The battery IC and battery protection IC
... EUP8202 is a current mode of operation The input voltage, high device: step-down PWM constant current absolute maximum rating 28V switching architecture, constant Wide working voltage range, v. 2.0 voltage of lithium ion battery ~ 16: V charger, its working frequency for constant 500kHz. But one day ...
... EUP8202 is a current mode of operation The input voltage, high device: step-down PWM constant current absolute maximum rating 28V switching architecture, constant Wide working voltage range, v. 2.0 voltage of lithium ion battery ~ 16: V charger, its working frequency for constant 500kHz. But one day ...
AUDIO POWER AMPLIFIERS Introduction
... In class C operation, somewhat less than half of the input signal appears amplified at the output. The output signal waveform is high distorted and rich in harmonic. Generally, in class C amplifier, load is a tuned circuit, which selects the fundamental or the desired harmonic rejecting all other fr ...
... In class C operation, somewhat less than half of the input signal appears amplified at the output. The output signal waveform is high distorted and rich in harmonic. Generally, in class C amplifier, load is a tuned circuit, which selects the fundamental or the desired harmonic rejecting all other fr ...
AUDIO POWER AMPLIFIERS Introduction
... In class C operation, somewhat less than half of the input signal appears amplified at the output. The output signal waveform is high distorted and rich in harmonic. Generally, in class C amplifier, load is a tuned circuit, which selects the fundamental or the desired harmonic rejecting all other fr ...
... In class C operation, somewhat less than half of the input signal appears amplified at the output. The output signal waveform is high distorted and rich in harmonic. Generally, in class C amplifier, load is a tuned circuit, which selects the fundamental or the desired harmonic rejecting all other fr ...
BDTIC
... propagation delay time. The PX3517 is also capable of driving two external MOSFETs into the OFF state. When the PWM signal level enters the shut down window or tri-state (typically between 1.2V and 2V), after the shut down hold off time has expired, both MOSFETs are switched off. This feature is use ...
... propagation delay time. The PX3517 is also capable of driving two external MOSFETs into the OFF state. When the PWM signal level enters the shut down window or tri-state (typically between 1.2V and 2V), after the shut down hold off time has expired, both MOSFETs are switched off. This feature is use ...
23.1 0.45-V Input On-Chip Gate Boosted (OGB) Buck Converter in
... A 0.45-V input, 0.4-V output on-chip gate boosted (OGB) buck converter with clock gated digital PWM controller in 40-nm CMOS achieved the highest efficiency to date with the output power less than 40μW. A linear delay trimming by a logarithmic stress voltage (LSV) scheme to compensate for the die-to ...
... A 0.45-V input, 0.4-V output on-chip gate boosted (OGB) buck converter with clock gated digital PWM controller in 40-nm CMOS achieved the highest efficiency to date with the output power less than 40μW. A linear delay trimming by a logarithmic stress voltage (LSV) scheme to compensate for the die-to ...
Sep 1999 Comparator Circuit Provides Automatic Shutdown of the LT1795 High Speed ADSL Power Amplifier
... amplifier. If the signal on either input exceeds the threshold set by the sensitivity adjustment (shown to provide a range from 65mV to 500mV peak), the output of one or the other of the comparators goes high immediately and puts the LT1795 into action. The LT1720 comparators feature a propagation d ...
... amplifier. If the signal on either input exceeds the threshold set by the sensitivity adjustment (shown to provide a range from 65mV to 500mV peak), the output of one or the other of the comparators goes high immediately and puts the LT1795 into action. The LT1720 comparators feature a propagation d ...
Conditioning a Switch-mode Power Supply Current Signal Using TI
... proposed. Using a differential amplifier made up of a low-power op amp and discrete resistors can result in several advantages including lower power dissipation (efficiency), noise immunity, cost, and programmability. ...
... proposed. Using a differential amplifier made up of a low-power op amp and discrete resistors can result in several advantages including lower power dissipation (efficiency), noise immunity, cost, and programmability. ...
OCR`ed version
... There are plenty of flashing LED circuits about that can be used for the star on the top of your Christmas tree. One problem with LED arrangements is that they can barely be seen during bright daylight hours, or when the tree is brightly illuminated by a nearby lamp. The circuit in Figure 1 is desig ...
... There are plenty of flashing LED circuits about that can be used for the star on the top of your Christmas tree. One problem with LED arrangements is that they can barely be seen during bright daylight hours, or when the tree is brightly illuminated by a nearby lamp. The circuit in Figure 1 is desig ...
UCN5804 - Allegro Microsystems
... many L/R applications, this substrate current is high enough to adversely affect the logic circuitry and cause misstepping. External series diodes (Schottky are recommended for increased efficiency at low-voltage operation) will prevent substrate current from being sourced through the outputs. Alter ...
... many L/R applications, this substrate current is high enough to adversely affect the logic circuitry and cause misstepping. External series diodes (Schottky are recommended for increased efficiency at low-voltage operation) will prevent substrate current from being sourced through the outputs. Alter ...
