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npn type bjt combined capacitor charging and discharging controller with wide working voltage range

A technology of working voltage range and combined capacitance, which is applied in the direction of control/regulation systems, instruments, electrical components, etc., can solve the problems of reducing reliability, occupying space, miniaturization of converters and high efficiency, etc., to achieve integration, The effect of simple structure

Active Publication Date: 2021-06-11
浙江日风电气股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, both the independent auxiliary power supply and the non-independent auxiliary power supply branch need to occupy a certain space, and at the same time, it will increase the loss and reduce the reliability, which will have a negative impact on the miniaturization and high efficiency of the entire converter.

Method used

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  • npn type bjt combined capacitor charging and discharging controller with wide working voltage range
  • npn type bjt combined capacitor charging and discharging controller with wide working voltage range
  • npn type bjt combined capacitor charging and discharging controller with wide working voltage range

Examples

Experimental program
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Effect test

Embodiment 1

[0041] refer to figure 1 and image 3 , an NPN type BJT combined capacitor charging and discharging controller with a wide operating voltage range, including the port V cc , port V ss and port Out, also includes NPN type BJT tube Q 1 , capacitance C 1 , resistance R 1 , controlled current source and output unit, the output unit includes port a and port b, resistance R 1 One end of the port V cc connected, the resistor R 1 The other end of the NPN type BJT tube Q 1 collector, capacitor C 1 One end of the output unit is connected to the port a of the output unit, and the NPN type BJT tube Q 1 The base is connected to the first port of the controlled current source, and the NPN type BJT tube Q 1 The emitter of the controlled current source is simultaneously connected with the second port of the controlled current source, the capacitor C 1 the other end and the port V ss Connected, the port b of the output unit is connected to the port Out; the current i flowing out of...

Embodiment 2

[0054] refer to figure 2 and image 3 , an NPN type BJT combined capacitor charging and discharging controller with a wide operating voltage range, including the port V cc , port V ss and port Out, also includes NPN type BJT tube Q 1 , capacitance C 1 , resistance R 1 , a controlled current source and an output unit, and the output unit includes port a, port b, port V dd and port Out 1 , the output unit also includes NPN type BJT tube Q b1 , PNP type BJT tube Q b2 , resistance R b1 , capacitance C b1 , Diode D b1 , Diode D b2 and diode D b3 , NPN type BJT tube Q b1 collector with port V dd Connected, NPN type BJT tube Q b1 The base of the output unit is simultaneously connected with the port a of the output unit and the PNP type BJT tube Q b2 The base is connected, PNP type BJT tube Q b2 collector with port V ss Connected, NPN type BJT tube Q b1 The emitter of the PNP type BJT tube Q b2 The emitter, resistor R b1 One end of the capacitor C b1 one end of ...

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Abstract

The embodiment of the invention discloses an NPN type BJT combined capacitor charging and discharging controller with a wide working voltage range, including a port V cc , port V ss and port Out, also includes NPN type BJT tube Q 1 , capacitance C 1 , resistance R 1 , a controlled current source and an output unit. As a part of the converter, the switching duty cycle and duty cycle of power semiconductor devices (including IGBT tubes, MOSFET tubes, BJT tubes, etc.) in the converter can be adjusted by changing the charging and discharging speed and depth of the capacitor. The invention has simple structure, is favorable for integration, and has a wide operating voltage range, and is suitable for any power electronic circuit including high-voltage side power semiconductor devices or low-voltage side power semiconductor devices, and is especially suitable for applications with higher input voltages.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to an NPN type BJT combined capacitor charging and discharging controller with a wide working voltage range. Background technique [0002] For the sake of standardization, the operating voltage range of most existing commercially available controllers is basically in the range of several volts to tens of volts. When the input voltage range of the converter is inconsistent with the working voltage range of the controller, most of them will use an independent auxiliary power supply or a non-independent auxiliary power supply branch to supply power to the controller to ensure its normal operation. However, both the independent auxiliary power supply and the non-independent auxiliary power supply branch need to occupy a certain space, and will also increase loss and reduce reliability at the same time, which will have a negative impact on the miniaturization and high efficienc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M3/158
CPCH02M3/158
Inventor 卢钢陈怡
Owner 浙江日风电气股份有限公司