Final Report
... work with a different phone. The modified design must be able to light the red LED when the “offhook” is below 13V, without drawing more than 3mA of current. It is easily identifiable from the circuit schematic that when Q2 is in cutoff then Q1 is in saturation causing the red LED to light and the g ...
... work with a different phone. The modified design must be able to light the red LED when the “offhook” is below 13V, without drawing more than 3mA of current. It is easily identifiable from the circuit schematic that when Q2 is in cutoff then Q1 is in saturation causing the red LED to light and the g ...
LM1558/LM1458 Dual Operational Amplifier
... Note 1: The maximum junction temperature of the LM1558 is 150§ C, while that of the LM1458 is 100§ C. For operating at elevated temperatures, devices in the H08 package must be derated based on a thermal resistance of 150§ C/W, junction to ambient or 20§ C/W, junction to case. For the DIP the device ...
... Note 1: The maximum junction temperature of the LM1558 is 150§ C, while that of the LM1458 is 100§ C. For operating at elevated temperatures, devices in the H08 package must be derated based on a thermal resistance of 150§ C/W, junction to ambient or 20§ C/W, junction to case. For the DIP the device ...
I = 200 .. 800 A
... Caution, risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a build-in device, whose conducting parts must be inac ...
... Caution, risk of electrical shock When operating the transducer, certain parts of the module can carry hazardous voltage (eg. primary busbar, power supply). Ignoring this warning can lead to injury and/or cause serious damage. This transducer is a build-in device, whose conducting parts must be inac ...
Using an I/O port pin as an A/D converter input
... capacitor voltage decreases in amplitude, when it reaches the switching threshold of the CMOS input, the input line will change from a high to low level. By starting the internal Timer/Event Counter at the start of the discharge cycle and monitoring the input line, if the Timer/Event Counter is stop ...
... capacitor voltage decreases in amplitude, when it reaches the switching threshold of the CMOS input, the input line will change from a high to low level. By starting the internal Timer/Event Counter at the start of the discharge cycle and monitoring the input line, if the Timer/Event Counter is stop ...
Figure 8. Circuit board layout for ECC808 (board available from
... lead to unpleasant noises or howling in an amplifier installation. This is thus not the place to cut costs in a good-quality microphone preamplifier. The preamplifier should not be fitted into the same enclosure as the power supply, since otherwise electromagnetic interference and mechanical humming ...
... lead to unpleasant noises or howling in an amplifier installation. This is thus not the place to cut costs in a good-quality microphone preamplifier. The preamplifier should not be fitted into the same enclosure as the power supply, since otherwise electromagnetic interference and mechanical humming ...
EUP3020 Dual High-Efficiency 1.5MHz 1A PWM Step-Down DC-DC Converter
... Dropout Operation Each channel of the EUP3020 allows the main switch to remain on for more than one switching cycle and increases the duty cycle while the input voltage is dropping close to the output voltage. When the duty cycle reaches 100%, the main switch is held on continuously to deliver curre ...
... Dropout Operation Each channel of the EUP3020 allows the main switch to remain on for more than one switching cycle and increases the duty cycle while the input voltage is dropping close to the output voltage. When the duty cycle reaches 100%, the main switch is held on continuously to deliver curre ...
L4947 L4947R 5V-0.5A VERY LOW DROP REGULATOR WITH RESET
... Where the output transistor is a lateral PNP type there is a pole in the regulation loop at a frequencybtoo low to be compensated by a capacitor which can be integrated. An external compensation is therefore necessary so a very high value capacitor must be connected from the output to ground. The pa ...
... Where the output transistor is a lateral PNP type there is a pole in the regulation loop at a frequencybtoo low to be compensated by a capacitor which can be integrated. An external compensation is therefore necessary so a very high value capacitor must be connected from the output to ground. The pa ...
A variable step-down conversion ratio switched capacitor DC–DC
... which will lead to the possibility of leaking current. To set a small charge-transfer capacitor is an effectual approach to minimize the ac components. This approach will reduce the ripple output voltage. However, the minimum value of chargetransfer capacitor is also limited by the maximum load curre ...
... which will lead to the possibility of leaking current. To set a small charge-transfer capacitor is an effectual approach to minimize the ac components. This approach will reduce the ripple output voltage. However, the minimum value of chargetransfer capacitor is also limited by the maximum load curre ...
Auto-biasing white LED drivers reduce overall power
... LCD module, which needs to be illuminated all the time. While there are many manufacturers of standalone white LED drivers, one technique for currentcontrol boost converters automatically optimizes current efficiency, regardless of the number of LEDs it supports. All color displays need some form of ...
... LCD module, which needs to be illuminated all the time. While there are many manufacturers of standalone white LED drivers, one technique for currentcontrol boost converters automatically optimizes current efficiency, regardless of the number of LEDs it supports. All color displays need some form of ...
Document
... The switching regulators are more efficient than the linear regulators. This is because there is negligible power dissipation in switching ...
... The switching regulators are more efficient than the linear regulators. This is because there is negligible power dissipation in switching ...
Lect 7 Transducer 2
... processing. The on-chip excitation frequency oscillator can be set from 20 Hz to 20 kHz with a single external capacitor. Two absolute value circuits followed by two filters are used to detect the amplitude of the A- and B channel inputs. Analog circuits are then used to generate the ratiometric fun ...
... processing. The on-chip excitation frequency oscillator can be set from 20 Hz to 20 kHz with a single external capacitor. Two absolute value circuits followed by two filters are used to detect the amplitude of the A- and B channel inputs. Analog circuits are then used to generate the ratiometric fun ...
AN-782 APPLICATION NOTE
... externally to scale the voltage rail down to a level at which it can be monitored. Figure 1 shows a 3.3 V supply being scaled down for monitoring at the VX1 pin, which can detect a maximum voltage of 1.375 V. The programmed undervoltage and overvoltage thresholds correspond to a 5% window around th ...
... externally to scale the voltage rail down to a level at which it can be monitored. Figure 1 shows a 3.3 V supply being scaled down for monitoring at the VX1 pin, which can detect a maximum voltage of 1.375 V. The programmed undervoltage and overvoltage thresholds correspond to a 5% window around th ...
Test Procedure for the NCV8853GEVB Evaluation Board
... 1. The Power Good pin (PG) allows you to digitally monitor the output voltage. When above 90% of the expected value, the PG signal is in a high state. By default, it is pulled high to VOUT through a 10kΩ resistor. 2. Optional: To pull the PG pin high using a signal other than VOUT, please make the f ...
... 1. The Power Good pin (PG) allows you to digitally monitor the output voltage. When above 90% of the expected value, the PG signal is in a high state. By default, it is pulled high to VOUT through a 10kΩ resistor. 2. Optional: To pull the PG pin high using a signal other than VOUT, please make the f ...
Integrating ADC
An integrating ADC is a type of analog-to-digital converter that converts an unknown input voltage into a digital representation through the use of an integrator. In its most basic implementation, the unknown input voltage is applied to the input of the integrator and allowed to ramp for a fixed time period (the run-up period). Then a known reference voltage of opposite polarity is applied to the integrator and is allowed to ramp until the integrator output returns to zero (the run-down period). The input voltage is computed as a function of the reference voltage, the constant run-up time period, and the measured run-down time period. The run-down time measurement is usually made in units of the converter's clock, so longer integration times allow for higher resolutions. Likewise, the speed of the converter can be improved by sacrificing resolution.Converters of this type can achieve high resolution, but often do so at the expense of speed. For this reason, these converters are not found in audio or signal processing applications. Their use is typically limited to digital voltmeters and other instruments requiring highly accurate measurements.