Inductive load bidirectional current control circuit

According to the inductive load bidirectional current control circuit, different error signals EO and positive and negative triangular wave signals are input through the input ends of a comparator U1A, a comparator U2A, a comparator U3A and a comparator U4B, so that the comparator U1A, the comparator U2A, the comparator U3A and the comparator U4B output different PWM signals; the different PWM signals can control the turn-on and turn-off time of each MOS (Metal Oxide Semiconductor) tube of a corresponding bridge arm in the bridge topology circuit, and finally an expected bidirectional Ampere force is generated in the inductive load; the control circuit is simple in structure, safe and reliable in work, low in cost, easy to implement and suitable for long-term large-scale use. 一种感性负载双向电流控制电路，利用比较器U1A、比较器U2A、比较器U3A和比较器U4B的输入端输入不同的误差信号EO和正负三角波信号，从而让比较器U1A、比较器U2A、比较器U3A和比较器U4B输出不同的PWM信号，而这些不同的PWM信号则会控制桥式拓扑电路中对应桥臂的各个MOS管的导通和关闭时间，最终在感性负载中产生预期的双向安培力；该控制电路结构简单、工作安全可靠、成本低廉、易于实现，适合长期大规模地投入使用。