Half-step motor driver

A system for heating and/or ventilation and/or air-conditioning, the system comprising:

• an appliance;
• a control assembly in operative communication with the appliance, the control assembly including a driver circuit and a controller;
• a first motor in operative communication with the control assembly;
• and
• a second motor in operative communication with the control assembly;
• wherein the first motor acts on a coolant and/or heating medium flowing through the system and has a first winding having a first terminal and a second terminal;
• wherein the second motor acts on the coolant and/or heating medium flowing through the system and has a second winding having a first terminal and a second terminal;
• wherein the first winding of the first motor is different from the second winding of the second motor;
• the control assembly configured to:
• apply a first electric signal selected from an electric high signal and an electric low signal to the first terminal of the first winding for a first number of regular intervals of time;
• after the application of the first electric signal to the first terminal of the first winding, apply a second electric signal selected from an electric low signal and an electric high signal to the first terminal of the first winding, wherein the second electric signal is different from the first electric signal;
• apply the first electric signal to the first terminal of the second winding for a second number of regular intervals of time;
• and
• after the application of the first electric signal to the first terminal of the second winding, apply the second electric signal to the first terminal of the second winding;
• wherein the first number of regular intervals of time and the second number of regular intervals of time differ by one regular interval of time.