Transistor Switch and Emitter Follower Phys 3610/6610 Lab 18 Student: TA:
... 1.) Apply the input and examine the output waveform using a scope. Document the phase shift. What is the output impedance when Vout = 5 V? 2.) Let us load this transistor switch with a 10 kΩ resistor to simulate the more realistic situation where your circuit drives some other input. How does the lo ...
... 1.) Apply the input and examine the output waveform using a scope. Document the phase shift. What is the output impedance when Vout = 5 V? 2.) Let us load this transistor switch with a 10 kΩ resistor to simulate the more realistic situation where your circuit drives some other input. How does the lo ...
Actuators - University of Detroit Mercy
... • Input is pulse width modulated signal (PWM) • Pulse duration is based on a coded number from 0255 (programmed into microcontroller) • The PWM is used to turn an electric switch on and off such that a fixed DC source is intermittently applied to the motor. This reduces the effective voltage seen by ...
... • Input is pulse width modulated signal (PWM) • Pulse duration is based on a coded number from 0255 (programmed into microcontroller) • The PWM is used to turn an electric switch on and off such that a fixed DC source is intermittently applied to the motor. This reduces the effective voltage seen by ...
Behavior of three-phase induction motors with variable
... their air gap flux pattern by canceling the harmonics.7 This overlapping is higher in motor M140 and higher again in motor M120. Hence, there are greater possibilities of harmonic cancellation in motors M140 and M120. However, if we note the total harmonic distortion 共THD兲 due to the third, fifth, a ...
... their air gap flux pattern by canceling the harmonics.7 This overlapping is higher in motor M140 and higher again in motor M120. Hence, there are greater possibilities of harmonic cancellation in motors M140 and M120. However, if we note the total harmonic distortion 共THD兲 due to the third, fifth, a ...
Switched-Capacitor Converters: Big and Small
... • Switched-capacitor converters exhibit significant advantages over inductor-based converters in many applications • SC converters can be easily modeled using relatively simple analysis methods • SC converters and CMOS rectifiers make ideal power converters for sensor nodes • Modern CMOS technology ...
... • Switched-capacitor converters exhibit significant advantages over inductor-based converters in many applications • SC converters can be easily modeled using relatively simple analysis methods • SC converters and CMOS rectifiers make ideal power converters for sensor nodes • Modern CMOS technology ...
Victron BlueSolar MPPT 100/50 (12/24V-50A) Ultra
... Victron BlueSolar MPPT 100/50 (12/24V-50A) Ultra-Fast Maximum Power Point Tracking (MPPT) Especially in case of a clouded sky, when light intensity is changing continuously, an ultra-fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% com ...
... Victron BlueSolar MPPT 100/50 (12/24V-50A) Ultra-Fast Maximum Power Point Tracking (MPPT) Especially in case of a clouded sky, when light intensity is changing continuously, an ultra-fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% com ...
phase shift pwm with double two-switch bridge for high
... hold signal is given by timing circuit before starting of each charging cycle. A ramp is generated using ...
... hold signal is given by timing circuit before starting of each charging cycle. A ramp is generated using ...
High Ripple Current Loads - AMETEK Programmable Power
... For applications where there is a large ripple component in the load current (such as DC-AC inverter/DC-DC converter/DC motor loads), there are several unexpected (and undesirable) problems that can occur with source power supplies of the switchmode type. ...
... For applications where there is a large ripple component in the load current (such as DC-AC inverter/DC-DC converter/DC motor loads), there are several unexpected (and undesirable) problems that can occur with source power supplies of the switchmode type. ...
Slide 1
... Can be configured in several different ways Single-ended� mode : the analog voltages presented on the ADC channels are compared to ground. There are several selectable voltage references, which determine the range of the ADC conversion. (ex) AVCC Free-running mode (update continuously) or ...
... Can be configured in several different ways Single-ended� mode : the analog voltages presented on the ADC channels are compared to ground. There are several selectable voltage references, which determine the range of the ADC conversion. (ex) AVCC Free-running mode (update continuously) or ...
