en 50160 cenelec - Schneider Electric
... Magnitude of the supply voltage . ........................................................................................ 14 Supply voltage changes . ...................................................................................................... 14 Rapid voltage changes . ................... ...
... Magnitude of the supply voltage . ........................................................................................ 14 Supply voltage changes . ...................................................................................................... 14 Rapid voltage changes . ................... ...
Energy Storage Equipped STATCOM for Power Quality
... the quality of the voltages and currents, focused on distortions from ideal power supplies. With respect to power quality, power electronic based loads are, on one hand, more demanding than conventional loads. At the same time, these loads tend to pollute the power system with more power quality rel ...
... the quality of the voltages and currents, focused on distortions from ideal power supplies. With respect to power quality, power electronic based loads are, on one hand, more demanding than conventional loads. At the same time, these loads tend to pollute the power system with more power quality rel ...
an-1265 application note
... meaning the sinc filter gives equal weight to samples before and after the center pin (see Figure 9). Furthermore, the switching component is symmetrical around the point of average current. That is, if x equally spaced samples taken before the point of average current are added to x equally spaced ...
... meaning the sinc filter gives equal weight to samples before and after the center pin (see Figure 9). Furthermore, the switching component is symmetrical around the point of average current. That is, if x equally spaced samples taken before the point of average current are added to x equally spaced ...
Brush Type Manual - General Dynamics Mission Systems
... motor.The commutation angle is 90 electrical degrees which yields the largest ripple torque of about 17% average to peak.A three phase delta system is shown in Figure 3.The commutation angle is 60 degrees and the ripple toque is approximately 7% average to peak. Since two-thirds of the available win ...
... motor.The commutation angle is 90 electrical degrees which yields the largest ripple torque of about 17% average to peak.A three phase delta system is shown in Figure 3.The commutation angle is 60 degrees and the ripple toque is approximately 7% average to peak. Since two-thirds of the available win ...
Linköping University Post Print Reduction of Substrate Noise in Sub Clock
... impedance of the power supply net cause a voltage fluctuation denoted simultaneous switching noise (SSN) on the digital supply rails. In conventional designs, substrate contacts are included in each digital gate to bias the substrate to ground voltage. These substrate contacts give low impedance fro ...
... impedance of the power supply net cause a voltage fluctuation denoted simultaneous switching noise (SSN) on the digital supply rails. In conventional designs, substrate contacts are included in each digital gate to bias the substrate to ground voltage. These substrate contacts give low impedance fro ...
IM483 High Performance Microstepping Drive
... be changed at any time without the need to reset the driver. This feature allows the user to rapidly move long distances, yet precisely position the motor at the end of travel without the expense of high performance controllers. With the development of proprietary and patented circuits, ripple curre ...
... be changed at any time without the need to reset the driver. This feature allows the user to rapidly move long distances, yet precisely position the motor at the end of travel without the expense of high performance controllers. With the development of proprietary and patented circuits, ripple curre ...
LTC1569-7 - Linear Technology
... between IN + and IN – (Pin 1 and Pin 2) is filtered with a DC gain of 1. The single-ended output voltage OUT (Pin 8) is referenced to the voltage of the GND (Pin 3). The common mode voltage of IN + and IN – can be any voltage that keeps the input signals within the power supply range. For noninverti ...
... between IN + and IN – (Pin 1 and Pin 2) is filtered with a DC gain of 1. The single-ended output voltage OUT (Pin 8) is referenced to the voltage of the GND (Pin 3). The common mode voltage of IN + and IN – can be any voltage that keeps the input signals within the power supply range. For noninverti ...
Document
... usually self-learning of motor parameters is necessary so as to get accurate motor internal parameters for vector control calculation. Self-learning of motor parameters need know the following plate data: rated power, rated frequency, rated speed, rated voltage, and rated current. The plate of some ...
