Aalborg Universitet Power Generation System
... Here main parameters used: Nominal grid frequency, 50Hz. Rated converter module output current, 515A. Rated grid voltage, 690V. Nominal DC-link voltage, 1050V. Grid filter capacitances, 167uF. Grid filter inductance, 0.4mH. And RD is 2.1ohm. Switching frequency, 2.5kHz. Control frequency, 5kHz. DC-l ...
... Here main parameters used: Nominal grid frequency, 50Hz. Rated converter module output current, 515A. Rated grid voltage, 690V. Nominal DC-link voltage, 1050V. Grid filter capacitances, 167uF. Grid filter inductance, 0.4mH. And RD is 2.1ohm. Switching frequency, 2.5kHz. Control frequency, 5kHz. DC-l ...
MAX1954A Low-Cost, Current-Mode PWM Buck Controller with Foldback Current Limit General Description
... The MAX1954A synchronous current-mode, pulsewidth modulation (PWM) buck controller is pin compatible with the popular MAX1954 and is suitable for applications where cost and size are critical. The MAX1954A operates from an input voltage range of 3.0V to 13.2V, independent of the IC supply. The outpu ...
... The MAX1954A synchronous current-mode, pulsewidth modulation (PWM) buck controller is pin compatible with the popular MAX1954 and is suitable for applications where cost and size are critical. The MAX1954A operates from an input voltage range of 3.0V to 13.2V, independent of the IC supply. The outpu ...
NCP1207A, NCP1207B PWM Current
... If ICC2 equals 2.3 mA @ TJ = 60°C, then the power dissipated (lost) by the IC is simply: 350 V x 2.3 mA = 805 mW. For design and reliability reasons, it would be interested to reduce this source of wasted power that increase the die temperature. This can be achieved by using different methods: 1. Us ...
... If ICC2 equals 2.3 mA @ TJ = 60°C, then the power dissipated (lost) by the IC is simply: 350 V x 2.3 mA = 805 mW. For design and reliability reasons, it would be interested to reduce this source of wasted power that increase the die temperature. This can be achieved by using different methods: 1. Us ...
dc voltage measurements
... identifies them as being associated with ranges that may, in normal use, be subjected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be ...
... identifies them as being associated with ranges that may, in normal use, be subjected to particularly hazardous voltages. For maximum safety, the meter and its test leads should not be ...
broadband conical inductors
... the entire device and a ground plane. The series self resonances are the most undesirable, for they appear as a short circuit across the device. Conical coil devices use very fine wire and have low stray capacitance to a ground plane because of their small physical size. BIAS TEE APPLICATIONS Bias T ...
... the entire device and a ground plane. The series self resonances are the most undesirable, for they appear as a short circuit across the device. Conical coil devices use very fine wire and have low stray capacitance to a ground plane because of their small physical size. BIAS TEE APPLICATIONS Bias T ...
DMOS 1A Low-Dropout Regulator (Rev. G)
... The REG104 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low dropout voltage (only 230mV typ at full load), and better transient performance. In addition, no output capacito ...
... The REG104 is a family of low-noise, low-dropout linear regulators with low ground pin current. Its new DMOS topology provides significant improvement over previous designs, including low dropout voltage (only 230mV typ at full load), and better transient performance. In addition, no output capacito ...
Electrical 2
... • CMOS uses very little power in the static state (in the order of W). • As switching increases (more dynamic), so does power consumption. This is primarily due to capacitance. • Power requirements also increase with ambient temperature. As temperature increases, so does power consumption. • Static ...
... • CMOS uses very little power in the static state (in the order of W). • As switching increases (more dynamic), so does power consumption. This is primarily due to capacitance. • Power requirements also increase with ambient temperature. As temperature increases, so does power consumption. • Static ...
Analysis of Envelope Signal Injection for Improvement of RF Amplifier Intermodulation Distortion
... shown in Fig. 2), as well as its transconductance, are timevarying. For intermodulation calculations, this is modeled as an additional small-signal envelope signal voltage along with the two-tone RF signal inputs. Volterra analysis is used to capture the frequency dependent nonlinearities, which dom ...
