Headline 8-bit MCUs in 28-pin packages with enhanced NXP 80C51-based
... A 7.37-MHz internal RC oscillator with a ±1% tolerance over voltage and ambient temperature lets the microcontroller operate without external oscillator components. Users can adjust the IRC oscillator to other frequencies. When the clock doubler option is enabled, the output frequency is 14.746 MHz. ...
... A 7.37-MHz internal RC oscillator with a ±1% tolerance over voltage and ambient temperature lets the microcontroller operate without external oscillator components. Users can adjust the IRC oscillator to other frequencies. When the clock doubler option is enabled, the output frequency is 14.746 MHz. ...
V to
... The Small-Signal Equivalent Circuit •In small-signal midband analysis of FET amplifiers, the coupling capacitors, bypass capacitors, and dc voltage sources are replaced by short circuits. •The FET is replaced with its small-signal equivalent circuit. Then, we write circuit equations and derive usef ...
... The Small-Signal Equivalent Circuit •In small-signal midband analysis of FET amplifiers, the coupling capacitors, bypass capacitors, and dc voltage sources are replaced by short circuits. •The FET is replaced with its small-signal equivalent circuit. Then, we write circuit equations and derive usef ...
Datasheet
... The device GW610200 is a gateway to control lights with DALI protocol in a similar way to any KNX dimmer. It allows to control a maximum of 64 DALI ballasts in two channels with broadcast commands, that is, all of them simultaneously per channel. It includes an integrated power supply to feed the DA ...
... The device GW610200 is a gateway to control lights with DALI protocol in a similar way to any KNX dimmer. It allows to control a maximum of 64 DALI ballasts in two channels with broadcast commands, that is, all of them simultaneously per channel. It includes an integrated power supply to feed the DA ...
Name(s): Physics 202 Part I. (Capacitors in parallel) Geometry (size
... We need to eliminate Q1 and q. Solve the first equation for Q1 and the third equation for q. Substitute both of these results into the middle equation. The resulting equation has V's which we know and the ratio C2/C1 which we want. Repeat the above measurements making sure you obtain consistent resu ...
... We need to eliminate Q1 and q. Solve the first equation for Q1 and the third equation for q. Substitute both of these results into the middle equation. The resulting equation has V's which we know and the ratio C2/C1 which we want. Repeat the above measurements making sure you obtain consistent resu ...
An Approach towards Power Quality Improvement by Reducing
... should remain controllable and when no harmonics are desired, multi-pulse voltage source inverters can be used. Multi-pulse voltage source inverter also eliminates the need of harmonic filters. Fig. 2 shows the five-phase, ten-pulse inverter topology. ...
... should remain controllable and when no harmonics are desired, multi-pulse voltage source inverters can be used. Multi-pulse voltage source inverter also eliminates the need of harmonic filters. Fig. 2 shows the five-phase, ten-pulse inverter topology. ...
CT VT CVT
... across it. The above diagram is a single-phase VT. • In the three-phase system it is necessary to use three VTs at one per phase and they being connected in star or delta depending on the method of connection of the main power source being monitored. • This type of electromagnetic transformers are u ...
... across it. The above diagram is a single-phase VT. • In the three-phase system it is necessary to use three VTs at one per phase and they being connected in star or delta depending on the method of connection of the main power source being monitored. • This type of electromagnetic transformers are u ...
P0470196100
... (PC) stage. The integration of both stages is proposed in this paper, in order to reduce the number of active switches, as well as to simplify the required driving and control circuitry for this application. The implemented topology attained very high power factor (0.9982), and low line current tota ...
... (PC) stage. The integration of both stages is proposed in this paper, in order to reduce the number of active switches, as well as to simplify the required driving and control circuitry for this application. The implemented topology attained very high power factor (0.9982), and low line current tota ...
