Camera

Abstract

The invention discloses a camera. The camera comprises a shell as well as a microprocessor, a touch screen, a USB interface, a switch control module, a temperature sensor, a power supply module, a call module, a modem, an audio-video processor and a wireless communication module arranged in the shell, wherein the touch screen, the USB interface, the switch control module, the temperature sensor and the power supply module are all connected with the microprocessor; the audio-video processor is used for receiving a call signal transmitted by the wireless communication module, transmitting the call signal to the modem for modulation or demodulation, and transmitting the modulated or demodulated signal to the microprocessor through the call module; and the power supply module comprises a voltage input end, a transformer, a bridge rectifier, a first capacitor, a first triode, a first resistor, a third resistor, a second triode, a first diode, a second potentiometer, a second capacitor and avoltage output end. The camera has the advantages of simple circuit structure, relatively low cost, convenience in maintenance, and relatively high circuit safety and reliability.

Description

technical field [0001] The invention relates to the field of photographic equipment, in particular to a video camera. Background technique [0002] There are many types of cameras, and the basic principle of their work is mostly to convert optical image signals into electrical signals for storage or transmission. When the user shoots an object, the light reflected on the object is collected by the camera lens, making it focus on the light-receiving surface of the camera device, such as the target surface of the camera tube, and then the optical signal is converted into an electrical signal by the camera device. Get graphic image signal. Existing cameras are applicable to a wide range of scenarios. However, the power supply part of the traditional camera uses many components, the circuit structure is complicated, the hardware cost is high, and it is inconvenient to maintain. In addition, because the power supply part of the traditional camera lacks corresponding circuit pr...

AI Technical Summary

Problems solved by technology

However, the power supply part of the traditional camera uses many components, the circuit structure is complicated, the hardware cost is high, and it is inconvenient to maintain

In addition, due to the lack of corresponding circuit protection functions in the power supply part of traditional cameras, such as: lack of current limiting protection functions, the safety and reliability of the circuit are poor

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