Abstract
A reverse hysteresis circuit adopted for several on-off control systems in order to obtain better control characteristics yields the following conclusions:
1) A reverse hysteresis acts as if it were a PD or phase advance circuit when it is applied to an on-off control system.
2) A simple relay logical circuit can be used for this purpose.
3) An equivalent phase advance characteristics having a large time constant can be obtained and yet noises are not amplified.
4) Suitable for a simple position control as the phase advance circuit can be made even though controlled variable is not transduced into electrical signal or pneumatic pressure.