Comparative Analysis of Voltage Source and Current Source
... current and voltage generation for shunt and series converter of UPQC is based on Phase Locked Loop and Synchronous reference frame theory. Simulations have been carried out in MATLAB Simulink platform. The simulation results for both CSC based UPQC and VSC based UPQC are compared and presented. ...
... current and voltage generation for shunt and series converter of UPQC is based on Phase Locked Loop and Synchronous reference frame theory. Simulations have been carried out in MATLAB Simulink platform. The simulation results for both CSC based UPQC and VSC based UPQC are compared and presented. ...
NEW KENWOOD
... • Redesigned front panel features non-protruding controls. • 24 preset station frequencies can be entered into memory via the 6 program keys. Present Scan recalls them in sequence. Also Seek and Manual digital tuning. ...
... • Redesigned front panel features non-protruding controls. • 24 preset station frequencies can be entered into memory via the 6 program keys. Present Scan recalls them in sequence. Also Seek and Manual digital tuning. ...
Keysight Technologies Load
... The device is made of a piece of metal that was tempered and therefore functions as a spring. At least four strain gauges are bonded to the inner surface to form a configuration similar to a Wheatstone bridge (see Figure 1). The strain gauge mimics the Wheatstone bridge configuration to convert a ce ...
... The device is made of a piece of metal that was tempered and therefore functions as a spring. At least four strain gauges are bonded to the inner surface to form a configuration similar to a Wheatstone bridge (see Figure 1). The strain gauge mimics the Wheatstone bridge configuration to convert a ce ...
JH2215651570
... The organization of this thesis are given as follows, In chapter 2, the general magnetic design principles for low voltage, high current converters were discussed. The method for selecting proper core material, core shape and the physical dimensions of the conductor suitable for such applications is ...
... The organization of this thesis are given as follows, In chapter 2, the general magnetic design principles for low voltage, high current converters were discussed. The method for selecting proper core material, core shape and the physical dimensions of the conductor suitable for such applications is ...
PDF
... This paper presents the control of a multilevel inverter supplied by a Photovoltaic (PV) panel and a batteries bank. It is well known that the power quality of multilevel inverter signals depends on their number of levels. However, the question that arises is whether there is a limit beyond which it ...
... This paper presents the control of a multilevel inverter supplied by a Photovoltaic (PV) panel and a batteries bank. It is well known that the power quality of multilevel inverter signals depends on their number of levels. However, the question that arises is whether there is a limit beyond which it ...
Specifications
... This unit is common for the relays modules type “ERP” and can use one or more relays. Floor-standing unit, mounted in anodized aluminum structure and panels of painted steel, enabling wide range of protection relay investigations. It uses genuine industrial application relays, not simulations, with ...
... This unit is common for the relays modules type “ERP” and can use one or more relays. Floor-standing unit, mounted in anodized aluminum structure and panels of painted steel, enabling wide range of protection relay investigations. It uses genuine industrial application relays, not simulations, with ...
NC7WBD3125 2-Bit Low Power Bus Switch with Level Shifting NC7 WBD3
... The NC7WBD3125 is a 2-bit ultra high-speed CMOS FET bus switch with enhanced level shifting circuitry and with TTL-compatible active LOW control inputs. The low On Resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional groun ...
... The NC7WBD3125 is a 2-bit ultra high-speed CMOS FET bus switch with enhanced level shifting circuitry and with TTL-compatible active LOW control inputs. The low On Resistance of the switch allows inputs to be connected to outputs with minimal propagation delay and without generating additional groun ...
section 16280
... Continuously sense the power factor and, when the power factor differs from the target setting for more than 10 seconds, operate a contactor to switch a capacitor bank into or out of the circuit. a. Contactors open or close to correct circuit power factor closer to the target setting. b. Switch only ...
... Continuously sense the power factor and, when the power factor differs from the target setting for more than 10 seconds, operate a contactor to switch a capacitor bank into or out of the circuit. a. Contactors open or close to correct circuit power factor closer to the target setting. b. Switch only ...
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.