Victron BlueSolar MPPT 100/30 (12/24V-30A) Ultra
... Victron BlueSolar MPPT 100/30 (12/24V-30A) Ultra-Fast Maximum Power Point Tracking (MPPT) Especially in case of a clouded sky, when light intensity is changing continuously, an ultra-fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% com ...
... Victron BlueSolar MPPT 100/30 (12/24V-30A) Ultra-Fast Maximum Power Point Tracking (MPPT) Especially in case of a clouded sky, when light intensity is changing continuously, an ultra-fast MPPT controller will improve energy harvest by up to 30% compared to PWM charge controllers and by up to 10% com ...
Gen2 SupIRBuck™ Family
... • Programmable frequency up to 1.5MHz • 1% accurate 0.7V reference voltage • Programmable hiccup current limit • Programmable soft start • Enhanced pre-bias start up • Thermal Protection • Enable pin with Voltage monitoring capability • Power Good output • -40C to 125C operating temperature ...
... • Programmable frequency up to 1.5MHz • 1% accurate 0.7V reference voltage • Programmable hiccup current limit • Programmable soft start • Enhanced pre-bias start up • Thermal Protection • Enable pin with Voltage monitoring capability • Power Good output • -40C to 125C operating temperature ...
W30 Presentation 10-27-09
... Well known and Established Technology Known Design Time Cost Very fast Pulse by Pulse Overload Protection ...
... Well known and Established Technology Known Design Time Cost Very fast Pulse by Pulse Overload Protection ...
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
... The supply for the auxiliaries with 230 V AC and for the electronics with 24 V DC: The supply for the auxiliaries with 230 V AC and for the electronics with 24 V DC is produced in the cabinet units SINAMICS G150, S120 Cabinet Modules and S150 as a standard via built-in transformers internal to the u ...
... The supply for the auxiliaries with 230 V AC and for the electronics with 24 V DC: The supply for the auxiliaries with 230 V AC and for the electronics with 24 V DC is produced in the cabinet units SINAMICS G150, S120 Cabinet Modules and S150 as a standard via built-in transformers internal to the u ...
NCV7680-NCV3136EVB NCV7680-NCV3163 Evaluation Board User's Manual
... 5 V square wave when using external PWM. To disable PWM and run at 100% duty cycle, connect PWM Input to VP. 3. Connect the power supply, 13.2 V typical for a car battery. 4. Position switch 1 (SW1) left to turn the circuit off, and right to turn the circuit on. ...
... 5 V square wave when using external PWM. To disable PWM and run at 100% duty cycle, connect PWM Input to VP. 3. Connect the power supply, 13.2 V typical for a car battery. 4. Position switch 1 (SW1) left to turn the circuit off, and right to turn the circuit on. ...
Test1_Spring12 - UTK-EECS
... and it is terminated in a load with impedance ZL = (200j200) . Find the following: (a) Reflection coefficient at the load, (b) Input impedance Zin at the input end of the transmission line, (c) The input voltage vi(t) and input current ii(t), [Hint: simple circuit. First use phasors, then get to ...
... and it is terminated in a load with impedance ZL = (200j200) . Find the following: (a) Reflection coefficient at the load, (b) Input impedance Zin at the input end of the transmission line, (c) The input voltage vi(t) and input current ii(t), [Hint: simple circuit. First use phasors, then get to ...
H-Bridge
... as an inductor, a voltage source and a resistance. • Torque is proportional to the current • The internal voltage source is proportional to the RPM (Back-EMF) • Stall current/max torque is proportional to the internal resistance. ...
... as an inductor, a voltage source and a resistance. • Torque is proportional to the current • The internal voltage source is proportional to the RPM (Back-EMF) • Stall current/max torque is proportional to the internal resistance. ...
4 INPUTS, 2 OUTPUTS SERVO VALVE CONTROLLER
... signal outputs with voltage and current signal generation. The controller’s flexible circuit design gives the user a wide range of configurable input types. The sophisticated control algorithms allow the user to program the controller for a wide range of applications without the need for custom soft ...
... signal outputs with voltage and current signal generation. The controller’s flexible circuit design gives the user a wide range of configurable input types. The sophisticated control algorithms allow the user to program the controller for a wide range of applications without the need for custom soft ...
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.