Data Sheet (current)
... Supply voltage, VCC + . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V Supply voltage, VCC – . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... Supply voltage, VCC + . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 V Supply voltage, VCC – . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...
... exponentially as temperature rises. Many op amps include specifications at 85C or 125C, but for those that do not, a good approximation is that the current will double for every ten degrees of temperature increase. Another challenge is designing a circuit and layout to minimise external leakage path ...
ADP3605 数据手册DataSheet 下载
... For the adjustable device, a 1% resistor should be used to maintain output voltage tolerance. For both device types, tolerances can be improved by >1% using larger value and lower ESR capacitors for C O and C P. ...
... For the adjustable device, a 1% resistor should be used to maintain output voltage tolerance. For both device types, tolerances can be improved by >1% using larger value and lower ESR capacitors for C O and C P. ...
Current Distribution in Parallel LED Strings Application Guide
... current between the strings. As with any other solutions, this also has some dis-advantages. One of them is the reference current to the current mirror. The way it works in this case is that the reference current to the current mirror is set by one of the strings and current to the other strings are ...
... current between the strings. As with any other solutions, this also has some dis-advantages. One of them is the reference current to the current mirror. The way it works in this case is that the reference current to the current mirror is set by one of the strings and current to the other strings are ...
AD633 Low Cost Analog Multiplier
... other than 10 V. The connections shown in Figure 8 increase the gain of the system by the ratio (R1 + R2)/R1. This ratio is limited to 100 in practical applications. The summing input, S, may be used to add an additional signal to the output or it may be grounded. ...
... other than 10 V. The connections shown in Figure 8 increase the gain of the system by the ratio (R1 + R2)/R1. This ratio is limited to 100 in practical applications. The summing input, S, may be used to add an additional signal to the output or it may be grounded. ...
vxr100-2800s series
... The outputs of multiple converters can be stacked in series to provide higher voltages. When outputs of multiple modules are stacked, they naturally share the load. For example, two VXR100-2812S converters can be stacked to provide a 24 V DC output at 200 W. ...
... The outputs of multiple converters can be stacked in series to provide higher voltages. When outputs of multiple modules are stacked, they naturally share the load. For example, two VXR100-2812S converters can be stacked to provide a 24 V DC output at 200 W. ...
Buck Current/Voltage Fed Push-Pull PWM
... are ideally suited for multiple output and/or high voltage output applications. In both current fed and voltage fed modes, the push-pull switches are driven at 50% nominal duty cycles and at one half the switching frequency of the buck stage. In the current fed mode, the two switches are driven with ...
... are ideally suited for multiple output and/or high voltage output applications. In both current fed and voltage fed modes, the push-pull switches are driven at 50% nominal duty cycles and at one half the switching frequency of the buck stage. In the current fed mode, the two switches are driven with ...
Data Sheets
... The voltage at C(X) is initialized to 0.7V (VBE) at power up. The time for C(X) to rise to 3.4V is the filament preheat time. During that time, the oscillator charging current (ICHG) is 2.5/R(SET). This will produce a high frequency for filament preheat, but will not produce sufficient voltage to ig ...
... The voltage at C(X) is initialized to 0.7V (VBE) at power up. The time for C(X) to rise to 3.4V is the filament preheat time. During that time, the oscillator charging current (ICHG) is 2.5/R(SET). This will produce a high frequency for filament preheat, but will not produce sufficient voltage to ig ...
Digital Current Mode Control for Buck
... designed frequency domain by using the Bode diagrams. Small signal model based on state space averaging method were used as it is proposed in [6]. B. Experimental set-up Based on the above described principle of operation the experimental set-up with buck-converter circuit and appropriate FPGA unit ...
... designed frequency domain by using the Bode diagrams. Small signal model based on state space averaging method were used as it is proposed in [6]. B. Experimental set-up Based on the above described principle of operation the experimental set-up with buck-converter circuit and appropriate FPGA unit ...
Using Bipolar Transistors As Switches By Mike Martell N1HFX
... NPN transistor, R1 must be shorted to the positive end of the supply to turn the switch on. While our transistor switch can easily replace many mechanical relays, it does have a few drawbacks. The maximum design current must not be exceeded or the output voltage will be reduced. A short circuit of t ...
... NPN transistor, R1 must be shorted to the positive end of the supply to turn the switch on. While our transistor switch can easily replace many mechanical relays, it does have a few drawbacks. The maximum design current must not be exceeded or the output voltage will be reduced. A short circuit of t ...
