Free Simple Circuit Diagram
The transistor is biased in class A. That’s mean the collector current flows all the time. This current can increase or decrease, caused by the input signal which increases and decreases the forward bias. This increasing or decreasing depends on the input signal, but never stop, even in the lowest level of input (the lower peak of the waveform). These […]
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The circuit on the following figure is not for power supply management, but serves to prevent lock-up in processor based systems. If the system misses an instruction due to transient hardware or software events, this could be occur. A predictable cessation of pulse events somewhere in the system is caused by such a processor hang-up. This circuit issues a reset […]
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After supply turn-on, another power related requirement involves generating a system reset pulse. The 5V rail comes up when supply power is applied to figure below. The LT1004 clamps at 1.2V and C1A’s positive input (Trace B) ramps at a time constant determined by the 0.5% resistors and the 0.1 uF capacitor. The output goes high when C1A’s positive input […]
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Multivibrators is two state devices which is used extensively in digital electronics. The bistable multivibrators or called filp-flop are the basic memory devices used in sequential logic. Beside bistable multivibrator, there are also astable multivibrator which serves as an oscillator and the monostable multivibrator (on shot multivibrator) which can serve as a pulse source. The NAND gate inverters configuration shown […]
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