Simple math implemented in a (very) simple circuit. What’s not to like? A very cool (also warm!) property of the base-emitter junction of (most) small signal BJTs is the ΔV BE temperature-sensing effect. ΔV BE temperature ...
.. power supplies, it is not safe to have such high currents flow in a circuit which would normally withstand currents 10÷20 times the work that. You can then see that the batteries in parallel issue are not trivial. The first thing ...
.. components in the circuit under test. This circuit passes only 100 µA through the probes, which is a factor of 10 less than most multimeters. No on/off switch, so there's no danger of leaving it switched on and running down the ...
.. protect the MOSFETs from overvoltage and overcurrent, two Zener-resistor pairs are used: R3/DZ1 and R4/DZ2. R3 and R4 are 10 kohms; DZ1 and DZ2 are 12 V 1 W. LED LD1 indicates the presence of power and is powered through the series resistor ...
.. 2. But that passive network, though discarded for now, will come in handy later. The necessary biasing is provided by R8 10. Because R4 is now bridged by ~23k, A1’s gain is increased slightly. R5’s new value gives the same error ...
.. Figure 9. Top view of the Blu-ray Microscope. However, it can be flipped open for an easy insertion of the specimen (Figure 10). Figure 10. Laser Microscope with sample. The distance between the OPU's outlet lenses and the sample can ...
.. from builders’ skips/dumpsters! Figure 4 shows the module from Figure 2 mounted on/in a block of it, with at least 10 mm of foam around any part of the circuit module. Figure 4. The module from Figure 2 mounted on a block of foam. The ...
.. the extremely wide range of the analog quantity (frequency) involved, e.g., 100,000:1 for Christopher Paul’s 5-decade 10 Hz to 1 MHz sawtooth generator (Ref. 1). 5 decimal decades = 10 ppm and is equivalent to a linear binary resolution ...