Improved Algorithms of Direct Torque Control Method
... decreasing speed pulsations and also economical properties by reducing switching frequency which affects power dissipation and inverter efficiency. The main way to improve the DTC method involves the torque pulsation decrease keeping the sampling time tp and transistors switching frequency unchanged ...
... decreasing speed pulsations and also economical properties by reducing switching frequency which affects power dissipation and inverter efficiency. The main way to improve the DTC method involves the torque pulsation decrease keeping the sampling time tp and transistors switching frequency unchanged ...
Precision, 20MHz, 0.9pA, Low-Noise, RRIO, CMOS Operational Amplifier with Shutdown OPA320, OPA320S
... discharge (ESD) protection circuits on all pins. In the case of input and output pins, this protection primarily consists of current-steering diodes connected between the input and power-supply pins. These ESD protection diodes also provide in-circuit input overdrive protection, provided that the cu ...
... discharge (ESD) protection circuits on all pins. In the case of input and output pins, this protection primarily consists of current-steering diodes connected between the input and power-supply pins. These ESD protection diodes also provide in-circuit input overdrive protection, provided that the cu ...
Field Oriented Stepper Motor Control
... filter structures that can extract or recreate required feedback signals that would otherwise require expensive sensors to detect. This provides an immediate size and cost advantage. (2) It reduces acoustic noise from the motor when running at lower speed. This opens up many new applications where s ...
... filter structures that can extract or recreate required feedback signals that would otherwise require expensive sensors to detect. This provides an immediate size and cost advantage. (2) It reduces acoustic noise from the motor when running at lower speed. This opens up many new applications where s ...
this manual (in PDF format) refer to product model and version that
... of a machine all information concerning characteristics, working conditions, application limits and cautions about GMD series stepping motor drives and related accessories. The knowledge of these information is essential for a correct project of machines, apparatus and systems in which the drives ar ...
... of a machine all information concerning characteristics, working conditions, application limits and cautions about GMD series stepping motor drives and related accessories. The knowledge of these information is essential for a correct project of machines, apparatus and systems in which the drives ar ...
ZLNB2015
... control is given over the gain of the amplifier and the lower frequency limit of the filter, using an external resistor and capacitor. (The ESD protection resistor noted above can be used to set amplifier gain, hence requiring only one component for both functions.) The higher frequency limit of the ...
... control is given over the gain of the amplifier and the lower frequency limit of the filter, using an external resistor and capacitor. (The ESD protection resistor noted above can be used to set amplifier gain, hence requiring only one component for both functions.) The higher frequency limit of the ...
XTR8117 数据资料 dataSheet 下载
... full-scale output current. Power dissipation in this transistor can approach 0.8W with high loop voltage (40V) and 20mA output current. The XTR117 is designed to use an external transistor to avoid on-chip, thermal-induced errors. Heat produced by Q1 will still cause ambient temperature changes that ...
... full-scale output current. Power dissipation in this transistor can approach 0.8W with high loop voltage (40V) and 20mA output current. The XTR117 is designed to use an external transistor to avoid on-chip, thermal-induced errors. Heat produced by Q1 will still cause ambient temperature changes that ...
Termination Options for Any-Frequency, Any
... The Si5338 has a CML driver option. This driver can be used to replace an LVPECL driver in ac-coupled applications and save ~15 mA for each output driver in the process. When using the CML driver, no external bias resistors from the CML outputs to ground or Vtt should be connected. The CML driver is ...
... The Si5338 has a CML driver option. This driver can be used to replace an LVPECL driver in ac-coupled applications and save ~15 mA for each output driver in the process. When using the CML driver, no external bias resistors from the CML outputs to ground or Vtt should be connected. The CML driver is ...
BU7245HFV
... (Note 3) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more than VSS. (Note 4) An excessive input current will flow when input voltages of more than VDD+0.6V or less than VSS-0.6V are applied. The input ...
... (Note 3) The voltage difference between inverting input and non-inverting input is the differential input voltage. Then input terminal voltage is set to more than VSS. (Note 4) An excessive input current will flow when input voltages of more than VDD+0.6V or less than VSS-0.6V are applied. The input ...
termination options for any-frequency, any-output
... The Si5338 has a CML driver option. This driver can be used to replace an LVPECL driver in ac-coupled applications and save ~15 mA for each output driver in the process. When using the CML driver, no external bias resistors from the CML outputs to ground or Vtt should be connected. The CML driver is ...
