Dimming Presentation
... electric motors will generate destructive inductive kickback energy when dimmed by an RPC dimmer. RPC dimmers either should not be used with these loads or should switch to forwardphase control (FPC) to dim such loads. In both cases, FPC or RPC, the dimmers are producing triplen harmonics. Using a t ...
... electric motors will generate destructive inductive kickback energy when dimmed by an RPC dimmer. RPC dimmers either should not be used with these loads or should switch to forwardphase control (FPC) to dim such loads. In both cases, FPC or RPC, the dimmers are producing triplen harmonics. Using a t ...
No-arc Relay Operation
... Do not use hybrid relays for limit contactors. A limit or safety device must provide a positive mechanical break on all hot legs simultaneously. Do not: Do not use DC loads with hybrid relays. The triacs used for arc suppression will only turn off with AC line voltage. Do not: Do not use hybrid swit ...
... Do not use hybrid relays for limit contactors. A limit or safety device must provide a positive mechanical break on all hot legs simultaneously. Do not: Do not use DC loads with hybrid relays. The triacs used for arc suppression will only turn off with AC line voltage. Do not: Do not use hybrid swit ...
Conductivity-Modulated FETs-IGBT
... High dv/dt values, such as those that can occur when commutating inductive load currents from the freewheeling circuit to the transistor being turned on (dv/dt > 5 kV/µs), can result in the anti-parallel transistor being switched into the conductive state, as shown in Figure 5. Figure 5 shows the el ...
... High dv/dt values, such as those that can occur when commutating inductive load currents from the freewheeling circuit to the transistor being turned on (dv/dt > 5 kV/µs), can result in the anti-parallel transistor being switched into the conductive state, as shown in Figure 5. Figure 5 shows the el ...
TL circuits with half- and quarter
... • Last lecture we established that phasor solutions of telegrapher’s equations for TL’s in sinusoidal steady-state can be expressed as V +ejβd − V −e−jβd V (d) = V e + V e and I(d) = Zo in a new coordinate system shown in the margin. + jβd ...
... • Last lecture we established that phasor solutions of telegrapher’s equations for TL’s in sinusoidal steady-state can be expressed as V +ejβd − V −e−jβd V (d) = V e + V e and I(d) = Zo in a new coordinate system shown in the margin. + jβd ...
BUF04701 4-Channel, Rail-to-Rail, CMOS BUFFER AMPLIFIER DESCRIPTION
... output current and fast output slewing can demand large current transients from the power supplies. Rail-to-rail input and output swing helps maintain dynamic range, especially in low supply applications. Figure 2 shows the input and output waveforms for the BUF04701. On a ±6V supply with a 100kΩ lo ...
... output current and fast output slewing can demand large current transients from the power supplies. Rail-to-rail input and output swing helps maintain dynamic range, especially in low supply applications. Figure 2 shows the input and output waveforms for the BUF04701. On a ±6V supply with a 100kΩ lo ...
南台科技大學 電力電子研究室
... A fault-detection circuit based on the IGBT gate-voltage behavior has been proposed, and in addition, this fault-detection circuit has been implemented in the gate drive focused on a motor drive. The delay time of the fault-detection circuit obtained is less than 3 μs; thus, this strategy is suitabl ...
... A fault-detection circuit based on the IGBT gate-voltage behavior has been proposed, and in addition, this fault-detection circuit has been implemented in the gate drive focused on a motor drive. The delay time of the fault-detection circuit obtained is less than 3 μs; thus, this strategy is suitabl ...
Sabertooth 2x12 User`s Guide
... Simplified serial uses TTL level single-byte serial commands to set the motor speed and direction. This makes it easy to interface to microcontrollers and PCs, without having to implement a packet-based communications protocol. Simplified serial is a one-direction only interface. The transmit line f ...
... Simplified serial uses TTL level single-byte serial commands to set the motor speed and direction. This makes it easy to interface to microcontrollers and PCs, without having to implement a packet-based communications protocol. Simplified serial is a one-direction only interface. The transmit line f ...
View Book Sample - Cheap Assignment Help
... one stage to the next. They are generally provided with a Clear or Reset connection so that they can be "SET" or "RESET" as required. A shift register is controlled with certain clock pulses by inhibiting the clock from the input of the register if shift is not required. A shift register is also abl ...
