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Driving circuit for ultraviolet band CCD cooler and refrigeration device

A driving circuit, a technology in the ultraviolet band, applied in the field of photoelectric detection in the ultraviolet band, can solve problems such as switching noise, and achieve the effects of improving stability, flexible circuit parameter setting, and simple circuit structure

Inactive Publication Date: 2018-02-23
CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems existing in the prior art, the present invention provides a driving circuit for a CCD refrigerator, which solves the problem that the traditional driving circuit generates switching noise during the cooling process

Method used

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  • Driving circuit for ultraviolet band CCD cooler and refrigeration device
  • Driving circuit for ultraviolet band CCD cooler and refrigeration device
  • Driving circuit for ultraviolet band CCD cooler and refrigeration device

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0022] Please refer to figure 1 , in one embodiment of the present invention, a kind of driving circuit for ultraviolet band CCD refrigerator is provided, and this circuit comprises operational amplifier U, field effect tube V, capacitor C, first resistance R1, second resistance R2 and the first Three resistors R3. The input voltage A of the drive circuit is connected to the positive terminal (pin 3) of the operational amplifier U; the negative terminal (pin 2) of the operational amplifier U is connected to pin 1 of the capacitor C and pin 1 of the second resistor R2; pin 6 of the ope...

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Abstract

The invention discloses a driving circuit for an ultraviolet band CCD cooler. The driving circuit comprises an operational amplifier, a field effect tube, a capacitor, a first resistor, a second resistor and a third resistor; the input voltage of the driving circuit is connected with the anode of the operational amplifier; the cathode of the operational amplifier is connected with one end of the capacitor and one end of the second resistor separately; the output end of the operational amplifier is connected with the other end of the capacitor and one end of the first resistor separately; the other end of the first resistor is connected with the grid electrode of the field effect tube; the other end of the second resistor is connected with the first end of the third resistor; the second endof the third resistor is connected with the source electrode of the field effect tube; the third and fourth ends of the third resistor are connected to the ground; the drain electrode of the field effect tube is connected with the current input end of the Peltier cooler; the other end of the Peltier cooler is connected with a power supply. The driving circuit has the advantages of being simple, reliable, low in cost and capable of not generating switching noise.

Description

technical field [0001] The invention relates to the technical field of ultraviolet band photoelectric detection, in particular to a driving circuit and a refrigeration device for an ultraviolet band CCD refrigerator. Background technique [0002] Ultraviolet imaging spectrometers generally use CCD detectors as photoelectric conversion devices. Due to the weak light intensity in the ultraviolet band, in order to meet the requirements of the signal-to-noise ratio index, the noise problem must be considered when the CCD detector is used in ultraviolet band detection. When the CCD detector is working, cooling the CCD detector body and reducing the temperature of the CCD detector body can effectively reduce the noise of the CCD detector and improve the signal-to-noise ratio of the CCD detector. The Peltier cooler is a semiconductor cooler commonly used in the cooling of CCD detectors. Its working principle is to use the Peltier effect. When the driving current is applied to the P...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/56F25B21/02
CPCG05F1/561F25B21/02F25B2321/0212
Inventor 韩振伟宋克非刘阳马庆军
Owner CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI
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