Working principle and functional requirements of electrothermal mouse pad scheme development

Working principle and functional requirements of electrothermal mouse pad scheme development

This paper introduces the working principle of the development of electrothermal mouse pad; The cold winter is coming. The office tool often used by long-term office workers is the computer. The palm is stiff and the operation is not sensitive due to the cold weather. Therefore, the solution development of electric mouse pad solves this problem.

principle

The product development is to control the PTC heating plate in the mouse pad by single chip microcomputer. The power supply is connected through the USB interface, and the heat generated can be constant at about 40 degrees under the control of the temperature control element.

Electric mouse pad

Function introduction

1. One click control. After opening the switch, the mouse pad heats up rapidly (you can feel it in about 10 seconds);

2. Alloy heating film, faster heat conduction and uniform heating (wide area, can cover the whole keyboard);

3. Single chip microcomputer software program controls the rated temperature of PTC heating element (generally, the constant temperature is set to 40 ℃;

4. Single chip microcomputer selection: it adopts the 8-bit single chip microcomputer ny8a062d model of Jiuqi single chip microcomputer, and the packaging model is sop14.

technical parameter

1. Product constant temperature: about 40 ℃. When you don't need to keep warm, just pull out the glow plug;

2. Rated voltage: 5V;

3. Current: about 450mA;

4. No driver is required and supports hot plug function;

5. The product is powered by USB socket and can be supported by common computer and mobile power supply.

Electric mouse pad

Use attention

1. Due to the heating element in the USB electric mouse pad, attention should be paid to waterproof. If you get wet accidentally, unplug the USB interface immediately.

2. USB electric mouse pad will increase the burden of computer power supply. Before purchasing, please ask the seller for voltage requirements. Do not damage the computer power supply due to overload;

3. The heating material of the mouse pad has a layer of transparent plastic, which does not need to be torn and is easy to break. It is used without tearing and has protective effect;

4. This product is only applicable to the power supply of computer USB interface or special transformer adapter. It is strictly prohibited to connect AC directly;

5. Although a variety of connections can be made, in order to protect the computer, a computer is connected to only one electric heating product.