MAX9937 Automotive Current-Sense Amplifier with Reverse-Battery Protection General Description
... amplifier features a 4V to 28V input common-mode voltage range that is independent of supply voltage (VCC = 2.7V to 5.5V). The MAX9937 monitors the current through a current-sense resistor by converting the sense voltage to a current output (OUT). Gain is set by the ratio of an output resistor (ROUT ...
... amplifier features a 4V to 28V input common-mode voltage range that is independent of supply voltage (VCC = 2.7V to 5.5V). The MAX9937 monitors the current through a current-sense resistor by converting the sense voltage to a current output (OUT). Gain is set by the ratio of an output resistor (ROUT ...
Design Solutions 10 - Active Voltage Positioning Reduces Output Capacitors
... is 0.8V and VOUT is set for 1.6V, so ∆VOUT = 2 • ∆VFB = 116mV. The peak-to-peak ripple voltage will add to this. The resulting transient response is shown in Figure 1b. The transient performance has been improved, while using fewer output capacitors. The optimal amount of AVP offset is equal to ∆I • ...
... is 0.8V and VOUT is set for 1.6V, so ∆VOUT = 2 • ∆VFB = 116mV. The peak-to-peak ripple voltage will add to this. The resulting transient response is shown in Figure 1b. The transient performance has been improved, while using fewer output capacitors. The optimal amount of AVP offset is equal to ∆I • ...
Lecture 17: BJT Biasing. Current Mirror.
... There are better and more sophisticated approaches than this, of course. This is just a simple example. In this current mirror, Q1 is called a diode-connected BJT because the collector and base terminals are connected together. For proper operation of this circuit, it is very important that the BJTs ...
... There are better and more sophisticated approaches than this, of course. This is just a simple example. In this current mirror, Q1 is called a diode-connected BJT because the collector and base terminals are connected together. For proper operation of this circuit, it is very important that the BJTs ...
VN751PT
... where -IGND is the DC reverse ground pin current and can be found in the absolute maximum rating section of the device datasheet. The power dissipation associated to RGND during reverse polarity condition is: PD = (-VCC)2/RGND This resistor can be shared by several different ICs. In such case IS val ...
... where -IGND is the DC reverse ground pin current and can be found in the absolute maximum rating section of the device datasheet. The power dissipation associated to RGND during reverse polarity condition is: PD = (-VCC)2/RGND This resistor can be shared by several different ICs. In such case IS val ...
BUCK CONVERTER
... the polarity is such that D2 is forward biased and D1 reverse biased. D2 conducts and charges the output capacitor C2 via L1. L1 and C2 form an LC filter network. When Q1 turns off, the magnetic field in T1 collapses, and after a period of dead time (dependent on the duty cycle of the PWM drive sign ...
... the polarity is such that D2 is forward biased and D1 reverse biased. D2 conducts and charges the output capacitor C2 via L1. L1 and C2 form an LC filter network. When Q1 turns off, the magnetic field in T1 collapses, and after a period of dead time (dependent on the duty cycle of the PWM drive sign ...
Introduction_to_Voltage_Pulsers__1_
... A current source provides a constant current as long as the load has sufficiently low impedance. But as the load resistance is increased, the voltage required to drive that current increases until a point is reached at which there is not sufficient voltage available to maintain the required current. ...
... A current source provides a constant current as long as the load has sufficiently low impedance. But as the load resistance is increased, the voltage required to drive that current increases until a point is reached at which there is not sufficient voltage available to maintain the required current. ...
CURS100 100 Ohm Current Shunt Terminal Input Module
... As shown in FIGURE 2-1, the 100 Ω sense resistor in the CURS100 is not connected to the adjacent ground pin that connects into the datalogger signal ground ( or AG). Hence, an additional connection must be made in order to complete the loop, which is commonly done by connecting the CURS100 L termina ...
... As shown in FIGURE 2-1, the 100 Ω sense resistor in the CURS100 is not connected to the adjacent ground pin that connects into the datalogger signal ground ( or AG). Hence, an additional connection must be made in order to complete the loop, which is commonly done by connecting the CURS100 L termina ...
Wilson current mirror
A Wilson current mirror is a three-terminal circuit (Fig. 1) that accepts an input current at the input terminal and provides a ""mirrored"" current source or sink output at the output terminal. The mirrored current is a precise copy of the input current. It may be used as a Wilson current source by applying a constant bias current to the input branch as in Fig. 2. The circuit is named after George R. Wilson, an integrated circuit design engineer who worked for Tektronix. Wilson devised this configuration in 1967 when he and Barrie Gilbert challenged each other to find an improved current mirror overnight that would use only three transistors. Wilson won the challenge.