Aalborg Universitet Connected Inverter Systems
... where T p is the Park transform matrix. Eq. (4) shows that the detected phase error ε (i.e., vq /Vg ) can be regulated by a PI controller so that the grid voltage phase θ is locked as θ′ in the steady-state. In addition, the grid voltage amplitude Vg = vd and frequency f ′ = ω ′ /(2π) can also be ob ...
... where T p is the Park transform matrix. Eq. (4) shows that the detected phase error ε (i.e., vq /Vg ) can be regulated by a PI controller so that the grid voltage phase θ is locked as θ′ in the steady-state. In addition, the grid voltage amplitude Vg = vd and frequency f ′ = ω ′ /(2π) can also be ob ...
UNIT PULSE GENERATOR
... internal operation ............. The mode where pulse repetition frequency is determined by the pulse generator itself and controlled by the PRF controls on the front panel. external operation ............. The mode where pulse repetition frequency is determined by an external signal source; the pul ...
... internal operation ............. The mode where pulse repetition frequency is determined by the pulse generator itself and controlled by the PRF controls on the front panel. external operation ............. The mode where pulse repetition frequency is determined by an external signal source; the pul ...
250MHz to 4000MHz Dual, Analog Voltage Variable Attenuator
... Note 2: Based on junction temperature TJ = TC + (θJC x VCC x ICC). This formula can be used when the temperature of the exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150°C. Note 3: Ju ...
... Note 2: Based on junction temperature TJ = TC + (θJC x VCC x ICC). This formula can be used when the temperature of the exposed pad is known while the device is soldered down to a PCB. See the Applications Information section for details. The junction temperature must not exceed +150°C. Note 3: Ju ...
first published: ieee - iasted international conference on power
... electromagnetic-based and active filters have been applied, and proposes a method of integration of the two technologies on an electrical system basis so as to deliver reliable harmonic correction that predictably meets IEEErecommended limits. PHASE MULTIPLICATION (ELECTROMAGNETICBASED TECHNOLOGY) T ...
... electromagnetic-based and active filters have been applied, and proposes a method of integration of the two technologies on an electrical system basis so as to deliver reliable harmonic correction that predictably meets IEEErecommended limits. PHASE MULTIPLICATION (ELECTROMAGNETICBASED TECHNOLOGY) T ...
A fast LED driver prototype for HCAL calibration
... • PIN photo diode, do we need them? HCAL HH, DEC19, 2007 ...
... • PIN photo diode, do we need them? HCAL HH, DEC19, 2007 ...
ADE7759 数据手册DataSheet 下载
... can be switched off if the ADE7759 is used with conventional current sensors. The ADE7759 contains a sampled waveform register and an active energy register capable of holding at least 11.53 seconds of accumulated power at full ac load. Data is read from the ADE7759 via the serial interface. The ADE ...
... can be switched off if the ADE7759 is used with conventional current sensors. The ADE7759 contains a sampled waveform register and an active energy register capable of holding at least 11.53 seconds of accumulated power at full ac load. Data is read from the ADE7759 via the serial interface. The ADE ...
BD88200GUL
... type built-in and generates the direct regulated negative voltage from the supply voltage. It is possible to drive headphones in a ground standard with both voltage of the positive voltage (+2.4V) and the negative voltage (-2.4V). Therefore a large-capacity output coupling capacitor becomes needless ...
... type built-in and generates the direct regulated negative voltage from the supply voltage. It is possible to drive headphones in a ground standard with both voltage of the positive voltage (+2.4V) and the negative voltage (-2.4V). Therefore a large-capacity output coupling capacitor becomes needless ...
Chirp spectrum
The spectrum of a chirp pulse describes its characteristics in terms of its frequency components. This frequency-domain representation is an alternative to the more familiar time-domain waveform, and the two versions are mathematically related by the Fourier transform. The spectrum is of particular interest when pulses are subject to signal processing. For example, when a chirp pulse is compressed by its matched filter, the resulting waveform contains not only a main narrow pulse but, also, a variety of unwanted artifacts many of which are directly attributable to features in the chirp's spectral characteristics. The simplest way to derive the spectrum of a chirp, now computers are widely available, is to sample the time-domain waveform at a frequency well above the Nyquist limit and call up an FFT algorithm to obtain the desired result. As this approach was not an option for the early designers, they resorted to analytic analysis, where possible, or to graphical or approximation methods, otherwise. These early methods still remain helpful, however, as they give additional insight into the behavior and properties of chirps.