.. Additional input protection against ESD and hot-plugging, four 1N4148 diodes D1, D2, D3, D4 connected from the input to supply lines. R7 and R8 provide a path for the input bias current of the INA163. Gain is set with a variable ...
.. applications require a hot-swap controller, a circuit-breaker function, or both for dual-polarity, dc-input power-supply rails. In some hot-swap cases, the requirement is based only on inrush-current considerations. Control of the ...
.. latching motor controller that uses current sensing rather than switches to stop the motor. The design is optimized for a supply voltage of 3 to 9 V, making it well-suited to battery-powered applications. To understand how the circuit ...
.. inverter. Although this can result in excellent ripple suppression, it has a disadvantage the need for an inverter power supply, which does not degrade the accuracy of the regulator’s 1% or better reference voltage. Stephen has ...
.. you use. The first implementation in Figure 1 shows how to realize ratiometric sequencing, which means that both power-supply output rails simultaneously start and simultaneously reach their final regulated output voltage. This ...
.. is good for usual purposes, or DIY circuits which draw a current above 100 milliamps; but not for tiny circuits with a supply current lower than 100 mA. This simple 555 based circuit, is an astable multivibrator with a period of ~5 ...
.. power diode) are not shown. Note that if the microamps and millivolts of residual zero offset that persist on the unloaded supply output at PWM = zero duty factor aren’t objectionable, then the Q2 R5 current sink is irrelevant and ...
.. of Q 3 becomes several hundred millivolts more positive than the base of Q 4 , current from Q 2 shunts to the 5 V power supply. No current flows through, so the LED is off. When the base of Q 3 is less positive than that of Q 4 , ...