Power Issues in Embedded Systems
... System level power management Heuristics for transiting between various power modes Operating environment sensitive power ...
... System level power management Heuristics for transiting between various power modes Operating environment sensitive power ...
FAN3268 2 A Low-Voltage PMOS-NMOS Bridge Driver F AN3
... function that prevents the output switching devices from operating if the VDD supply voltage is below the operating level. When VDD is rising, but below the 3.9 V operational level, internal 100 kΩ resistors bias the noninverting output low and the inverting output to VDD to keep the external MOSFET ...
... function that prevents the output switching devices from operating if the VDD supply voltage is below the operating level. When VDD is rising, but below the 3.9 V operational level, internal 100 kΩ resistors bias the noninverting output low and the inverting output to VDD to keep the external MOSFET ...
2 Wire Electronic Time Delay Switch
... If further DS2’s are required to control the same load they must have all corresponding terminals wired in parallel with these on the first DS2. ...
... If further DS2’s are required to control the same load they must have all corresponding terminals wired in parallel with these on the first DS2. ...
Reference Design Report for a 150 W Power Factor Corrected LLC
... Components R34 and C25 provide filtering and bypassing of the +12 V input and the VCC supply for U1. Note: VCC voltage of >15 V may damage U3. Voltage divider resistors R26-29 set the high-voltage turn-on, turn-off, and overvoltage thresholds of U3. The voltage divider values are chosen to set the L ...
... Components R34 and C25 provide filtering and bypassing of the +12 V input and the VCC supply for U1. Note: VCC voltage of >15 V may damage U3. Voltage divider resistors R26-29 set the high-voltage turn-on, turn-off, and overvoltage thresholds of U3. The voltage divider values are chosen to set the L ...
Rockwell Automation Allen-Bradley Specification SMC
... b.) Soft stop shall be initiated by a dedicated Soft Stop input. A coast-to-rest stop shall still be possible with a separate stop input. c.) Stop time programmable from 0 to 999 seconds. d.) The load shall stop when the motor voltage drops to a point where the load torque is greater than the motor ...
... b.) Soft stop shall be initiated by a dedicated Soft Stop input. A coast-to-rest stop shall still be possible with a separate stop input. c.) Stop time programmable from 0 to 999 seconds. d.) The load shall stop when the motor voltage drops to a point where the load torque is greater than the motor ...
Rockwell Automation Allen-Bradley Specification SMC
... b.) Soft stop shall be initiated by a dedicated Soft Stop input. A coast-to-rest stop shall still be possible with a separate stop input. c.) Stop time programmable from 0 to 999 seconds. d.) The load shall stop when the motor voltage drops to a point where the load torque is greater than the motor ...
... b.) Soft stop shall be initiated by a dedicated Soft Stop input. A coast-to-rest stop shall still be possible with a separate stop input. c.) Stop time programmable from 0 to 999 seconds. d.) The load shall stop when the motor voltage drops to a point where the load torque is greater than the motor ...
Riding the Reflected Wave - Engineering School Class Web Sites
... BJT and GTO devices have current controlled gates. The current controlled gate circuits are somewhat complex. IGBTs have voltage controlled gates. The voltage controlled gate circuits are simpler and faster. IGBTs interface more easily with drive low voltage control circuitry. VFD using IGBTs can op ...
... BJT and GTO devices have current controlled gates. The current controlled gate circuits are somewhat complex. IGBTs have voltage controlled gates. The voltage controlled gate circuits are simpler and faster. IGBTs interface more easily with drive low voltage control circuitry. VFD using IGBTs can op ...
Experiment 4 - Portal UniMAP
... because it is used to produce the fixed magnetic field in the dc motor. A rheostat connected in series with the electromagnet winding can be used to vary the field current. Figure 4.1 illustrates how the speed versus armature voltage of a separatelyexcited dc motor is affected when the field current ...
... because it is used to produce the fixed magnetic field in the dc motor. A rheostat connected in series with the electromagnet winding can be used to vary the field current. Figure 4.1 illustrates how the speed versus armature voltage of a separatelyexcited dc motor is affected when the field current ...
MAX1183 Dual 10-Bit, 40Msps, 3V, Low-Power ADC with General Description
... The MAX1183 is a 3V, dual 10-bit analog-to-digital converter (ADC) featuring fully differential wideband trackand-hold (T/H) inputs, driving two pipelined, nine-stage ADCs. The MAX1183 is optimized for low-power, high dynamic performance applications in imaging, instrumentation, and digital communic ...