... usually self-learning of motor parameters is necessary so as to get accurate motor internal parameters for vector control calculation. Self-learning of motor parameters need know the following plate data: rated power, rated frequency, rated speed, rated voltage, and rated current. The plate of some ...
MOSFET Switching Loss Model and Optimal Design
... Miller Plateau [t9 , t10 ]: At t9 , v CGS = V TH + I O× gFS . In this interval, v CGS holds at the Miller plateau voltage, V TH + IO ×gFS . iG (equal to iL r ) strictly discharges the gate-to-drain capacitance C GD of Q and v DS rises until it reaches V IN at t10 . The equivalent circuit is illustra ...
... Miller Plateau [t9 , t10 ]: At t9 , v CGS = V TH + I O× gFS . In this interval, v CGS holds at the Miller plateau voltage, V TH + IO ×gFS . iG (equal to iL r ) strictly discharges the gate-to-drain capacitance C GD of Q and v DS rises until it reaches V IN at t10 . The equivalent circuit is illustra ...
App58-Solid State Relays Current Limit Performance
... across the SSR. The SSR remains in this state for the duration of the SSR's specified turn-on time. Lastly, the SSR turns back on and limits the transient current to the SSR's specified current-limit value. In current limiting, the SSR presents a high impedance to the fault. The SSR can dissipate a ...
... across the SSR. The SSR remains in this state for the duration of the SSR's specified turn-on time. Lastly, the SSR turns back on and limits the transient current to the SSR's specified current-limit value. In current limiting, the SSR presents a high impedance to the fault. The SSR can dissipate a ...
HAMTRONICS® R100 VHF FM RECEIVER: ASSEMBLY
... An 8-ohm loudspeaker should be connected to E2 with ground return through the mounting hardware. Use of lower impedance speaker or shorting of speaker terminal can result in ic damage. The receiver can also drive higher impedances, like 1K to 10K input impedances of COR boards, etc. There is no need ...
... An 8-ohm loudspeaker should be connected to E2 with ground return through the mounting hardware. Use of lower impedance speaker or shorting of speaker terminal can result in ic damage. The receiver can also drive higher impedances, like 1K to 10K input impedances of COR boards, etc. There is no need ...
SimpliPHY VSC8204 PCB Design and Layout Guide ®
... The VSC8204 contains an internal delay element connected to each TX_CLK and RX_CLK pin, which can provide the necessary clock delays for the RGMII interface without the need for PCB trace delays. These elements are enabled by writing a 1 to MII register 23, bit 8. Note that the delay for TX_CLK and ...
... The VSC8204 contains an internal delay element connected to each TX_CLK and RX_CLK pin, which can provide the necessary clock delays for the RGMII interface without the need for PCB trace delays. These elements are enabled by writing a 1 to MII register 23, bit 8. Note that the delay for TX_CLK and ...
Features
... FPGAs. We can support within one ULC from 18 Kbits to 390 Kbits DPRAM and from 46 Kgates to 780 Kgates. Typically, ULC die size is 50% smaller than the equivalent FPGA die size. DPRAM blocks are compatible with Xilinx or Altera FPGA blocks. Devices are implemented in high–performance CMOS technology ...
... FPGAs. We can support within one ULC from 18 Kbits to 390 Kbits DPRAM and from 46 Kgates to 780 Kgates. Typically, ULC die size is 50% smaller than the equivalent FPGA die size. DPRAM blocks are compatible with Xilinx or Altera FPGA blocks. Devices are implemented in high–performance CMOS technology ...
SN54AHCT123A, SN74AHCT123A (Rev. G)
... the wiring between the external components and Cext and Rext/Cext terminals as short as possible. ...
... the wiring between the external components and Cext and Rext/Cext terminals as short as possible. ...
Hola Agustin - Portal UniMAP
... 2.7 Operation under load When the load switch in the secondary circuit of the transformer in Fig 2-7 is closed, a current IX, equal to VX divided by the load impedance, will flow. By Lenz’s law, any current caused to flow by an induced emf flows in such direction as to oppose the action that causes ...
