Protection circuit and circuit protection method for head-mounted display and electronic equipment
A technology for protecting circuits and electronic equipment, applied in the field of protection circuits and circuit protection of electronic equipment, and head-mounted displays, can solve the problems of increasing the complexity of the protection circuit architecture, high price of temperature protection chips, and poor implementability. Strong implementability, elimination of potential safety hazards, and low cost effects
Active Publication Date: 2017-12-08
BEIJING PICO TECH
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Problems solved by technology
In the prior art, the protection circuit of electronic equipment often uses a temperature protection chip. However, due to the high price of the temperature protection chip and the increase in the complexity of the overall structure of the protection circuit, the existing solutions for implementing the protection circuit of electronic equipment have high costs. and poor implementability
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[0033] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.
[0034] figure 1 A circuit diagram of a protection circuit of an electronic device according to an embodiment of the present invention is shown. Such as figure 1 As shown, the protection circuit includes: a first diode D1, a second diode D2, a first resistor R1, a second resistor R2, a third resistor R3 and a capacitor C1.
[0035] The anode of the first diode D1 is connected to one end of the first resistor R1; the cathode of the first diode D1 is connected to the cathode of the second diode D2, one end of the third resistor R3 and one end of the capacitor C1; the first The other end of the resistor R1 is connected to one end of the second resistor R2; the other end of the second resistor R2, the third resistor R3 and the other end o...
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The invention discloses a head-mounted display, a protection circuit for electronic equipment and a circuit protection method. The protection circuit includes: the anode of the first diode D1 is connected to one end of the first resistor R1; The negative pole is connected to the negative pole of the second diode D2 and one end of the third resistor R3; the other end of the first resistor R1 is connected to one end of the second resistor R2; the other end of the second resistor R2 is connected to the other end of the third resistor R3 Both are grounded; wherein, the first diode D1 has specific leakage current characteristics. The technical scheme provided by the invention realizes the automatic protection of electronic equipment by optimizing the selection of diodes, does not require additional lines, has simple structure, low cost, and strong implementability. Applying this solution to the head-mounted display device further protects the device and the user, eliminates potential safety hazards, and meets the use requirements of the head-mounted display device.
Description
technical field [0001] The invention relates to the technical field of visual devices, in particular to a head-mounted display, a protection circuit of an electronic device and a circuit protection method. Background technique [0002] In order to protect electronic equipment and consumers who use electronic equipment, the protection circuit of electronic equipment is widely used. The protection circuit is mainly aimed at the situation that the temperature of electronic equipment rises abnormally due to abnormal circuit such as short circuit or open circuit. When the temperature rises to the preset value Control electronics are automatically powered off. In the prior art, the protection circuit of electronic equipment often uses a temperature protection chip. However, due to the high price of the temperature protection chip and the increase in the complexity of the overall structure of the protection circuit, the existing solutions for implementing the protection circuit of ...
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IPC IPC(8): H02H7/20H02H5/04
Inventor 邓雪冰
Owner BEIJING PICO TECH