LED Dimmer
... 2. The plot generated from the transient analysis of the circuit in Figure 1 where the value of Ra is changed to 1 kΩ. 3. The plot generated from the transient analysis of the circuit in Figure 1 where the value of Ra is changed to 100 Ω. 4. The plot generated from the transient analysis of the circ ...
... 2. The plot generated from the transient analysis of the circuit in Figure 1 where the value of Ra is changed to 1 kΩ. 3. The plot generated from the transient analysis of the circuit in Figure 1 where the value of Ra is changed to 100 Ω. 4. The plot generated from the transient analysis of the circ ...
SG6742WMR Highly Integrated Green-Mode PWM Controller
... The FB voltage increases every time the output of the power supply is shorted or overloaded. If the FB voltage remains higher than a built-in threshold for longer than tD-OLP, PWM output is turned off. As PWM output is turned off, VDD begins decreasing. When VDD goes below the turn-off threshold (~9 ...
... The FB voltage increases every time the output of the power supply is shorted or overloaded. If the FB voltage remains higher than a built-in threshold for longer than tD-OLP, PWM output is turned off. As PWM output is turned off, VDD begins decreasing. When VDD goes below the turn-off threshold (~9 ...
App Note 509 - What is Regulation and Repeatability?
... High performance applications In most capacitor charging application repeatability of 1% is typical and acceptable, however in certain applications such as Excimer lasers in semiconductor lithography, the repeatability requirements can be extreme (0.1%) and are made more challenging with small load ...
... High performance applications In most capacitor charging application repeatability of 1% is typical and acceptable, however in certain applications such as Excimer lasers in semiconductor lithography, the repeatability requirements can be extreme (0.1%) and are made more challenging with small load ...
How adjustable speed drives affect power distribution
... HP). SCR converters control the dc link voltage by switching on (or “gating”) current flow for a portion of the applied sine wave and switching off at the zerocrossing points. Unlike diodes, SCRs require control circuits for gate firing. ...
... HP). SCR converters control the dc link voltage by switching on (or “gating”) current flow for a portion of the applied sine wave and switching off at the zerocrossing points. Unlike diodes, SCRs require control circuits for gate firing. ...
STK4151V AF Power Amplifier (Split Power Supply) (30W + 30W
... For power supply at the time of test, use a constant-voltage power supply unless otherwise specified. * For measurement of the available time for load short-circuit and output noise voltage, use the specified transformer power supply shown right. ** The output noise voltage is represented by the pea ...
... For power supply at the time of test, use a constant-voltage power supply unless otherwise specified. * For measurement of the available time for load short-circuit and output noise voltage, use the specified transformer power supply shown right. ** The output noise voltage is represented by the pea ...
FEATURING - SAF OPAL STARTERS
... · Closed loop current regulation provides consistent torque, independent of the line voltage. · Direct power connections to the OP-STOP’s input and output terminals eliminate the need for power contactors. · Suitable for all input voltages from 200 VAC to 600 VAC, 50/60Hz (No adjustment necessary). ...
... · Closed loop current regulation provides consistent torque, independent of the line voltage. · Direct power connections to the OP-STOP’s input and output terminals eliminate the need for power contactors. · Suitable for all input voltages from 200 VAC to 600 VAC, 50/60Hz (No adjustment necessary). ...
Target Datasheet
... circuit, error amplifier, internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize ...
... circuit, error amplifier, internal PMOS and etc. The PWM control circuit is able to adjust the duty ratio linearly from 0 to 100%. An enable function, an over current protection function and a short circuit protection function are built inside. An internal compensation block is built in to minimize ...
Datasheet
... The LDO is internally supplying most parts of the PWM controller. The load current considered here is an extra current (in order to supply an external driver for example). ...
... The LDO is internally supplying most parts of the PWM controller. The load current considered here is an extra current (in order to supply an external driver for example). ...
FDMF6705V - Extra-Small, High-Performance, High- Frequency DrMOS Module FDMF6705V - Extra-S m
... MOSFET dynamic performance, system inductance, and Power MOSFET RDS(ON). XS™ DrMOS uses Fairchild's high-performance PowerTrench® MOSFET technology, which dramatically reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications. A new driver IC with reduced ...
... MOSFET dynamic performance, system inductance, and Power MOSFET RDS(ON). XS™ DrMOS uses Fairchild's high-performance PowerTrench® MOSFET technology, which dramatically reduces switch ringing, eliminating the need for a snubber circuit in most buck converter applications. A new driver IC with reduced ...
RADAR BY HUGH LUPO
... Both the transmitter and receiver are in continues mode, Not Pulsing. This gives a big advantage with targets, and enhances close in targets The targets are compared to the tx frequency when received and the difference between The Tx and Rx echo frequency to measure the distance. The rest of the sys ...
... Both the transmitter and receiver are in continues mode, Not Pulsing. This gives a big advantage with targets, and enhances close in targets The targets are compared to the tx frequency when received and the difference between The Tx and Rx echo frequency to measure the distance. The rest of the sys ...
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.