.. current, make sure not to exceed Q 1 's maximum power dissipation. Figure 2. Setting R 1 to values of 1 kW, 750 W, and 510 W delivers output currents of approximately 1.8, 2.5, and 3.6 mA that are insensitive to a wide range of ...
.. A homemade optocoupler (Figure 4) with a GL5506 photoresistor (peak spectral sensitivity is 540 nm) and a green SMD LED (510-555 nm) of 3014 footprint (3.0 mm × 1.4 mm) is used. Such a pair effectively performs its function at 100 ...
.. HP10811A component oscillator for the Colpitts oscillator. Connect the HP10811A's output through a 510 Ω resistor and a 10-nF coupling capacitor, directly to the emitter of Q 2 . If you need more than four ...
.. from the IC1 outputs or the current generated by Q1 is fed to the capacitor or inductor under test, respectively. The 510 Ω resistor R2 functions as the decay resistance R of Figure 1 in 'L' mode, and the series connection ...
The circuit in Figure 1 is useful when you need amplitude demodulation or an averaged absolute-value conversion. The circuit comprises two stages, the first of which, IC 1A , is a differential-output absolute-value converter. The second stage, IC ...
With just a few NAND gates, you can control sump pumps and other pumps that keep your basement from flooding and maintain water levels in tanks. The circuit in Figure 1 receives 12 V signals from L 1 , the lower water level, and L 2 , the upper ...
The MOSFET in Figure 1 is used as both a heater and a temperature sensor in a thermostatic circuit. Figure 1. Circuit diagram for using a MOSFET as a thermostatic heater. The circuit can be used as a tiny thermostat for some biological structures ...
Alan Yates A lot of people have been asking me for the circuit of the demonstration TX I used in the video, so here it is: This is *not* an efficient design and is meant as a demonstration only. The compression trimmer should be fairly high ...
Low-cost monolithic precision adjustable voltage references are available in multiple families from multiple manufacturers, but this isn’t true for adjustable precision current references. That’s unfortunate, because while most ...