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Motorcycle magneto output voltage segmented rectifying method and voltage regulator

A technology of output voltage and magneto, which is applied in the direction of output power conversion device, AC power input conversion to DC power output, electrical components, etc., can solve the problems of magneto cost increase, etc., and achieve cost reduction and voltage regulator cost, The effect of stable output voltage and improved stability

Active Publication Date: 2019-10-08
CHONGQING HECHENG ELECTRIC APPLIANCE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] If you want to use the electric energy output by the magneto at low speed, you need to increase the low-speed output AC voltage of the magneto, and you need to improve the magnetic steel, silicon steel sheet material, and winding of the magneto, which will increase the cost of the magneto

Method used

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  • Motorcycle magneto output voltage segmented rectifying method and voltage regulator
  • Motorcycle magneto output voltage segmented rectifying method and voltage regulator
  • Motorcycle magneto output voltage segmented rectifying method and voltage regulator

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Embodiment

[0072] Embodiment: A segmental rectification method for the output voltage of a motorcycle magneto, including an upper bridge arm made of silicon controlled rectifiers and a lower bridge arm made of MOSFETs, and a plurality of upper bridge arms and lower bridge arms are combined to form a rectifier bridge; specifically The rectification method is as follows:

[0073] 1) Detect the peak value of the no-load AC voltage output by the magneto, and judge the relationship between the no-load AC voltage peak value and the set value of the DC output voltage.

[0074] 2) If the peak value of the no-load AC voltage is less than the set value of the DC output voltage, the upper bridge arm is controlled to be completely turned on, and the lower bridge arm MOSFET is controlled to conduct the duty cycle, so that the rectifier bridge operates in the BOOST chopper boost state, Make the DC output voltage reach the set value; among them, the MOSFET conduction duty cycle is obtained by convertin...

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Abstract

The invention discloses a motorcycle magneto output voltage segmented rectifying method and a voltage regulator. The rectifying method comprises the following steps: 1) the peak no-load AC voltage value of the magneto is detected; 2) if the no-load AC voltage value is less than the set value of the DC output voltage, the upper bridge arm is controlled to be completely turned on and the turn-on duty ratio of the lower bridge arm MOSFET is controlled; and 3) if the no-load AC voltage value is greater than or equal to the set value of the DC output voltage, the conduction angle of the upper bridge arm thyristor is controlled and the lower bridge arm MOSFET is controlled to turn off at the phase sinusoidal AC positive half wave and turn on at the sinusoidal AC negative half wave. The voltage regulator comprises the upper bridge arm and the lower bridge arm. The upper bridge arm is composed of a silicon controlled rectifier and the lower bridge arm is composed of the MOSFET. The voltage regulator further comprises a master controller MCU, an analog signal conditioning circuit, an AC phase acquisition circuit, a MOSFET driving circuit and a silicon controlled rectifier driving circuit. The overall output voltage of the magneto can be reduced, thereby reducing the cost of the magneto and the cost of the voltage regulator and improving the reliability of the voltage regulator.

Description

technical field [0001] The invention relates to the technical field of motorcycle voltage conversion, in particular to a method for segmentally rectifying the output voltage of a motorcycle magneto and a voltage regulator. Background technique [0002] The mainstream of the existing motorcycle voltage converter adopts the rectification circuit constructed by thyristor, diode / silicon, diode / MOSFET, and MOSFET to rectify and output DC voltage to supply power to the back-end equipment. This rectification and voltage regulation mode is a step-down Pressure regulator. The effective value of the AC voltage output by the generator is proportional to the engine speed. In order to enable the voltage regulator to output the rated voltage at idle speed and the magneto to not output too high voltage at high speed, the output voltage of the constant magneto motor is designed to be phase-controlled at idle speed. After rectification, it is slightly higher than the rated voltage of the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/162
CPCH02M7/1623
Inventor 李红星王开云
Owner CHONGQING HECHENG ELECTRIC APPLIANCE
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