... 2.7 Operation under load When the load switch in the secondary circuit of the transformer in Fig 2-7 is closed, a current IX, equal to VX divided by the load impedance, will flow. By Lenz’s law, any current caused to flow by an induced emf flows in such direction as to oppose the action that causes ...
1 Static Characteristics I
... Then VO = VCC – ICRC = VCC Hence, with Vi = 0 = VL input LO, we have VO = VCC = VH output HI This is a logic inverting action. ...
... Then VO = VCC – ICRC = VCC Hence, with Vi = 0 = VL input LO, we have VO = VCC = VH output HI This is a logic inverting action. ...
BD88200GUL
... BD88xxxGUL is output coupling capacitorless headphone amplifier. This IC has a negative voltage generator of regulated 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 ...
... BD88xxxGUL is output coupling capacitorless headphone amplifier. This IC has a negative voltage generator of regulated 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 ...
AN-6047 FIN324C Reset and Standby Summary www.fairchildsemi.com
... differently. Unlike the standby pin, both the serializer and deserializer have the reset pin. When reset is in LOW state, the device is in a power-down mode. The power-down mode consumes less than 10µA of power. When reset is asserted HIGH, all registers and outputs are reset to initial states. The ...
... differently. Unlike the standby pin, both the serializer and deserializer have the reset pin. When reset is in LOW state, the device is in a power-down mode. The power-down mode consumes less than 10µA of power. When reset is asserted HIGH, all registers and outputs are reset to initial states. The ...
Programming Tricks for Higher Conversion Speeds Utilizing Delta Sigma Converters
... the contrary, close inspection of these transducer interface circuits divulge a different story. The sensing element’s output could be a fairly high voltage (hundreds of mV to several volts), however, the delta output voltages that represent a change in temperature, pressure, light, etc., is usually ...
... the contrary, close inspection of these transducer interface circuits divulge a different story. The sensing element’s output could be a fairly high voltage (hundreds of mV to several volts), however, the delta output voltages that represent a change in temperature, pressure, light, etc., is usually ...
ISL59601-05
... Typical Performance Over 1000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Typical Performance Over 2000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Typical Performance Over 1000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Typical Performance Over 2000 Feet of Cat 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
Pulse-width modulation
Pulse-width modulation (PWM), or pulse-duration modulation (PDM), is a modulation technique used to encode a message into a pulsing signal. Although this modulation technique can be used to encode information for transmission, its main use is to allow the control of the power supplied to electrical devices, especially to inertial loads such as motors. In addition, PWM is one of the two principal algorithms used in photovoltaic solar battery chargers, the other being MPPT.The average value of voltage (and current) fed to the load is controlled by turning the switch between supply and load on and off at a fast rate. The longer the switch is on compared to the off periods, the higher the total power supplied to the load.The PWM switching frequency has to be much higher than what would affect the load (the device that uses the power), which is to say that the resultant waveform perceived by the load must be as smooth as possible. Typically switching has to be done several times a minute in an electric stove, 120 Hz in a lamp dimmer, from few kilohertz (kHz) to tens of kHz for a motor drive and well into the tens or hundreds of kHz in audio amplifiers and computer power supplies.The term duty cycle describes the proportion of 'on' time to the regular interval or 'period' of time; a low duty cycle corresponds to low power, because the power is off for most of the time. Duty cycle is expressed in percent, 100% being fully on.The main advantage of PWM is that power loss in the switching devices is very low. When a switch is off there is practically no current, and when it is on and power is being transferred to the load, there is almost no voltage drop across the switch. Power loss, being the product of voltage and current, is thus in both cases close to zero. PWM also works well with digital controls, which, because of their on/off nature, can easily set the needed duty cycle.PWM has also been used in certain communication systems where its duty cycle has been used to convey information over a communications channel.