A circuit for increasing voltage regulation range
A technology of voltage regulation and range, which is applied in the direction of radiation measurement, conversion equipment without intermediate conversion to AC, instruments, etc., can solve the problems of small coupling capacitance, high common-mode rejection ratio, technical difficulty, etc., and meet the adjustment speed , Increase the upper limit of the output voltage, and expand the effect of the upper limit of the output voltage
Active Publication Date: 2022-04-26
PEKING UNIV
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Problems solved by technology
[0008] (3) The coupling capacitance between the light emitting tube and the light receiver is very small (<2pF), and the common mode rejection ratio is high;
But first of all, the technical difficulty is high, and the reliability of ultra-high withstand voltage optocouplers is not necessarily good; secondly, there is always an upper limit for the withstand voltage of optocouplers and optocouplers. If the energy range required by the index is further expanded, it may still not be able to meet the requirements.
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[0034] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.
[0035]It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the present invention. Limiting conditions, so there is no technical substantive meaning, any modification of structure, change of proportional relationship or adjustment of size, without affecting the effect and purpose of the present invention, should still fall within the scope of the present invention. The disclosed technical content must be within the scope covered. At the same time, terms such as "upper",...
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The present invention provides a circuit for increasing the voltage regulation range, which comprises the positive pole of the first power supply connected to one end of the first photocoupler, the other end of the first photocoupler connected to the first end of the first resistor, and the first resistor The second end of the third resistor is connected to the first end of the third resistor, and the second end of the third resistor is connected to the negative pole of the first power supply; the positive pole of the second power supply is connected to one end of the second optocoupler, and the second end of the second optocoupler The other end is connected to the second end of the third resistor, the first end of the third resistor is connected to the first end of the second resistor, and the second end of the second resistor is connected to the negative pole of the second power supply; one end of the load resistor is connected to the first end of the first resistor. The first end of the resistor is connected, and the other end is connected to the second end of the second resistor. The first end of the first resistor is the output end of the output voltage, and the sampling end of the output voltage is located between the two ends of the load resistor. The circuit for increasing the voltage adjustment range of the invention can increase the upper limit of the output voltage, and has fast adjustment speed and low ripple level.
Description
technical field [0001] The invention relates to the technical field of electronic circuits, in particular to a circuit for increasing the voltage regulation range. Background technique [0002] Charged particle detection is one of the most important parts of space exploration, including low-energy, medium-energy and high-energy charged particle detection. In order to measure the energy of charged particles, the Faraday retardation potential analyzer, as an important device for detecting low-energy charged particles in space, needs to provide a matching voltage output. The size of the blocking voltage determines the detection energy range of charged particles. A large detection energy range requires a high-span scanning voltage range (for example, 0 to 10kV), and a low ripple coefficient is required for accurate energy measurement. On the other hand, the time to complete a scan limits the sampling rate. To increase the sampling rate, a rapidly adjustable voltage output is ...
Claims
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IPC IPC(8): H02M3/06G01T7/00
CPCH02M3/06G01T7/00
Inventor 陈傲陈鸿飞何建森于向前施伟红邹鸿朱星宇侯传鹏
Owner PEKING UNIV