Power Mixer circuit diagram

Commonly used in industrial and mining enterprises, a power mixer is employed for mixing materials. Due to the presence of odors or dust, operators should maintain a safe distance from the equipment. The system utilizes light control for operation. A standard flashlight can be used for remote command within a distance of 10 meters from the mixer to manage its functions. The entire circuit can be housed in a plastic box, making it convenient for field use. Component selection includes the AN7812 three-terminal regulator IC, transistors VT1 to VT3 (9014), photoresistors RL1 and RL2 (MG44-03, which can be substituted with other light resistors with a resistance of 5k in light and 1M in darkness), general light-emitting diodes VD2 and VD3, and a power transformer rated between 8W to 10W. Other components are selected as illustrated in the schematic.

This power mixer circuit design is tailored for industrial and mining applications, where the mixing of materials often generates harmful dust and unpleasant odors. The use of light control allows the operator to maintain a safe distance from the mixer, enhancing safety and comfort during operation. The circuit is designed to be compact and portable, with all components enclosed in a durable plastic housing suitable for outdoor use.

The heart of the circuit is the AN7812 three-terminal voltage regulator, which provides a stable output voltage necessary for the operation of the other components. Transistors VT1, VT2, and VT3, all of type 9014, serve as switching devices that control the power supplied to the mixer based on the light signals received from the photoresistors. The photoresistors RL1 and RL2 are crucial for detecting the intensity of light from the flashlight, enabling remote control functionality. These components can be replaced with other suitable light-dependent resistors, ensuring flexibility in component sourcing.

Light-emitting diodes VD2 and VD3 function as indicators, providing visual feedback on the operational status of the mixer. The power transformer, rated for 8W to 10W, supplies the necessary power to the circuit, ensuring efficient operation of the mixer and control system.

Overall, this circuit design exemplifies a practical solution for safely controlling a power mixer in environments where direct operator interaction is not feasible due to hazardous conditions. The thoughtful selection of components and their arrangement within the circuit contribute to a reliable and effective operation, making it suitable for various industrial applications. Commonly used in industrial and mining enterprises power mixer, mixing materials because often smell or dust, the operator should not be too close to the contact. Light control power mixer (or other appliances) circuit, an ordinary flashlight light for remote command within 10m from the mixer to control the work shown. The entire circuit can be loaded plastic box, place is easy to use in the field.Component selection: IC selected AN7812 three-terminal regulator IC.

VT1 ~ VT3 9014 selection transistor. RL1 and RL2 selection MG44-03 photoresistor plastic resin package can also be used other light resistance 5k, dark resistance of common photoresistor instead of 1M. VD2, VD3 general light emitting diode. T is the power 8W ~ 10W power transformer. Other components chosen as shown in Fig.