Schmitt Trigger
... d. Assuming, as is shown, that R2 = 10k Ohms, what must the value of R3 be to cause the output measured across R4 to switch at these voltages? For the case where the output is high (8.6V) the switch point is 4.87=(10k/(R3+10k))*3+(R3/(R3+10k))*8.6 and where the output is low (.4V) the switch point i ...
... d. Assuming, as is shown, that R2 = 10k Ohms, what must the value of R3 be to cause the output measured across R4 to switch at these voltages? For the case where the output is high (8.6V) the switch point is 4.87=(10k/(R3+10k))*3+(R3/(R3+10k))*8.6 and where the output is low (.4V) the switch point i ...
Sorensen XEL Series 15–250 V 360 mA–6 A 75–180 W
... series occupies the least bench top space of any programmable power supply. The dual output model offers 90W per channel, also in a compact 8.4x11.3 inches (216mm x 287mm) The dual output XEL30-3D is two 30V/3A power supplies in one unit. All of the features of the single output version are also in ...
... series occupies the least bench top space of any programmable power supply. The dual output model offers 90W per channel, also in a compact 8.4x11.3 inches (216mm x 287mm) The dual output XEL30-3D is two 30V/3A power supplies in one unit. All of the features of the single output version are also in ...
Thermal Management
... Operational Amplifiers Microchip’s op amp portfolio offers over 100 unique products spanning bandwidths from 9 kHz up to 60 MHz. All of Microchip’s op amps are designed on a low power CMOS process and support operating voltages as low as 1.4V. All amplifiers offer extremely low quiescent current for ...
... Operational Amplifiers Microchip’s op amp portfolio offers over 100 unique products spanning bandwidths from 9 kHz up to 60 MHz. All of Microchip’s op amps are designed on a low power CMOS process and support operating voltages as low as 1.4V. All amplifiers offer extremely low quiescent current for ...
LB11870 - ONSemi
... This IC provides a rotor constraint protection circuit to protect the IC itself and the motor when the motor is constrained. If the LD output is high (unlocked) for over a certain fixed period with the IC in the start state, the low side transistor will be turned off. The time constant is determined ...
... This IC provides a rotor constraint protection circuit to protect the IC itself and the motor when the motor is constrained. If the LD output is high (unlocked) for over a certain fixed period with the IC in the start state, the low side transistor will be turned off. The time constant is determined ...
Kosterev and Undrill
... - Actual events of Fault-Induced Delayed Voltage Recovery have been observed in parts of WECC. The phenomenon is due to stalling of single-phase compressor motors (such as in residential air-conditioners and refrigeration), that can occur during a normally cleared fault, and cannot be prevented. Sys ...
... - Actual events of Fault-Induced Delayed Voltage Recovery have been observed in parts of WECC. The phenomenon is due to stalling of single-phase compressor motors (such as in residential air-conditioners and refrigeration), that can occur during a normally cleared fault, and cannot be prevented. Sys ...
12 volt power supply
... and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer e ...
... and, as a result, power supplies are sometimes referred to as electric power converters. Some power supplies are discrete, stand-alone devices, whereas others are built into larger devices along with their loads. Examples of the latter include power supplies found in desktop computers and consumer e ...
Design of Three Phase PWM Voltage Source Inverter
... one that takes in a fixed voltage from a device, such as a dc power supply, and converts it to a variable-frequency AC supply. VSI are divided up into three categories: Pulse-width Modulated (PWM)Inverters, Square-wave Inverters, and Single-phase Inverters with Voltage Cancellation. This paper will ...
... one that takes in a fixed voltage from a device, such as a dc power supply, and converts it to a variable-frequency AC supply. VSI are divided up into three categories: Pulse-width Modulated (PWM)Inverters, Square-wave Inverters, and Single-phase Inverters with Voltage Cancellation. This paper will ...
1 Introduction This reference design provides a
... instances. For certain market, such as fan, pumps, and blowers etc which do not require high accuracy speed control and fast dynamic torque response, InstaSPIN-BLDC implementation from TI’s MSP430G2x Value line device is right way to meet low cost requirements. Some unique aspects utilized to make t ...
... instances. For certain market, such as fan, pumps, and blowers etc which do not require high accuracy speed control and fast dynamic torque response, InstaSPIN-BLDC implementation from TI’s MSP430G2x Value line device is right way to meet low cost requirements. Some unique aspects utilized to make t ...
Document
... proper operation, each submodule can be considered as a controlled voltage source where capacitor’s voltage should be maintained at a certain level. Besides, the minimization of the circulating current, which does not flow to the load, is crucial for achieving stable and efficient operation of the M ...
... proper operation, each submodule can be considered as a controlled voltage source where capacitor’s voltage should be maintained at a certain level. Besides, the minimization of the circulating current, which does not flow to the load, is crucial for achieving stable and efficient operation of the M ...
Samlex SMC-10 10A Solar Charge Controller : Modern Outpost
... Looking for an excellent solar charge controller for smaller projects, and don't need the bells & whistles? The Samlex SMC-10 is the right solar charge controller for you. The SMC-10 is designed to handle up to 10A of solar array power in 12V or 24V systems. Features PWM low-loss multi-stage chargin ...
