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The single machine reset circuit

2015-01-01 19:25  
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The single machine reset circuit
The single machine reset circuit
The single machine reset circuit
The single machine reset circuit
The single machine reset circuit
The single machine reset circuit
Figure 2 by increasing the RC reset circuit of the discharging circuit and using the comparator circuit, it can not only solve the problem of the system instability caused by the power supply burr, but also the power supply will fall down or reset reliably. Figure 4 is an practical example, when VCC x (R1/(R1+R2) ) =0.7V, Q1 is blocked and the system is reset. The amplifying function of Q1 can also improve the loading character of the circuit, but its obvious defect is that hop sill voltage Vt is affected by VCC, but the use of diode can avoid this problem. Figure 3 the input-output feature of RC reset circuit