The paper presents a novel PID controllers by processing directly one-bit over-sampled Σ-Δ coded data streams.A second-order digital Σ-Δ modulation was intruduced and used as remodulator embedded the circuit for its simple structure.The basic proposed bit streams modules

such as adder

integrator and derivative in the paper

are simple and easy to constitute the PID controllers.The loop-closed system with two PID controllers are presented and compared.The simulations are carrid out and shown that the circuit complexity can be reduced efficiently and the design is feasible.