Ch6 MOSFETS HSD_LSD PART 1 - Bridging Theory into Practice
... • Lamps and RC networks can experience significant “in-rush” current when they are initially turned on • When a lamp initially turns on, the filament is cold, and has a relatively low resistance • As the filament warms up, the resistance increases dramatically (often by an order of magnitude) ...
... • Lamps and RC networks can experience significant “in-rush” current when they are initially turned on • When a lamp initially turns on, the filament is cold, and has a relatively low resistance • As the filament warms up, the resistance increases dramatically (often by an order of magnitude) ...
TDA8920C 2 x 110 W class-D power amplifier
... The amplifier output signal is a PWM signal with a typical carrier frequency of between 250 kHz and 450 kHz. A 2nd-order LC demodulation filter on the output is used to convert the PWM signal into an analog audio signal. The carrier frequency is determined by an external resistor, ROSC, connected be ...
... The amplifier output signal is a PWM signal with a typical carrier frequency of between 250 kHz and 450 kHz. A 2nd-order LC demodulation filter on the output is used to convert the PWM signal into an analog audio signal. The carrier frequency is determined by an external resistor, ROSC, connected be ...
A SiGe PA With Dual Dynamic Bias Control and Handset Applications
... average power efficiency and near-constant power gain for WCDMA Class 3 handset power amplifiers. In addition, an off-chip memoryless digital predistortion (DP) [10]–[14] based on the measured AM-AM and AM-PM characteristics is also employed to substantially improve the linearity of the PA. The resu ...
... average power efficiency and near-constant power gain for WCDMA Class 3 handset power amplifiers. In addition, an off-chip memoryless digital predistortion (DP) [10]–[14] based on the measured AM-AM and AM-PM characteristics is also employed to substantially improve the linearity of the PA. The resu ...
OP282
... excellent speed at exceptionally low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 4 MHz. ...
... excellent speed at exceptionally low supply currents. The slew rate is typically 9 V/μs with a supply current under 250 μA per amplifier. These unity-gain stable amplifiers have a typical gain bandwidth of 4 MHz. ...
Transient Suppression: Switching Power Supplies
... Transient Suppression: Switching Power Supplies Application Note Although the concepts stated are universal, this application note was written specifically for Interpoint products. Power line transient requirements are a subject which should be addressed at the beginning of a project, not in the lat ...
... Transient Suppression: Switching Power Supplies Application Note Although the concepts stated are universal, this application note was written specifically for Interpoint products. Power line transient requirements are a subject which should be addressed at the beginning of a project, not in the lat ...
Lab 2 Document (Word format)
... also called the plant. Sensors and signal conditioning may be used to transform a mechanical variable (e.g. flow, speed, pressure, temperature) into electrical signals. In some cases such as OP AMPs, the signals may already be electrical quantities such as voltage or current. An error signal is prod ...
... also called the plant. Sensors and signal conditioning may be used to transform a mechanical variable (e.g. flow, speed, pressure, temperature) into electrical signals. In some cases such as OP AMPs, the signals may already be electrical quantities such as voltage or current. An error signal is prod ...
Laboratory work #3
... The capacitor will charge up to the level of U INPMAX - 0.7V (this voltage level is less than the input voltage by the value of the direct voltage drop across the diode). Thus, during the positive half-wave the diode is closed. Within the period of oscillation the capacitor will discharge slightly a ...
... The capacitor will charge up to the level of U INPMAX - 0.7V (this voltage level is less than the input voltage by the value of the direct voltage drop across the diode). Thus, during the positive half-wave the diode is closed. Within the period of oscillation the capacitor will discharge slightly a ...
74VHC4040 12-Stage Binary Counter 74VHC4040 12-Sta
... The VHC4040 is an advanced high-speed CMOS device fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC4040 is a 12-stage counter which increments on the negative edge of ...
... The VHC4040 is an advanced high-speed CMOS device fabricated with silicon gate CMOS technology. It achieves the high-speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation. The VHC4040 is a 12-stage counter which increments on the negative edge of ...
TDA8950 1. General description 2
... The amplifier output signal is a PWM signal with a typical carrier frequency of between 250 kHz and 450 kHz. A 2nd-order LC demodulation filter on the output is used to convert the PWM signal into an analog audio signal. The carrier frequency is determined by an external resistor, ROSC, connected be ...
... The amplifier output signal is a PWM signal with a typical carrier frequency of between 250 kHz and 450 kHz. A 2nd-order LC demodulation filter on the output is used to convert the PWM signal into an analog audio signal. The carrier frequency is determined by an external resistor, ROSC, connected be ...
POWER ANALYZER 3390
... ○ The voltage / current fundamental wave component “θ” from the machine angle origin can be calculated by performing harmonic analysis of motor input voltage / current by synchronizing to the A-phase signal and z-phase signal of an encoder. ○ A function to perform zero compensation for this phase an ...
