![AN-1907 LM3423 Buck-Boost Configuration Evaluation Board (Rev. A)](http://s1.studyres.com/store/data/000087147_1-6c48d76b066b47b410de4ce2747d4775-300x300.png)
AN-1907 LM3423 Buck-Boost Configuration Evaluation Board (Rev. A)
... signal. By reducing the average LED current, light from the LEDs is reduced. This dimming method allows the converter to operate the LEDs at a specific peak output current level (iL), which is usually a set point determined by the LED manufacturer. This allows the LED to illuminate with a consistent ...
... signal. By reducing the average LED current, light from the LEDs is reduced. This dimming method allows the converter to operate the LEDs at a specific peak output current level (iL), which is usually a set point determined by the LED manufacturer. This allows the LED to illuminate with a consistent ...
4 A dual low-side MOSFET driver
... Output series resistance An output resistance is generally introduced to allow high-frequency operation without exceeding the maximum power dissipation of the driver package. The value of the output resistance can be obtained as described in Section 5.2. For applications with supply voltages (VCC) g ...
... Output series resistance An output resistance is generally introduced to allow high-frequency operation without exceeding the maximum power dissipation of the driver package. The value of the output resistance can be obtained as described in Section 5.2. For applications with supply voltages (VCC) g ...
Document
... This is a new component you will be investigating today. The schematic symbol for a resistor is ...
... This is a new component you will be investigating today. The schematic symbol for a resistor is ...
High-efficiency, IEEE 802.3at compliant, integrated PoE
... Drive this pin low to disable the LED driver during normal operations. Entering sleep mode the host of the PoE-PD may drive this pin through an optocoupler to set the MPS current profile. The signal value is sampled on the ENSL pin during transition to sleep mode. If low the MPS current is pulsed, i ...
... Drive this pin low to disable the LED driver during normal operations. Entering sleep mode the host of the PoE-PD may drive this pin through an optocoupler to set the MPS current profile. The signal value is sampled on the ENSL pin during transition to sleep mode. If low the MPS current is pulsed, i ...
“How to Implement ICP Using ELAN EM78PXXX General Purpose OTP MCUs”
... The circuit below is configured such that a high voltage (13V) applied to VPP during OTP programming will cause the CD4066, via a transistor inverter (2N3904), to disconnect the 6 other pins which are used for OTP programming. After programming, to insure that the application circuit functions norma ...
... The circuit below is configured such that a high voltage (13V) applied to VPP during OTP programming will cause the CD4066, via a transistor inverter (2N3904), to disconnect the 6 other pins which are used for OTP programming. After programming, to insure that the application circuit functions norma ...
AN2640
... it is possible to add intelligence into the circuit. Instead of having a dedicated circuit for each lamp with a single ballast it is possible to drive many different lamp groups. This application note describes an electronic ballast that is able to recognize lamps within the T5 fluorescent family su ...
... it is possible to add intelligence into the circuit. Instead of having a dedicated circuit for each lamp with a single ballast it is possible to drive many different lamp groups. This application note describes an electronic ballast that is able to recognize lamps within the T5 fluorescent family su ...
Lab #10: ADC
... 1. Marks will be instantly deducted from your lab if you fail to set the function generator or supply voltages properly. 2. Use the Experimenter’s board efficiently…the ADC circuit will be combined with the DAC lab to create an ADC-DAC lab. 3. Wiring neatness is important for this lab. All component ...
... 1. Marks will be instantly deducted from your lab if you fail to set the function generator or supply voltages properly. 2. Use the Experimenter’s board efficiently…the ADC circuit will be combined with the DAC lab to create an ADC-DAC lab. 3. Wiring neatness is important for this lab. All component ...
VNI8200XP
... Additional embedded functions are: Loss of GND protection that automatically turns OFF the IC in case of ground pin disconnection, under voltage shutdown with hysteresis, Power Good diagnostic for valid supply voltage range recognition, output enable function for immediate power outputs shutdown and ...
... Additional embedded functions are: Loss of GND protection that automatically turns OFF the IC in case of ground pin disconnection, under voltage shutdown with hysteresis, Power Good diagnostic for valid supply voltage range recognition, output enable function for immediate power outputs shutdown and ...
Exercise 5
... attractive feature of Matlab that will be used here are the many built-in graphing capabilities. Suppose you have measured a whole set of (v,i) pairs, e.g., the ones shown in the following table. Volts Milliamperes ...
... attractive feature of Matlab that will be used here are the many built-in graphing capabilities. Suppose you have measured a whole set of (v,i) pairs, e.g., the ones shown in the following table. Volts Milliamperes ...