... one stage to the next. They are generally provided with a Clear or Reset connection so that they can be "SET" or "RESET" as required. A shift register is controlled with certain clock pulses by inhibiting the clock from the input of the register if shift is not required. A shift register is also abl ...
Programmable Drum Machine Hardware Review
... Input channel select is controlled with a 74LS393 dual 4-bit binary counter. The counter is clocked by the end-of-conversion interrupt from an ADC. When a conversion is complete, the counter increments and the next input channel is selected. The most significant bit is buffered to the output enable ...
... Input channel select is controlled with a 74LS393 dual 4-bit binary counter. The counter is clocked by the end-of-conversion interrupt from an ADC. When a conversion is complete, the counter increments and the next input channel is selected. The most significant bit is buffered to the output enable ...
Sabertooth 2x12 - Dimension Engineering
... Simplified serial uses TTL level single-byte serial commands to set the motor speed and direction. This makes it easy to interface to microcontrollers and PCs, without having to implement a packet-based communications protocol. Simplified serial is a one-direction only interface. The transmit line f ...
... Simplified serial uses TTL level single-byte serial commands to set the motor speed and direction. This makes it easy to interface to microcontrollers and PCs, without having to implement a packet-based communications protocol. Simplified serial is a one-direction only interface. The transmit line f ...
MAX5048 Maxim (reluctantly), fast FET driver.pdf
... MAX5048A/MAX5048B GND pin especially when the INinput is used. Ground shifts due to insufficient device grounding may disturb other circuits sharing the same AC ground return path. Any series inductance in the V+, P_OUT, N_OUT and/or GND paths can cause oscillations due to the very high di/dt that r ...
... MAX5048A/MAX5048B GND pin especially when the INinput is used. Ground shifts due to insufficient device grounding may disturb other circuits sharing the same AC ground return path. Any series inductance in the V+, P_OUT, N_OUT and/or GND paths can cause oscillations due to the very high di/dt that r ...
ICM326HM2 - ICM Controls
... • Integral heat pump bypass circuitry allows you to electronically bypass the speed control during heat pump operation • Solid state 10 amp load carrying capability • Single unit controls up to 3 refrigerant circuits • Multiple voltage ranges: see specifications for details • Hard start: adjust ...
... • Integral heat pump bypass circuitry allows you to electronically bypass the speed control during heat pump operation • Solid state 10 amp load carrying capability • Single unit controls up to 3 refrigerant circuits • Multiple voltage ranges: see specifications for details • Hard start: adjust ...
JP2216191626
... currents i3, i2 and i1 are Zero. Hence, to maintain the balance in the DC-link capacitor voltages, it is necessary to make all these three currents equal to zero. The aim of the selection of the switching states for the voltage vectors is here to simultaneously eliminate the common mode voltage and ...
... currents i3, i2 and i1 are Zero. Hence, to maintain the balance in the DC-link capacitor voltages, it is necessary to make all these three currents equal to zero. The aim of the selection of the switching states for the voltage vectors is here to simultaneously eliminate the common mode voltage and ...
CN0233: 16位工业、隔离电压电流输出的DAC，同时提供隔离的DC-DC电源 .
... time when using a linear supply and switching supply, as shown in Figure 4. Note that there is a slight offset in output noise measured over time. This offset can be attributed to a combination of dc PSRR due to the difference in linear negative supply versus the unregulated switching supply, as wel ...
... time when using a linear supply and switching supply, as shown in Figure 4. Note that there is a slight offset in output noise measured over time. This offset can be attributed to a combination of dc PSRR due to the difference in linear negative supply versus the unregulated switching supply, as wel ...
Model BD-20A HIGH FREQUENCY GENERATOR OPERATING
... however, meet EN61010-1:1993 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, following the provisions of the Low Voltage Directive 73/23/EEC, as amended by 93/68/EEC Because of the risk of EMI, a risk assessment should be carried out prior to use of this equ ...
... however, meet EN61010-1:1993 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use, following the provisions of the Low Voltage Directive 73/23/EEC, as amended by 93/68/EEC Because of the risk of EMI, a risk assessment should be carried out prior to use of this equ ...
Variable-frequency drive
A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.