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A large power wide range adjustable DC linear voltage regulated power supply

A linear regulated power supply with a wide range of technology, applied in the direction of converting AC power input to DC power output, converting DC power input to DC power output, and adjusting electrical variables. It can solve problems such as small power, bulky, and narrow voltage regulation range question

Pending Publication Date: 2018-12-21
严添明
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Therefore, in view of the above problems, the present invention proposes a high-power wide-range adjustable DC linear regulated power supply, which solves the problems of the existing DC linear regulated power supply with narrow voltage regulation range, low power, and bulky

Method used

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  • A large power wide range adjustable DC linear voltage regulated power supply
  • A large power wide range adjustable DC linear voltage regulated power supply
  • A large power wide range adjustable DC linear voltage regulated power supply

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Embodiment Construction

[0016] The present invention will be further described in conjunction with the accompanying drawings and specific embodiments.

[0017] refer to Figure 1 to Figure 6 , this embodiment provides a high-power wide-range adjustable DC linear regulated power supply, including a switching power supply input circuit 1, an auxiliary switching power supply circuit 2, a power factor compensation boost circuit 3, a switching power supply isolation power conversion circuit 4, a voltage and current Controllable BUCK circuit 5, load voltage and current display circuit 6.

[0018] Such as figure 2 , the switching power supply input circuit 1 includes a short circuit protection circuit 11 , a first EMI circuit 12 , a second EMI circuit 13 , a first rectification and filtering circuit 15 and a second rectification and filtering circuit 14 . In order to reduce mutual interference, two sets of EMI circuits and two sets of independent rectification and filtering circuits are used for isolated...

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Abstract

The invention relates to the field of voltage stabilized power supply, in particular to a high-power wide-range adjustable DC linear regulated power supply, which includes a switching power input circuit, an auxiliary switch power supply circuit, the power factor compensation boost circuit, the isolated power conversion circuit of the switching power supply, the voltage and current controllable BUCK circuit and the load voltage and current display circuit. By the cooperatively connected circuit modules, the invention solves the problems of narrow voltage regulation range, small power and bulkyof the existing DC linear voltage stabilized power supply.

Description

technical field [0001] The invention relates to the field of voltage stabilized power supplies, in particular to a high-power and wide-range adjustable DC linear stabilized voltage power supply. Background technique [0002] The existing DC linear regulated power supply has a narrow voltage regulation range, small power, large volume, and heavy weight. The laboratory DC linear regulated power supply has two circuits of 150W, and the power supply weighs 15kg, and two circuits of 300W exceed 30kg. The piezoelectric power supply adopts a series-type voltage stabilization method, and uses the regulating transistor VCE to realize the voltage stabilization control, which has high power consumption and low efficiency, especially at low voltage output, and the efficiency is even lower. The overcurrent protection adopts relay control with contacts, and the power Insufficient, the relay is frequently switched on and off, which cannot meet the requirements of the inverter power supply ...

Claims

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Application Information

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IPC IPC(8): H02M7/217H02M3/156H02M1/42H02M1/14H02H7/125
CPCH02H7/1257H02M1/14H02M1/4258H02M3/156H02M7/217H02M1/0009Y02B70/10
Inventor 严添明
Owner 严添明
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