Exercise 6: LEDs and MatLab
... attractive feature of Matlab that will be used here are the many built-in graphing capabilities. Suppose you have measured a whole set of (v,i) pairs, e.g., the ones shown in the following table. Volts Milliamperes ...
... attractive feature of Matlab that will be used here are the many built-in graphing capabilities. Suppose you have measured a whole set of (v,i) pairs, e.g., the ones shown in the following table. Volts Milliamperes ...
Iguana Labs uC beginners kit manual 7th Oct 2014
... good range for LEDs. They have a positive leg and a negative leg just like regular diodes. To find the positive side of an LED, look for a line in the metal inside the LED. It may be difficult to see the line. This line is closest to the positive side of the LED. Another way of finding the negative ...
... good range for LEDs. They have a positive leg and a negative leg just like regular diodes. To find the positive side of an LED, look for a line in the metal inside the LED. It may be difficult to see the line. This line is closest to the positive side of the LED. Another way of finding the negative ...
Lab #10 - facstaff.bucknell.edu
... d. Keep in mind that you might want to combine resistors in series and/or parallel in order to “tune” each timer circuit to the proper frequency. Because of the loose tolerances, especially of the capacitors, the component values you initially try might cause the tone to be off by as much as a half ...
... d. Keep in mind that you might want to combine resistors in series and/or parallel in order to “tune” each timer circuit to the proper frequency. Because of the loose tolerances, especially of the capacitors, the component values you initially try might cause the tone to be off by as much as a half ...
NCP5080 Xenon Photoflash Capacitor Charge with Photo Sense
... care must be observed since such a resistor is in parallel with the internal network as depicted in Figure 4 and the input node might be too sensitive to the ambient noise. It is recommended to avoid sense resistor value above 100 kW, although that 1 MW is possible, the operation being rapidly downg ...
... care must be observed since such a resistor is in parallel with the internal network as depicted in Figure 4 and the input node might be too sensitive to the ambient noise. It is recommended to avoid sense resistor value above 100 kW, although that 1 MW is possible, the operation being rapidly downg ...
Digital generation of sine waves
... through the blue led, D1. If the voltage V1 is high enough and the resistance, R2 is low enough, there will be enough current to make the LED light up. The values shown for the LED (20mA and 3.3 V are typical operating conditions for many blue led’s, not min or max values). What to make R2? ...
... through the blue led, D1. If the voltage V1 is high enough and the resistance, R2 is low enough, there will be enough current to make the LED light up. The values shown for the LED (20mA and 3.3 V are typical operating conditions for many blue led’s, not min or max values). What to make R2? ...
Light-Emitting Diode Degradation and Low
... As stated above, 1/f α -type noise is due to charge carrier generation-recombination in defect centers. Therefore, 1/f α -type noise intensity increase indicates that number of defects during aging increases in the device. The shot noise is caused by random photons emission and its level depends onl ...
... As stated above, 1/f α -type noise is due to charge carrier generation-recombination in defect centers. Therefore, 1/f α -type noise intensity increase indicates that number of defects during aging increases in the device. The shot noise is caused by random photons emission and its level depends onl ...
GND - IBIS Open Forum
... Each individual connection path (user pin to node(s)) description begins with the [Path Description] keyword and a path name, followed by the subparameters used to describe the path topology and the electrical characteristics of each section of the path. The path name must not exceed 40 characters, ...
... Each individual connection path (user pin to node(s)) description begins with the [Path Description] keyword and a path name, followed by the subparameters used to describe the path topology and the electrical characteristics of each section of the path. The path name must not exceed 40 characters, ...
doorbell extender
... been the main priority in this project, it must not be overlooked that both the Transmitter and Receiver need links to the mains supply and all the usual precautions MUST be taken in making up and testing these circuits. The Transmitter circuit is built on a small printed circuit board (p.c.b.). The ...
... been the main priority in this project, it must not be overlooked that both the Transmitter and Receiver need links to the mains supply and all the usual precautions MUST be taken in making up and testing these circuits. The Transmitter circuit is built on a small printed circuit board (p.c.b.). The ...
www.BDTIC.com/maxim 73S8009CN Demo Board User Manual
... © 2010 Teridian Semiconductor Corporation. All rights reserved. Teridian Semiconductor Corporation is a registered trademark of Teridian Semiconductor Corporation. Simplifying System Integration is a trademark of Teridian Semiconductor Corporation. All other trademarks are the property of their res ...
... © 2010 Teridian Semiconductor Corporation. All rights reserved. Teridian Semiconductor Corporation is a registered trademark of Teridian Semiconductor Corporation. Simplifying System Integration is a trademark of Teridian Semiconductor Corporation. All other trademarks are the property of their res ...
dortronics 4505 user notes
... For the timer to trigger on power up, move the lower jumper to the left two pins. This is a useful function for retrofitting a timed relock delay to existing door locks wired for power only with no control wiring available. When the power circuit is briefly interrupted (usually by a momentary pushbu ...
... For the timer to trigger on power up, move the lower jumper to the left two pins. This is a useful function for retrofitting a timed relock delay to existing door locks wired for power only with no control wiring available. When the power circuit is briefly interrupted (usually by a momentary pushbu ...
Epiphone Valve Jr. Mods
... Along with R2, creates a voltage divider that determines how much input signal gets into the amp. Stock only allows half of the signal to enter See R1. Larger values roll off more high end. Could replace with a 500K pot for Master Volume Control Along with R7, creates voltage divider for input to se ...
... Along with R2, creates a voltage divider that determines how much input signal gets into the amp. Stock only allows half of the signal to enter See R1. Larger values roll off more high end. Could replace with a 500K pot for Master Volume Control Along with R7, creates voltage divider for input to se ...
ECE1250F14_Lab6_Gates CMF
... Note how VCC and Gnd for the NAND gate chip are specified behind the scenes in Multisim. When adding logic gate chips in Multisim, be careful to avoid redefining VCC, which might confuse Multisim. b) Power the Chip: Place the 74HC00 NAND chip on your breadboard as shown in Fig. 2. Note that the notc ...
... Note how VCC and Gnd for the NAND gate chip are specified behind the scenes in Multisim. When adding logic gate chips in Multisim, be careful to avoid redefining VCC, which might confuse Multisim. b) Power the Chip: Place the 74HC00 NAND chip on your breadboard as shown in Fig. 2. Note that the notc ...
Basic Digital Circuits
... 1. Use a logic probe to check that power and ground is properly connected to each chip. 2. Next, beginning at the output pin, move backwards though the circuit checking the logic at each point with the logic probe. For example, consider Figure 3. Assume that, for a particular combination of inputs, ...
... 1. Use a logic probe to check that power and ground is properly connected to each chip. 2. Next, beginning at the output pin, move backwards though the circuit checking the logic at each point with the logic probe. For example, consider Figure 3. Assume that, for a particular combination of inputs, ...
BQ24312 数据资料 dataSheet 下载
... internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. If the battery voltage rises to an unsafe level, the IC disconnects power from the charging circuit u ...
... internal switch. In the case of an overcurrent condition, it limits the system current at the threshold value, and if the overcurrent persists, switches the pass element OFF after a blanking period. If the battery voltage rises to an unsafe level, the IC disconnects power from the charging circuit u ...
TL4242-Q1 数据资料 dataSheet 下载
... The TL4242 is an integrated adjustable constant-current source, driving loads up to 500 mA. The output current level can be adjusted via an external resistor. The device is designed to supply high-power LEDs (for example, OSRAM Dragon LA W57B) under the severe conditions of automotive applications, ...
... The TL4242 is an integrated adjustable constant-current source, driving loads up to 500 mA. The output current level can be adjusted via an external resistor. The device is designed to supply high-power LEDs (for example, OSRAM Dragon LA W57B) under the severe conditions of automotive applications, ...
ISL6173 - Intersil
... The IC monitors the load current (Io) by sensing the voltagedrop across the low value current sense resistor (RSNS), which is connected in series with the MOSFET as shown in the diagram on page 2, through Sense (SNS) and voltage set (VS) pins. The latter is through a resistor, RSET, as shown. Two le ...
... The IC monitors the load current (Io) by sensing the voltagedrop across the low value current sense resistor (RSNS), which is connected in series with the MOSFET as shown in the diagram on page 2, through Sense (SNS) and voltage set (VS) pins. The latter is through a resistor, RSET, as shown. Two le ...
Charlieplexing
![](https://commons.wikimedia.org/wiki/Special:FilePath/Sandorclock.jpg?width=300)
Charlieplexing is a technique for driving a multiplexed display in which relatively few I/O pins on a microcontroller are used to drive an array of LEDs. The method uses the tri-state logic capabilities of microcontrollers in order to gain efficiency over traditional multiplexing. Although it is more efficient in its use of I/O, there are issues that cause it to be more complicated to design and render it impractical for larger displays. These issues include duty cycle, current requirements and the forward voltages of the LEDs.