Unlock instant, AI-driven research and patent intelligence for your innovation.

Power supply apparatus with discharging switching element operated by one-shot pulse signal

A one-shot pulse, power supply device technology, applied in electrical components, circuit devices, DC network circuit devices, etc., can solve the problems of load failure, the output voltage of the power supply device cannot drop rapidly, etc.

Inactive Publication Date: 2007-05-16
NEC ELECTRONICS CORP
View PDF1 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when the power supply unit is deactivated, the output voltage of the power supply unit cannot drop rapidly due to the existence of the stabilizing capacitor, which will cause load failure

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
  • Power supply apparatus with discharging switching element operated by one-shot pulse signal
  • Power supply apparatus with discharging switching element operated by one-shot pulse signal
  • Power supply apparatus with discharging switching element operated by one-shot pulse signal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] Before describing the preferred embodiment, a prior art power supply device will be explained with reference to FIGS. 1 and 2 .

[0019] In FIG. 1 , an electronic device 100 such as a mobile phone device, a mobile game device, etc. is shown, and three power supply units 101, 102 and 103 are supplied with a battery voltage V from a battery 200, for example 3.7V. B , to generate power supply voltages V1 , V2 and V3 , such as 2V, 2.5V and 3.0V, respectively supplied to the integrated circuit units 104 , 105 and 106 . And, stabilizing capacitors 107, 108, and 109 are connected to outputs of the power supply units 101, 102, and 103, respectively. The power supply units 101, 102 and 103 are turned ON and OFF by control signals CNT1, CNT2 and CNT3 from the control unit 110 formed by a microcomputer, respectively.

[0020] FIG. 2 shows that the prior art power supply device is applied to one of a plurality of power supply units, such as 101 in FIG. 1 .

[0021] The power supp...

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

No PUM Login to View More

Abstract

In a power supply apparatus, a power supply voltage generating circuit generates a power supply voltage and transmits it to an output terminal, and a discharging switching element is connected between the output terminal and a ground terminal. The discharging switching element is turned ON by a one-shot pulse signal.

Description

technical field [0001] The present invention relates to a power supply device having a discharge switching element. Background technique [0002] Typically, a power supply device is connected to a load such as an integrated circuit unit via a stabilizing capacitor. Therefore, when the power supply unit is deactivated, the output voltage of the power supply unit cannot drop rapidly due to the presence of the stabilizing capacitor, which will cause load failure. [0003] In order to rapidly decrease the output voltage of the power supply unit when the power supply unit is deactivated, a discharge switching element is introduced and connected between the output of the power supply unit and ground (see: JP-1-303048-A). [0004] In a related art power supply device including such a discharge switching element, the discharge switching element is turned ON and OFF in accordance with a control signal for activating and deactivating the power supply device. This will be explained i...

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(China)
IPC IPC(8): H02J1/00
CPCG05F1/56
Inventor 伊藤正厚
Owner NEC ELECTRONICS CORP