i’ so as not to confuse it with current. ...
... denote the imaginary part instead of ‘i’ so as not to confuse it with current. ...
Low Voltage Sequential Circuit With a Ring Oscillator Clock
... frequency and quadratically with supply voltage. • In idle periods a microprocessor is optimized to run at a lowvoltage and less than maximum speed to save power. • Generally, a power management unit controls this operation and reduces the Vdd and fclk after detecting an idle state. • Having an inte ...
... frequency and quadratically with supply voltage. • In idle periods a microprocessor is optimized to run at a lowvoltage and less than maximum speed to save power. • Generally, a power management unit controls this operation and reduces the Vdd and fclk after detecting an idle state. • Having an inte ...
Electrical Machines
... • When relative movement between the stator and the rotor poles occurs • Voltage is induced into these windings. • Subsequent induced magnetic field tends to slow movement and act like a “shock absorber” • Can be used to aid starting in a simular way to that of the ...
... • When relative movement between the stator and the rotor poles occurs • Voltage is induced into these windings. • Subsequent induced magnetic field tends to slow movement and act like a “shock absorber” • Can be used to aid starting in a simular way to that of the ...
Copyright © 2004 IEEE. Reprinted from IEEE International Symposium on
... antennae in the presence of RFI, which is either radiated from powerful radio transmitters, wireless network devices, mobile phones and PDAs, or intentionally generated for malicious reasons. These unintentional antennae can serve to couple RF noise into the core circuit [1, 2, 3]. RFI that is coupl ...
... antennae in the presence of RFI, which is either radiated from powerful radio transmitters, wireless network devices, mobile phones and PDAs, or intentionally generated for malicious reasons. These unintentional antennae can serve to couple RF noise into the core circuit [1, 2, 3]. RFI that is coupl ...
A 26.8 dB Gain 19.7 dBm CMOS Power Amplifier Using 4
... To reduce the size of 4-way hybrid coupling DAT T5, the primary loops of two series transformers are placed around the same geometry center. The topology and physical structure are shown in Fig. 3(a) and (b) respectively. If only way 1 and way 2 (or way 3 and way 4) are taken into account, their vol ...
... To reduce the size of 4-way hybrid coupling DAT T5, the primary loops of two series transformers are placed around the same geometry center. The topology and physical structure are shown in Fig. 3(a) and (b) respectively. If only way 1 and way 2 (or way 3 and way 4) are taken into account, their vol ...