... The MAX1183 is a 3V, dual 10-bit analog-to-digital converter (ADC) featuring fully differential wideband trackand-hold (T/H) inputs, driving two pipelined, nine-stage ADCs. The MAX1183 is optimized for low-power, high dynamic performance applications in imaging, instrumentation, and digital communic ...
Power MOSFET 9 A, 52 V, N-Channel, Logic Level
... Peak repetitive pulsed power limits are determined by using the thermal response data in conjunction with the procedures discussed in AN569, “Transient Thermal Resistance − General Data and Its Use.” Switching between the off−state and the on−state may traverse any load line provided neither rated p ...
... Peak repetitive pulsed power limits are determined by using the thermal response data in conjunction with the procedures discussed in AN569, “Transient Thermal Resistance − General Data and Its Use.” Switching between the off−state and the on−state may traverse any load line provided neither rated p ...
Pulse and Pulse Processing
... 4th. Winter School on Astro-Particle Physics (WAPP 2009) Mayapuri, Darjeeling ...
... 4th. Winter School on Astro-Particle Physics (WAPP 2009) Mayapuri, Darjeeling ...
TPS75003 - Texas Instruments
... solution for FPGA, DSP and other multi-supply applications. The device has been tested with and meets all of the Xilinx Spartan-3, Spartan-3E and Spartan-3L start-up profile requirements, including monotonic voltage ramp and minimum voltage rail rise time. Independent Enables for each output allow s ...
... solution for FPGA, DSP and other multi-supply applications. The device has been tested with and meets all of the Xilinx Spartan-3, Spartan-3E and Spartan-3L start-up profile requirements, including monotonic voltage ramp and minimum voltage rail rise time. Independent Enables for each output allow s ...
MAX5811 10-Bit, Low-Power, 2-Wire Interface, Serial, Voltage-Output DAC General Description
... and/or data words. Each transmit sequence is framed by a START (S) or REPEATED START (Sr) condition and a STOP (P) condition. Each word transmitted over the bus is 8 bits long and is always followed by an acknowledge clock pulse. The MAX5811 SDA and SCL drivers are open-drain outputs, requiring a pu ...
... and/or data words. Each transmit sequence is framed by a START (S) or REPEATED START (Sr) condition and a STOP (P) condition. Each word transmitted over the bus is 8 bits long and is always followed by an acknowledge clock pulse. The MAX5811 SDA and SCL drivers are open-drain outputs, requiring a pu ...
What will happen when when armature winding of a dc shunt motor
... are hard to start because they need a lot of power up front. Three phase, also called polyphase, AC motors are usually found in industrial settings. These motors also have high starting power built transmit lower levels of overall power. AC power gets its name from the fact that it alternates in pow ...
... are hard to start because they need a lot of power up front. Three phase, also called polyphase, AC motors are usually found in industrial settings. These motors also have high starting power built transmit lower levels of overall power. AC power gets its name from the fact that it alternates in pow ...
EVOLUTION OF DIGITALLY CONTROLLED OSCILLATORS
... flow and circuit techniques required are analog intensive and utilize process technologies that are incompatible with a DBB [7]. Deep-submicrometer CMOS processes present new integration opportunities on one hand, but make it extremely difficult to implement traditional analog circuits, on the other ...
... flow and circuit techniques required are analog intensive and utilize process technologies that are incompatible with a DBB [7]. Deep-submicrometer CMOS processes present new integration opportunities on one hand, but make it extremely difficult to implement traditional analog circuits, on the other ...
Rajasthan Technical University, Kota COURSE - FILE
... 1. A transmission line of inductance 0.1 H and resistance 5 short circuited at t = 0, at the far end of a transmission line and is supplied by an ac t+150πsource of voltage v = 100 sin (100 ). Write the expression for the short circuit current, i(t). Find the approximate value of the first current m ...
... 1. A transmission line of inductance 0.1 H and resistance 5 short circuited at t = 0, at the far end of a transmission line and is supplied by an ac t+150πsource of voltage v = 100 sin (100 ). Write the expression for the short circuit current, i(t). Find the approximate value of the first current m ...
BA30E00WHFP
... 6) Testing on application boards When testing the IC on an application board, connecting a capacitor to a pin with low impedance subjects the IC to stress. Always discharge capacitors after each process or step. Always turn the IC's power supply off before connecting it to or removing it from a jig ...
... 6) Testing on application boards When testing the IC on an application board, connecting a capacitor to a pin with low impedance subjects the IC to stress. Always discharge capacitors after each process or step. Always turn the IC's power supply off before connecting it to or removing it from a jig ...
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.