... shown in Fig. 2), as well as its transconductance, are timevarying. For intermodulation calculations, this is modeled as an additional small-signal envelope signal voltage along with the two-tone RF signal inputs. Volterra analysis is used to capture the frequency dependent nonlinearities, which dom ...
CuS and AgS Solid-Electrochemical Cells as Non
... inter-electrode distances of up to 1 cm through the solidelectrolyte (silver sulfide or copper sulfide) layer (figure 1). The application of a sufficiently large negative voltage to the gold electrode injects free electrons into the silver sulfide film initiating an electrochemical reaction Ag+ + e→ ...
... inter-electrode distances of up to 1 cm through the solidelectrolyte (silver sulfide or copper sulfide) layer (figure 1). The application of a sufficiently large negative voltage to the gold electrode injects free electrons into the silver sulfide film initiating an electrochemical reaction Ag+ + e→ ...
BD6967FVM
... supply lines. An external direction diode can be added. Power supply line Back electromotive force causes regenerated current to power supply line, therefore take a measure such as placing a capacitor between power supply and GND for routing regenerated current. And fully ensure that the capacitor c ...
... supply lines. An external direction diode can be added. Power supply line Back electromotive force causes regenerated current to power supply line, therefore take a measure such as placing a capacitor between power supply and GND for routing regenerated current. And fully ensure that the capacitor c ...
30A Range Bidirectional Current Shunt Monitor
... For this design, a current shunt monitor with a wide input current sensing range, analog output, high accuracy, and the benefit of an internal shunt are needed. The current shunt monitor chosen for this application is the INA250A2. This device not only has the resolution and accuracy needed to achie ...
... For this design, a current shunt monitor with a wide input current sensing range, analog output, high accuracy, and the benefit of an internal shunt are needed. The current shunt monitor chosen for this application is the INA250A2. This device not only has the resolution and accuracy needed to achie ...
1996B4 - HomeworkNOW.com
... (a) The two bulbs are first connected in parallel to a 120 V source. i. Determine the resistance of the bulb rated 30 W and the current in it when it is connected in this circuit. ii. Determine the resistance of the bulb rated 40 W and the current in it when it is connected in this circuit. (b) The ...
... (a) The two bulbs are first connected in parallel to a 120 V source. i. Determine the resistance of the bulb rated 30 W and the current in it when it is connected in this circuit. ii. Determine the resistance of the bulb rated 40 W and the current in it when it is connected in this circuit. (b) The ...
All amplifiers are analogue, but some amplifiers are more
... and one valid way of representing them electrically. Figure 1(b) shows the same signal integrated by two different integrators. One is digital. It reads the data embedded in the electrical signal and makes a running sum. The other is analogue, and integrates the analogue waveform over time. The outc ...
... and one valid way of representing them electrically. Figure 1(b) shows the same signal integrated by two different integrators. One is digital. It reads the data embedded in the electrical signal and makes a running sum. The other is analogue, and integrates the analogue waveform over time. The outc ...
TLV1018 数据资料 dataSheet 下载
... External Pre-Amplifier Application The TLV1018 can also be used outside of an ECM as a space saving external preamplifier. In this application, the TLV1018 follows a phantom biased JFET microphone in the circuit. This is shown in Figure 6. The input of the TLV1018 is connected to the microphone via ...
... External Pre-Amplifier Application The TLV1018 can also be used outside of an ECM as a space saving external preamplifier. In this application, the TLV1018 follows a phantom biased JFET microphone in the circuit. This is shown in Figure 6. The input of the TLV1018 is connected to the microphone via ...
TPS60200 数据资料 dataSheet 下载
... When the output current is higher then the LinSkip current threshold, the charge pump runs continuously at the switching frequency f(OSC). The control circuit, fed from the error amplifier, controls the charge on C1 and C2 by controlling the gates and hence the rDS(ON) of the integrated MOSFETs. Whe ...
... When the output current is higher then the LinSkip current threshold, the charge pump runs continuously at the switching frequency f(OSC). The control circuit, fed from the error amplifier, controls the charge on C1 and C2 by controlling the gates and hence the rDS(ON) of the integrated MOSFETs. Whe ...
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.