... The Si5338 has a CML driver option. This driver can be used to replace an LVPECL driver in ac-coupled applications and save ~15 mA for each output driver in the process. When using the CML driver, no external bias resistors from the CML outputs to ground or Vtt should be connected. The CML driver is ...
ISD2560/75/90/120 - uri=media.digikey
... The ISD2500 series is designed with several built-in Operational Modes that provide maximum functionality with minimum external components. These modes are described in details as below. The Operational Modes are accessed via the address pins and mapped beyond the normal message address range. When ...
... The ISD2500 series is designed with several built-in Operational Modes that provide maximum functionality with minimum external components. These modes are described in details as below. The Operational Modes are accessed via the address pins and mapped beyond the normal message address range. When ...
DC1646A LTC5564 15GHz RF Power Detector with Comparator
... better than 15dB return loss at these targeted frequencies. The input dynamic range at 5.8GHz is 40dB (from –24dBm to 16dBm) and slightly lower sensitivity at 15GHz. Comparator The high speed comparator compares the external reference voltage on the VREF pin to the internal signal voltage VP from th ...
... better than 15dB return loss at these targeted frequencies. The input dynamic range at 5.8GHz is 40dB (from –24dBm to 16dBm) and slightly lower sensitivity at 15GHz. Comparator The high speed comparator compares the external reference voltage on the VREF pin to the internal signal voltage VP from th ...
Micro Programmable Controller CMP2A
... Two points with variable duty-ratio outputs using PWM(––). (Pulse outputs can be used with transistor outputs only, they cannot be used with relay outputs.) ...
... Two points with variable duty-ratio outputs using PWM(––). (Pulse outputs can be used with transistor outputs only, they cannot be used with relay outputs.) ...
BD89630EFJ
... ●Consideration on permissible dissipation and heat generation As this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower ...
... ●Consideration on permissible dissipation and heat generation As this IC functions with high efficiency without significant heat generation in most applications, no special consideration is needed on permissible dissipation or heat generation. In case of extreme conditions, however, including lower ...
- Free Documents
... The SNB and SNB differential bus transceivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet ANSI Standards TIA/EIAB and TIA/EIAA and ITU Recommendations V. and X.. The SNB and SNB ...
... The SNB and SNB differential bus transceivers are integrated circuits designed for bidirectional data communication on multipoint bus transmission lines. They are designed for balanced transmission lines and meet ANSI Standards TIA/EIAB and TIA/EIAA and ITU Recommendations V. and X.. The SNB and SNB ...
Chapter 6 - AutomationDirect
... Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–3 ...
... Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6–3 ...
MAX3314 460kbps, 1µA, RS-232-Compatible Transceiver General Description Features
... worst-case loads of 3kΩ in parallel with 1000pF. When SHDN is driven low, the transmitter is disabled and put into 3-state mode. The transmitter input does not have a pull-up resistor. Connect to ground if unused. ...
... worst-case loads of 3kΩ in parallel with 1000pF. When SHDN is driven low, the transmitter is disabled and put into 3-state mode. The transmitter input does not have a pull-up resistor. Connect to ground if unused. ...
ultrasonic radar based
... As stated earlier, the time resolution of sound is only about 3 microseconds, so speed and fast execution time of code was not of great importance (compared with some other application like NTSC video signals). This made ultrasound an easy decision. Another hardware tradeoff that was taken into acco ...
... As stated earlier, the time resolution of sound is only about 3 microseconds, so speed and fast execution time of code was not of great importance (compared with some other application like NTSC video signals). This made ultrasound an easy decision. Another hardware tradeoff that was taken into acco ...
Self- Coherent Optical OFDM, an Interesting Alternative to
... Generally, self coherent detection is realized by sending an optical carrier along with the data signal like in direct detection systems. At the receiver, however, the optical carrier is extracted from the signal with the use of filters with very narrow bandwidth and used as an LO using heterodyne o ...
... Generally, self coherent detection is realized by sending an optical carrier along with the data signal like in direct detection systems. At the receiver, however, the optical carrier is extracted from the signal with the use of filters with very narrow bandwidth and used as an LO using heterodyne o ...
Electronic Components for Green Power Generation
... offer high ripple current capabilities and useful lifetimes for inverters in solar power generation. Alternatively, the PCC® (power capacitor chip) can also be designed into such applications. This compact power capacitor features extremely low ESR and ESL values and can be mounted directly onto the ...
... offer high ripple current capabilities and useful lifetimes for inverters in solar power generation. Alternatively, the PCC® (power capacitor chip) can also be designed into such applications. This compact power capacitor features extremely low ESR and ESL values and can be mounted directly onto the ...
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.