His simulated circuit is a slight variation (for measurement purposes). The resistor to ground on the base stabilizes the bias and the ratio of R1 and R2 set the output voltage (0.6 volts across R2 gives about 8 volts across R1). He put in an emitter resistor just for good measure. Sam...
How can I find the register value to verify the V shunt value ? If the current is 500mA, then I need to adjust the R shunt value to 0.01 ohm to get the V shunt value is 5 mV? Hello Kevin, Thank you for using the TI forum. Yes, your math is correct for the...
and popular applications. We have included some recommendations for commonly used resistor series with high supply chain availability from the Common Parts Library and Seeed Studio’s Open Parts Library, and have linked to pre-created search on Octopart. ...
LTspice simulation can be used to create a similar injection and measurement in the control loop for an LED. Figure 2 shows an LED driver (LT3950) with an ideal sine wave of given frequency (f) injected directly into the feedback path on the negative sense line (ISN). Measurement po...
Example: Measuring the current of an LED AnLEDneeds a resistor in series to set the current flowing through it to a certain level. But how do you verify that your resistor selection gives you the current you want? Let’s connect the following circuit and measure the current flowing in it...
NI 9247 50 ARMS (100 ARMS for 10 seconds) Direct connection to module that has internal, calibrated CTs; OR connect to 1 A and 5A secondary from high current CTs Table 1: NI has a variety of C Series modules for current measurement. All modules output full waveform for processing with ...
Connect multiple LEDs in series. Subtract each of their Vf typ from the battery voltage to calculate Vres. Warning Do not exceed the maximum current of an LED by using too small of a resistor value; this will destroy the LED. References ...
To deal with this, set the start sweep from the approximate diode barrier potential (–0.7 V) to VDD (+1.8 V). Then extrapolate the data to comply with –VDD to 2 × VDD I-V data. Another way is to place a small resistor Rser in series with VSWEEP to li...
The display is designed to work at 3.3V and applying 5V will damage the display, so care must be taken while handling it. The display has backlight functionality which is commonly in white or blue in colour. 5V is given to backlight with 330 ohm current limiting resistor. ...
to install a capacitor in series. In my designs, I am not allowing to a voltage stress of more than75%. This means, if the actual circuit voltage is 10V, the minimum capacitor voltage I will select is 13.33V (10V/0.75). However, there is no such voltage. So, I will go to the ...