.. amplifier, whose gain is approximately 26 dB, easily drives a set of 8 ohm headphones. If you need more gain, you can add a 10 µF capacitor between pins 4 and 12 of the LM389. The prototype detector uses some polyvinyl-chloride sprinkler ...
.. 1’s silly-simple voltage-to-time ADC is an exercise in dynamic range. Assuming that it is used with a 10-MHz counter/timer, its resolution is roughly 10 µV per count for inputs around 0 V and 100 mV per count at 1 ...
.. a function of the length of the start-up pulse from the µC. This pulse should be long enough usually, approximately 10 msec to allow the normal load (with its own input capacitors and power converters) to start. The LM2675 with a catch ...
.. If you activate neither Control 1 nor Control 2, Q 3 and Q 5 conduct, receiving base current through R 7 and D 1 and R 10 and D 2 , respectively. This action short-circuits (brakes) the motor. In this case, Q 4 and Q 6 are turned off. ...
.. reference power. IC 6 and Q 1 form a voltage follower that drives the load. The following formula sets output power: V PC = 10 × P × R SENSE , where P is the desired output power in watts, R SENSE is the sensing resistor in ohms, ...
.. energy collector circuit helps to convert surrounding radio frequency waves to electric power and can provide 40 watts to 10 watts indefinitely. The circuit concept An option to increase the output power is achievable through proper set-up of ...
.. 1. LM317 regulator melds with HC4053 CMOS switch to make a 16-W PWM power DAC. CMOS SPDT switches U1b and U1c accept a 10-kHz PWM signal to generate a 0 V to 9.75 V “ADJ” control signal for the U2 regulator via feedback ...
Figure 1 is a cheap and cheerful voltage inverter I offered awhile back in “A simple, accurate, and efficient charge pump voltage inverter for $1” ( Ref. 1 ). Figure 1. The generic and versatile xx4053 provides the basis for a cheap, ...
.. at CIN1 is 600 mV, so a resistor-divider with ratio 6.5:1 is the target value. Choosing R4 at 68 kΩ and R5 at 10 kΩ yields an actual load-current threshold of 936 mA, which is close enough for this application. If the load ...
.. in the 20 Hz-30 kHz band is 1.7 µV. That gives a theoretical SNR (signal-to-noise ratio) of 126 dB for output level 10 V PP , or 3.5 V RMS . The LM49710 has voltage-noise density of 2.5 nV/√Hz. Resistors and input noise currents ...