... Looking for an excellent solar charge controller for smaller projects, and don't need the bells & whistles? The Samlex SMC-10 is the right solar charge controller for you. The SMC-10 is designed to handle up to 10A of solar array power in 12V or 24V systems. Features PWM low-loss multi-stage chargin ...
OCET-2012 Question Booklet Series : A Sr. No. :
... (A) becomes double (B) remain unaltered (C) becomes 1.5 times (D) becomes 2 times 52. Base modulation is used in TV transmission because : (A) power required is small (B) large power output and better efficiency (C) high degree of linearity (D) less degree of linearity 53. Relaxation oscillator is ...
... (A) becomes double (B) remain unaltered (C) becomes 1.5 times (D) becomes 2 times 52. Base modulation is used in TV transmission because : (A) power required is small (B) large power output and better efficiency (C) high degree of linearity (D) less degree of linearity 53. Relaxation oscillator is ...
Power Factor Correction Panel
... This module consists of an electronic card to see the Thyristor switch in a capacitor with minimum voltage so that the switching current is near zero. This prevents current and voltage transients during switching in and switching out of the capacitors in the system. Even with phase reversal this mod ...
... This module consists of an electronic card to see the Thyristor switch in a capacitor with minimum voltage so that the switching current is near zero. This prevents current and voltage transients during switching in and switching out of the capacitors in the system. Even with phase reversal this mod ...
Battery Saver
... The battery saver may be built into many flashlights, remote control toys, batterypowered instruments, or even line-powered devices needing an automatic power-down mode. Timed, push-button lamps are useful outdoors to light walkways, faucets, keyholes, toolsheds or even the mailbox! Indoors, a tempo ...
... The battery saver may be built into many flashlights, remote control toys, batterypowered instruments, or even line-powered devices needing an automatic power-down mode. Timed, push-button lamps are useful outdoors to light walkways, faucets, keyholes, toolsheds or even the mailbox! Indoors, a tempo ...
POWER PULSE pe86CB-20-3-9-S-GD_e.indd.indd - Hendor
... Ripple less than < 0.5 % (related to nominal DC value) Complex waveforms Constant current regulation (standard) RS485-interface (optional: PROFIBUS or TCP/IP) MMC/SD card reader for software update, import / export of device configuration, set values and storing of bus-logging data Fast rise and fal ...
... Ripple less than < 0.5 % (related to nominal DC value) Complex waveforms Constant current regulation (standard) RS485-interface (optional: PROFIBUS or TCP/IP) MMC/SD card reader for software update, import / export of device configuration, set values and storing of bus-logging data Fast rise and fal ...
Low Cost Pure Sine Wave Solar Inverter Circuit
... q Solar energy is readily available. However, the DC voltage generated by a solar panel must be inverted to an AC voltage to be compatible with our electric grid. q Modern pure sine wave inverters are very expensive, often ranging above $100. ...
... q Solar energy is readily available. However, the DC voltage generated by a solar panel must be inverted to an AC voltage to be compatible with our electric grid. q Modern pure sine wave inverters are very expensive, often ranging above $100. ...
WACKER - 0610065 Internal Vibrator, 5 m hose
... Effective compaction Ø (depending on consistency) Vibration frequency Drive engine ...
... Effective compaction Ø (depending on consistency) Vibration frequency Drive engine ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... considerations. Such systems have greatly increased the ability of system operators to maintain complete and timely information on system conditions and to rapidly take appropriate action during trouble periods. Thus with the use of SCADA system the problems faced by the operators in power system ca ...
... considerations. Such systems have greatly increased the ability of system operators to maintain complete and timely information on system conditions and to rapidly take appropriate action during trouble periods. Thus with the use of SCADA system the problems faced by the operators in power system ca ...
Project report STEPPER MOTOR
... The size of this step is dependent on the teeth arrangement of the motor, but a common value is 1.8 degrees, or 200 steps per revolution. Speed control is achieved by simply varying the frequency of the square waves. ...
... The size of this step is dependent on the teeth arrangement of the motor, but a common value is 1.8 degrees, or 200 steps per revolution. Speed control is achieved by simply varying the frequency of the square waves. ...
Lab #13 Complex Power - Northern Arizona University
... 1. Electric machines, such as found in manufacturing plants and in home appliances like refrigerators and washing machines, consists of many windings of wire. As seen by the power lines, the equivalent load of these electric machines is inductive. 2. The power company prefers to provide power to loa ...
... 1. Electric machines, such as found in manufacturing plants and in home appliances like refrigerators and washing machines, consists of many windings of wire. As seen by the power lines, the equivalent load of these electric machines is inductive. 2. The power company prefers to provide power to loa ...
BASIC ELEMENTS AND COMPONENTS OF AN AMPLIFIER
... Basic Elements of an Amplifier Though the basic explanation of an amplifier was explained above, the making of it is far more complex. We know that there are two signals generated during the process. They are the input signal and the output signal. The input signal is completely different from the o ...
... Basic Elements of an Amplifier Though the basic explanation of an amplifier was explained above, the making of it is far more complex. We know that there are two signals generated during the process. They are the input signal and the output signal. The input signal is completely different from the o ...
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.