Solar power charging system

a technology of solar energy and charging system, which is applied in the field of solar power charging system, can solve the problems of low efficiency of capacitor charging, inability to meet the maximum power condition of capacitor charging method at the predetermined constant voltage level,

Inactive Publication Date: 2002-07-04
TOKIN CORP
View PDF0 Cites 42 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013] The above and other objects, features and advantages of the present invention will be apparent from the following descriptions.

Problems solved by technology

This means that as long as the capacitor is charged at the constant voltage level, the efficiency of charging the capacitor is low.
The method of charging the capacitor at the predetermined constant voltage level is incapable of satisfying the maximum power condition.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Solar power charging system
  • Solar power charging system
  • Solar power charging system

Examples

Experimental program
Comparison scheme
Effect test

second embodiment

[0064] A second embodiment according to the present invention will be described in detail with reference to the drawings. FIG. 8 is a circuit diagram illustrative of an internal circuit configuration of other voltage converter circuit included in the solar power charging system in a second embodiment in accordance with the present invention The second embodiment is different from the first embodiment only in the circuit configuration of the voltage converter circuit.

[0065] The voltage converter circuit 2A may comprise a DC chopper circuit of boosting-up-and-down type. The voltage converter circuit 2A has capacitors C1, C2 and C3, inductors L1 and L2, a diode D1, an n-channel transistor Qn1, and a resistance R1. The voltage converter circuit 2A also has the power input terminal 21, the charge voltage output terminal 22, the driving clock input terminal 23, and the detected voltage output terminal 24.

[0066] The power input terminal 21 is connected through the capacitor C1 to a ground....

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
charging voltageaaaaaaaaaa
voltage-aaaaaaaaaa
voltageaaaaaaaaaa
Login to view more

Abstract

A solar power charging system comprising: a voltage converter for converting a voltage level of an original voltage generated by a solar battery into generate a charging voltage and for charging a capacitor by the charging voltage; and a duty ratio control circuit electrically coupled to the voltage converter for supplying a driving clock to the voltage converter for allowing the voltage converter to operate based on the driving clock, wherein the duty ratio control circuit adjusts a duty ratio of the driving clock based on a maximum charge power which depends on the original voltage generated by the solar battery.

Description

[0001] 1. Field of the Invention[0002] The present invention relates to a solar power charging system, and more particularly to a solar power charging system for charging a power generated from a solar battery into an electric double layer capacitor at a high efficiency.[0003] 2. Description of the Related Art[0004] Advanced power systems integrate the solar power charging system which includes the solar battery and the electric double layer capacitor, so that a power is generated during the daytime and the generated power is consumed in the night in order to respond to environmental and energy requirements. This solar system is, for example, disclosed in Japanese laid-open patent publication No. 10-66281. It is important for the solar power charging system to increase the efficiency of supplying the generated power to the capacitor.[0005] FIG. 1A is a block diagram illustrative of a power system including a conventional solar power charging system. FIG. 1B is a block diagram illust...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(United States)
IPC IPC(8): H02J7/10H01M10/44H02J7/35H02M3/156
CPCH02J7/35H02M3/005H02M3/1563Y02E10/566Y02E10/56
Inventor ARAI, SATOSHI
Owner TOKIN CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap