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converter

A technology of converters and inductors, applied in the field of converters, can solve problems such as loss and large power

Active Publication Date: 2017-11-17
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is a problem of large power loss due to the voltage drop in the parasitic diode

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] figure 1 is a circuit diagram of the converter 1 according to Embodiment 1. The converter 1 is suitably mounted on the vehicle and is connected to the positive and negative terminals of the battery 3 and to the positive and negative terminals of the storage battery 4 , respectively. The converter 1 steps up and down the voltage applied from the battery 3 to convert the voltage, and then applies the converted voltage to the storage battery 4 . As a result, the storage battery 4 is charged.

[0040] The converter 1 includes N-channel type FETs (Field Effect Transistors) 11, 12, 13 and 14, a differential amplifier 15, a feedback circuit 16, a control section 17, inverters 18 and 19, delay devices 20, 21, 22 and 23 , AND circuit 24, capacitor C1, diodes D1, D2, D3 and D4, inductor L1 and resistor R1.

[0041] The drain of FET 11 is connected to the positive terminal of battery 3 and the source of FET 12 is connected to the negative terminal of battery 3 . The source of ...

Embodiment 2

[0128] Image 6 is a circuit diagram of a converter according to Embodiment 2. Similar to converter 1 according to Embodiment 1, converters 5 are each connected to the positive and negative terminals of battery 3 and the positive and negative terminals of storage battery 4 . Similar to converter 1 according to Embodiment 1, converter 5 converts the voltage applied from battery 3 and then applies the converted voltage to storage battery 4 . Also, the converter 5 converts the voltage applied from the storage battery 4 and then applies the converted voltage to the battery 3 .

[0129] The following description is directed to points of difference between converter 5 according to Embodiment 2 and converter 1 according to Embodiment 1. FIG. The constitutional components in Embodiment 2 similar to those in Embodiment 1 are designated with similar reference symbols, and thus detailed descriptions thereof are omitted.

[0130] Converter 5 includes all the constituent components cons...

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PUM

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Abstract

Provided is a converter capable of avoiding the reverse flow of current from the voltage output side to the inductor and with low power loss. In converter 1, the source of FET (11) and the drain of FET (12) are connected to one end of inductor (L1), while the source of FET (13) and the drain of FET (14) are connected to the inductor the other end of the device (L1). The sources of FETs (12) and (14) are connected to each other. The cathode and anode of the diode (D3) are connected to the drain and source of the FET (13), respectively. FET ( 13 ) remains off after a transition from a state where FETs ( 11 ) and ( 13 ) are off to a state where on / off switching of FET ( 11 ) is allowed and FET ( 13 ) is off open. During this time, FETs (11), (12) and (14) are turned on / off individually, so that a battery (4) is created that flows between the drain of FET (13) and the source of FET (14). ) output current. After the output current is generated, the OFF hold of the FET (13) is released.

Description

technical field [0001] The present invention relates to converters for stepping up and stepping down an applied voltage to convert the voltage. Background technique [0002] Currently, a vehicle incorporating a storage battery in addition to a battery is widespread. Such a vehicle is equipped with a converter that steps up and down the output voltage of the battery to convert the output voltage and then applies the converted voltage to the battery. [0003] A converter known in the prior art is a converter comprising: an inductor; a first switch and a second switch, one end of each of which is connected to one end of the inductor; a third switch, one end of which is connected to the inductor. the other end of the inductor; a fourth switch, one end and the other end of which are respectively connected to the inductor and the other end of the second switch, and each of the first switch, the second switch, the third switch, and the fourth switch is turned on / off , so as to sw...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02M1/36H02M3/158
CPCH02M1/08H02M1/38H02M3/1582Y02B70/10H02M1/0048H02M3/158
Inventor 西村次夫
Owner AUTONETWORKS TECH LTD