monostable การใช้

• You can google " Monostable multivibrator " or check out this site.
• Such devices are called monostable LCDs.
• In practice, an impulse train generated by a monostable circuit will have many usable harmonics.
• However, such a response would be consistent with both a monostable, ultransensitive transition and a bistable transition.
• The falling ( negative ) edge of the pulse is used to start a monostable multivibrator in the slave device.
• The simplest SSI slave interface uses a retriggerable monostable multivibrator ( monoflop ) to freeze the current value of the sensor.
• If further trigger pulses do not affect the period, the circuit is a " non-retriggerable " monostable.
• If repeated application of the input pulse maintains the circuit in the unstable state, it is called a " retriggerable " monostable.
• When triggered by an input pulse, a monostable multivibrator will switch to its unstable position for a period of time, and then return to its stable state.
• In the monostable multivibrator, one resistive-capacitive network ( C 2-R 3 in Figure 1 ) is replaced by a resistive network ( just a resistor ).
• For this reason any timer should be a retriggerable monostable, i . e . the off delay lasts from the time of the " last " button press.
• Compared to monostable multivibrators, the timing has no dependency on component values, however, it requires external clock and the timing accuracy is limited by a granularity of this clock.
• A hysteretic bistable system can act as a robust reversible switch because it is harder for the system to transition between  on and  off states ( compared to the equivalent monostable ultransensitive response ).
• A similar circuit was used in the IBM PC . In the joystick interface circuit of the IBM PC, the capacitor of the RC network ( see Monostable Mode above ) was generally a 10 nF capacitor.
• In this arrangement a monostable flip flop triggered by the comparator at the threshold crossing will closely follow the threshold crossings and thus eliminate one source of error, both in the ADC and the sigma delta modulator.
• This was a monostable multivibrator, known as a One-Shot or Kipp Relay, that triggered the coarse time base, offsetting its starting point so it did not trigger immediately after the transmission, but a selected time after that.
• Essentially I want it to start a " stopwatch " the instant the current rises above 5礎, and reset that stopwatch the instant the current drops below 5礎 . If the timer reaches 50ms before it is reset, a monostable LMC555 fires and holds a transistor ( logic-level MOSFET or Darlington BJT-I haven't decided yet ) high for about half a second.