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Step-up device

A technology of a booster device and a booster circuit is applied in the directions of instruments, regulating electrical variables, and conversion equipment without intermediate conversion to AC, which can solve the problem of high cost and achieve the effect of saving costs.

Inactive Publication Date: 2009-04-29
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the cost of using a chip to increase the voltage is relatively high

Method used

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Embodiment Construction

[0013] see figure 1 , The boosting device of the present invention includes a reference voltage circuit, a first boosting circuit, a second boosting circuit and a third boosting circuit. The boosting device of the present invention takes the voltage of the reference voltage circuit as a reference, superimposes the PWM pulse voltage through each boosting circuit, boosts the voltage by 12V, and selects different numbers of boosting circuits according to needs to obtain the required high voltage.

[0014] Such as figure 1 In the boost device shown, points 1, 2, 3, and 4 are all PWM pulse points with a certain duty cycle, and the amplitude is 12V.

[0015] The reference voltage circuit includes a Schottky diode D1, a current storage inductor L1 and a capacitor C1. The reference voltage circuit is connected to the DC-DC chip at the lower part of IC U1. The DC-DC chip converts the 12V direct current into PWM pulses through the BUCK method, and the PWM pulses pass through the Scho...

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Abstract

A booster unit is prepared as connecting reference voltage circuit to PWM pulse for converting PWM pulse to be reference voltage required by host board, forming booster circuit by stopping capacity and capacity, connecting said stopping capacity to output of PWM pulse then to output of reference voltage for making PWM pulse pass through, connecting said stopping capacity to output of reference voltage then to said capacity to use voltage sun transmitted by reference voltage and PWM pulse to charge said capacity for outputting booster voltage.

Description

【Technical field】 [0001] The invention relates to a voltage boosting device, in particular to a voltage boosting device using electronic components to boost voltage. 【Background technique】 [0002] In the design of digital circuits, the power supply is mostly 5V and 3.3V, but sometimes there are special cases that require some high voltage. In this way, some chips are needed to achieve the purpose of voltage boost. However, the cost of using a chip to increase the voltage is relatively high. 【Content of invention】 [0003] The technical problem to be solved by the present invention is to provide a voltage boosting device, which does not need a chip to achieve the purpose of boosting the voltage. [0004] The technical solution adopted in the present invention is: provide a voltage boosting device, the voltage boosting device includes a reference voltage circuit, the reference voltage circuit is connected with the PWM pulse, and converts the PWM pulse into a reference vol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05F3/16H02M3/07
Inventor 白骥李坚洪文生柳雪峰全晓荣
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD