Explain different types of Hydraulic circuits?

There are two types of hydraulic systems. These are mentioned below

• Open-loop or open circuit: When the operating mechanism is idle, there will be fluid flow but no pressure in the open-loop system. In this, the fluid passage from the actuator to the reservoir and then to the pump inlet. It uses a directional control valve. The advantage of using this hydraulic system is it generates less heat compared to a closed-loop hydraulic system.
• Closed-loop or closed circuit: In this system, when the pump operates there will be pressure for fluids. Unlike Open-loop, the fluid does not enter into the reservoir. The fluid flow only between the pump and the actuator. This system uses an additional pump called a feed pump or charge pump. The main advantage of using a closed-loop system is a precise response of actuation.