1.2 Introduction to Feedback Control ---Feedback control systems are at work all around us Example 1: A water temperature control system What is a control system? In the shower Fig 1.1
1.2 Introduction to Feedback Control ----Feedback control systems are at work all around us! • Example 1: A water temperature control system Fig.1.1
Block diagram representation 6 H C Forward path alve angle NervousiHand o Mixer system valve Actuator Controller Plant Feedback path Skin s temperature "Measured"temperature sensors Sensor
Water temperature control system with a automatic method Automatic control temperature sensor motor 6 10V motor drive (amplifier) H C thermostat
Water temperature control system with a automatic method
The block diagram of the water temperature automatic control system Thermostat 01a 仑 OHAMPLIFIERH MO0MXR VALVE I Potentiometer T emperature ensor T Fig. 1.5 Block diagram of automatic temperature control system
The block diagram of the water temperature automatic control system
The block diagram of a generalized feedback control system Differencing junction Forward path 吗Fmr| CONTROLLER Control PLANT utput SIgn Measured output TRANSDUCER Feedback path Fig. 1. 3 Generalized feedback control system
The block diagram of a generalized feedback control system