High Voltage Bias Circuit
A technology of bias circuit and voltage doubling circuit, which is applied in the direction of adjusting electrical variables, control/regulating systems, instruments, etc., can solve the problems of large volume of the booster circuit and inability to apply electronic equipment, and achieves the reduction of labor cost and volume. Effect
Inactive Publication Date: 2017-12-15
孟令冬
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Problems solved by technology
[0005] The invention provides a high-voltage bias circuit, which is used to solve the technical problem that the volume of the boost circuit in the prior art is large and cannot be applied to smaller electronic equipment
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[0045] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0046] The high-voltage bias circuit involved in the present invention can be applied to any electronic equipment that needs to work at high voltage, and the electronic equipment often includes some devices that need to work at tens of volts to hundreds of volts, for example, work at tens of volts Detectors of radioactive material dosimeters, dete...
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The invention provides a high-voltage biasing circuit. The high-voltage biasing circuit comprises a processor, a diode voltage doubling circuit, a voltage feedback circuit and a voltage comparator circuit, wherein the voltage feedback circuit comprises a first resistor and a second resistor, and the voltage comparator circuit comprises a first comparator and a second comparator; an output end of the processor is connected with an input end of the diode voltage doubling circuit, and a first end of the first resistor is connected with any stage of voltage doubling branch circuits except the last-stage voltage doubling branch circuit in the diode voltage doubling circuit; a second end of the first resistor is connected with a first end of the second resistor, an in-phase input end of the first comparator and an inverted input end of the second comparator respectively, and a second end of the second resistor is grounded; and an output end of the first comparator is connected with a first external interruption input end of the processor, and an output end of the second comparator is connected with a second external interruption input end of the processor. All required devices of the high-voltage biasing circuit can be subjected to surface mounting through automation equipment, and an electromagnetic coil with relatively large volume is not used, so that the volume of a boosted circuit is greatly reduced.
Description
technical field [0001] The invention relates to power supply technology, in particular to a high-voltage bias circuit. Background technique [0002] At present, many instruments and detection devices (such as ray monitors, etc.) require high-voltage bias power supplies in their work. According to different detectors, the required bias voltage ranges from tens of volts to hundreds of volts. [0003] Generally, a transformer is widely used as a booster circuit to raise the power supply to a high voltage of a corresponding value, so as to provide a bias high voltage for corresponding equipment or instruments. [0004] However, since the core component of the transformer circuit is a transformer, and the transformer is a structure of a coil and a skeleton, which includes thousands of coils, the volume is large, and it cannot be applied to small devices (such as radiation dosimeters, wearable devices, etc. )middle. Contents of the invention [0005] The invention provides a h...
Claims
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IPC IPC(8): G05F1/56
CPCG05F1/56
Inventor 孟令冬
Owner 孟令冬