Week22_revised_Motor_Control_PWM
... motor whine is outside the normal human hearing range (20 – 20,000 Hz). If your motor driver circuitry uses MOSFETs, the PWM frequency should never exceed the switching speed of the MOSFET. Because of the weight of the motor armature and its inertia, the motor speed won't vary noticeable between e ...
... motor whine is outside the normal human hearing range (20 – 20,000 Hz). If your motor driver circuitry uses MOSFETs, the PWM frequency should never exceed the switching speed of the MOSFET. Because of the weight of the motor armature and its inertia, the motor speed won't vary noticeable between e ...
投影片 1
... the relationship between voltage and current — unless you have an exact curve for each device. With equipment containing many solid-state devices, such an approach is impossible. Nonlinear loads are switched on for only part of the cycle, as in a thyristor-controlled circuit, or pulsed, as in a cont ...
... the relationship between voltage and current — unless you have an exact curve for each device. With equipment containing many solid-state devices, such an approach is impossible. Nonlinear loads are switched on for only part of the cycle, as in a thyristor-controlled circuit, or pulsed, as in a cont ...
3. manual mode
... On/Off Command Output Terminals: Terminals marked with C1 ----- Cnn and COM. COM: This is the Common terminal. The DC Voltage applied to this terminal would appear at the output terminals Cnn if output Current-Sourcing Transistor is turned ON. Cnn: These are the Bank On / Off command terminals. When ...
... On/Off Command Output Terminals: Terminals marked with C1 ----- Cnn and COM. COM: This is the Common terminal. The DC Voltage applied to this terminal would appear at the output terminals Cnn if output Current-Sourcing Transistor is turned ON. Cnn: These are the Bank On / Off command terminals. When ...
AAT3663 数据资料DataSheet下载
... Charge current programming pin. Connect a resistor between this pin and GND to program the constant fast charge current. IC ground connection. Connect this pin to power ground. Battery temperature sense input. Connect the Li-Ion battery pack NTC resistor terminal to this pin. Battery voltage sense p ...
... Charge current programming pin. Connect a resistor between this pin and GND to program the constant fast charge current. IC ground connection. Connect this pin to power ground. Battery temperature sense input. Connect the Li-Ion battery pack NTC resistor terminal to this pin. Battery voltage sense p ...
a CMOS 80 MHz Monolithic 256 24(18) Color Palette RAM
... Composite sync control input (TTL compatible). A logical zero on this input switches off a 40 IRE current source on the analog outputs (see Figures 3 and 4). SYNC does not override any other control or data input, as shown in Tables IV and V; therefore, it should be asserted only during the blanking ...
... Composite sync control input (TTL compatible). A logical zero on this input switches off a 40 IRE current source on the analog outputs (see Figures 3 and 4). SYNC does not override any other control or data input, as shown in Tables IV and V; therefore, it should be asserted only during the blanking ...
555 Timer - Electro Tech Online
... as it is connected pin 7. Pin 7 is grounded while the output (pin 3) is low. When the circuit is activated, the cap starts charging. When it the voltage reaches 2/3 of Vcc, the threshold (pin 6) stops the timer. The output then goes low, and the discharge pin is grounded, discharging the capacitor ...
... as it is connected pin 7. Pin 7 is grounded while the output (pin 3) is low. When the circuit is activated, the cap starts charging. When it the voltage reaches 2/3 of Vcc, the threshold (pin 6) stops the timer. The output then goes low, and the discharge pin is grounded, discharging the capacitor ...
MAX17502 60V, 1A, Ultra-Small, High-Efficiency, Synchronous Step-Down DC-DC Converter General Description
... cycle using a PWM comparator, a high-side current-sense amplifier, and a slope-compensation generator. At each rising edge of the clock, the high-side p-channel MOSFET turns on and remains on until either the appropriate or maximum duty cycle is reached, or the peak current limit is detected. During ...
... cycle using a PWM comparator, a high-side current-sense amplifier, and a slope-compensation generator. At each rising edge of the clock, the high-side p-channel MOSFET turns on and remains on until either the appropriate or maximum duty cycle is reached, or the peak current limit is detected. During ...
Dual-Axis Solar Tracker - Worcester Polytechnic Institute
... Currently in order to run a military base large generators are required, which are reported to be not nearly as efficient as solar panels could be, and consume large amounts of fuel in order to run. The needs of future military installments are to have renewable energy sources that require less main ...
... Currently in order to run a military base large generators are required, which are reported to be not nearly as efficient as solar panels could be, and consume large amounts of fuel in order to run. The needs of future military installments are to have renewable energy sources that require less main ...
TLC27L4, TLC27L4A, TLC27L4B, TLC27L4Y, TLC27L9 LinCMOS PRECISION QUAD OPERATIONAL AMPLIFIERS
... TLC27L4 and TLC27L9. The devices also exhibit low voltage single-supply operation and ultra-low power consumption, making them ideally suited for remote and inaccessible battery-powered applications. The common-mode input voltage range includes the negative rail. A wide range of packaging options is ...
... TLC27L4 and TLC27L9. The devices also exhibit low voltage single-supply operation and ultra-low power consumption, making them ideally suited for remote and inaccessible battery-powered applications. The common-mode input voltage range includes the negative rail. A wide range of packaging options is ...
LM1971 Digitally Controlled 62 dB Audio Attenuator with
... allowable power dissipation is PD = (TJMAX – TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM1971N and LM1971M, TJMAX = +150˚C, and the typical junction-to-ambient thermal resistance, θJA, when board mounted is 102˚ C/W and 167˚ C/W, respectively. Note 4: H ...
... allowable power dissipation is PD = (TJMAX – TA)/θJA or the number given in the Absolute Maximum Ratings, whichever is lower. For the LM1971N and LM1971M, TJMAX = +150˚C, and the typical junction-to-ambient thermal resistance, θJA, when board mounted is 102˚ C/W and 167˚ C/W, respectively. Note 4: H ...
480 Vac Supply Voltage
... A coiled resistor alloy heating element provides the powerlimiting feature of HPT. This PTC (Positive Temperature Coefficient) characteristic decreases the cable’s power output as the heat-traced product temperature increases and allows the cable to be overlapped during installation. The composite c ...
... A coiled resistor alloy heating element provides the powerlimiting feature of HPT. This PTC (Positive Temperature Coefficient) characteristic decreases the cable’s power output as the heat-traced product temperature increases and allows the cable to be overlapped during installation. The composite c ...
2-555 Timer-Rev2p1
... as it is connected pin 7. Pin 7 is grounded while the output (pin 3) is low. When the circuit is activated, the cap starts charging. When it the voltage reaches 2/3 of Vcc, the threshold (pin 6) stops the timer. The output then goes low, and the discharge pin is grounded, discharging the capacitor ...
... as it is connected pin 7. Pin 7 is grounded while the output (pin 3) is low. When the circuit is activated, the cap starts charging. When it the voltage reaches 2/3 of Vcc, the threshold (pin 6) stops the timer. The output then goes low, and the discharge pin is grounded, discharging the capacitor ...
BD6385EFV-LB
... BD6385EFV are the high-grade type that provides the highest function and highest reliance in the ROHM stepping motor driver. This has the perfect various protection circuits and reduces IC’s generation of heat by adopting low-ON resistance DMOS and high heat-radiation power package. As for its basic ...
... BD6385EFV are the high-grade type that provides the highest function and highest reliance in the ROHM stepping motor driver. This has the perfect various protection circuits and reduces IC’s generation of heat by adopting low-ON resistance DMOS and high heat-radiation power package. As for its basic ...