... ○ The voltage / current fundamental wave component “θ” from the machine angle origin can be calculated by performing harmonic analysis of motor input voltage / current by synchronizing to the A-phase signal and z-phase signal of an encoder. ○ A function to perform zero compensation for this phase an ...
RF2514 VHF/UHF TRANSMITTER Features
... The charge pump consists of two transistors, one for charging the loop filter and the other for discharging the loop filter. The charge pump inputs are the outputs of the phase detector flip-flops. If both amplifier inputs are low, then the amplifier pair goes into a high impedance state, maintainin ...
... The charge pump consists of two transistors, one for charging the loop filter and the other for discharging the loop filter. The charge pump inputs are the outputs of the phase detector flip-flops. If both amplifier inputs are low, then the amplifier pair goes into a high impedance state, maintainin ...
Si3210/15/16 DC-DC CONVERTER
... current during the on-time. With a value of 200 , R16 does an adequate job of turning Q7 off and only takes 3 mA from the base current during on-time. ...
... current during the on-time. With a value of 200 , R16 does an adequate job of turning Q7 off and only takes 3 mA from the base current during on-time. ...
PDF - rtvcenter.com
... pixel, the proper row is switched on, and then a charge is sent down the correct column. Since all of the other rows that the column intersects are turned off, only the capacitor at the designated pixel receives a charge. The capacitor is able to hold the charge until the next refresh cycle. And if ...
... pixel, the proper row is switched on, and then a charge is sent down the correct column. Since all of the other rows that the column intersects are turned off, only the capacitor at the designated pixel receives a charge. The capacitor is able to hold the charge until the next refresh cycle. And if ...
W-band push–push monolithic frequency doubler in 1
... Imax is the maximum current, t0 is the length of the pulse, and T is the period corresponding to the fundamental frequency. To maximize the amplitude of the second harmonic, the conduction duty cycle for each transistor should be chosen such as t0 /T D 32%Œ9 . However, this would sacrifice the valu ...
... Imax is the maximum current, t0 is the length of the pulse, and T is the period corresponding to the fundamental frequency. To maximize the amplitude of the second harmonic, the conduction duty cycle for each transistor should be chosen such as t0 /T D 32%Œ9 . However, this would sacrifice the valu ...
Means for minmizing pulse reflections in linear delay lines loaded
... that the grid be raised to +2 volts at a rapid rate (in and direction of the applied voltage. These diodes, to practice, the rate of 100 volts per microsecond), kept gether with their associated circuit elements, present a close to +2 volts for somewhat less than one-half micro nonlinear load termin ...
... that the grid be raised to +2 volts at a rapid rate (in and direction of the applied voltage. These diodes, to practice, the rate of 100 volts per microsecond), kept gether with their associated circuit elements, present a close to +2 volts for somewhat less than one-half micro nonlinear load termin ...
Aalborg Universitet A 3-10 GHz IR
... (M1 -M11 ). Vc1 is used to control the falling slope of the signal driving M14 and M15 for tunable pulse width. The charging switch is implemented using two cascaded PMOS transistors (M12 and M13 ). The gate of M12 is controlled by Vc2 so that the amplitude of the charging current Ic can be adjusted ...
... (M1 -M11 ). Vc1 is used to control the falling slope of the signal driving M14 and M15 for tunable pulse width. The charging switch is implemented using two cascaded PMOS transistors (M12 and M13 ). The gate of M12 is controlled by Vc2 so that the amplitude of the charging current Ic can be adjusted ...
Crest Factor
... The clock recovery circuit, whether based on a PLL or a Phase Interpolator (PI) and whether or not the reference clock is distributed, fabricates a data-rate clock signal based on the timing of the incoming waveform logic transitions. The resulting clock includes the low frequency jitter that is on ...
... The clock recovery circuit, whether based on a PLL or a Phase Interpolator (PI) and whether or not the reference clock is distributed, fabricates a data-rate clock signal based on the timing of the incoming waveform logic transitions. The resulting clock includes the low frequency jitter that is on ...
A Spiking-Neuron Collective Analog Adder with Scalable Precision
... negative input terminal. The use of this additional branch prevents charge sharing between capacitors after switching: Depending on the phase, the negative input terminal is connected either to CB or to CREF, which requires selection circuitry. The presence of the additional branch causes such selec ...
... negative input terminal. The use of this additional branch prevents charge sharing between capacitors after switching: Depending on the phase, the negative input terminal is connected either to CB or to CREF, which requires selection circuitry. The presence of the additional branch causes such selec ...
4040
... PF is expressed as decimal number between zero and one (0 and 1). A non-corrected power supply with a typical PF equal to 0.65 will draw approximately 1.5 times greater input current than a PFC supply (PF = 0.99) for the same output loading. The non-corrected supply requires additional AC current to ...
... PF is expressed as decimal number between zero and one (0 and 1). A non-corrected power supply with a typical PF equal to 0.65 will draw approximately 1.5 times greater input current than a PFC supply (PF = 0.99) for the same output loading. The non-corrected supply requires additional AC current to ...
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.