JPS5895934A - Dc power source supply circuit - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses a plurality of DC power supplies to output different voltages to a plurality of load devices gLVr-power in a circuit that outputs different voltages to each power supply. A part of the power is collected and used as a DC power supply circuit that supplies some loads via a stabilized power supply circuit.

When supplying one power source to each device and each circuit that make up the system in an electronic controller or an electronic pointer, the issues are (a) load power capacity and (b) power supply capacity in the event of a failure.
The above two points regarding countermeasures are #important.

Figure 1 shows a conventional IN9 source supply circuit.
VM1, [2, Naru, ηru+1 are power supplies, and each unit has Pl (,4), P2(A), PW(
,4), has a capacity of PW+1 (,4), and (
A'o -En -1) is a load device, and N1 (,4) and I2 (,4) are respectively in the consumption 1 flow valley of each load device.
, Ile (, 4). EC refers to a device that constitutes a common part in a system, such as a central processing unit in a computer, and if the power supply to the device is interrupted and ml-& becomes unusable, This is the heart of the system, which affects the entire system and makes it inevitable for the system to go down. Therefore, the two Kei M4+1 units shown in Figure 1
A circuit is made to supply power to the common equipment EC, so that even if one of the two units fails, the other one will be connected to the common unit @
The system will be configured to enable supply to EC.

However, in this system, 1 individual load device and 1 common device i gf s 1 + 2 power supplies are required for 1,000 load devices, and additionally 2 power supplies are required to supply power to the common device EC. The amount of 11 Kutani of the two power supply units + 1 is the consumption @ current capacity C for the common seal Bc under normal conditions.
(,4)'s / is enough! It is.

The purpose of the present invention is to take this point into consideration and to develop a unique power supply device in general for supplying power to the common device EC.

This book provides an economical way to supply a direct 6'lul source circuit tube, which is capable of supplying a W source without having to deal with it, but with adequate failure protection.

In order to achieve all of the above objects, the invention is based on the common equipment and other individual devices that make up the system.

Power is supplied using several power supply devices each outputting a different voltage to a plurality of load devices [fi
In the power supply circuit, a portion of the output of each power supply device is supplied to a false separate load device corresponding to each power supply device,
The remaining output of the cooling device is collected by each power supply device using a diode OR circuit via a stabilized power supply circuit, and is supplied to the common load.

Hereinafter, one embodiment of the present invention will be explained with reference to FIG.

In Fig. 2, the power supply unit @1n1fi returns 2. # Is it possible to supply power to each load device 1 1 1 1 1 1 1 1 1 1 1 by using a standard product that has been modularized, such as a commercially available product, and the consumption flow rate required by each load device * I
DJ), I2 (,4), full (,4) K exactly matching ll current capacity modularized power supply chamber 11 薊2.
Obtaining vision is difficult.

Therefore, the power supply device pQ'M1. M2. There is a difference in current capacity between the supply current capacity of 1f and the consumption of the load device (Eo~En-1) as follows: This power supply device Hiro M
1. Bunch 12. The power supply device Pg″M1, FIFM2.1g″M is installed using the surplus power of the supply W flow capacity of the polishing M calculation.
A part of the output from n is connected to the corresponding load device (EO~
En-1) While supplying K, the margin of the supply current capacity is set to b of Kamegen iron ElfM1. The current is shunted and taken out from all voltages M2 and FWM via a stabilized power supply circuit, and the surplus current is supplied to the common device EC.

Select the one with the smallest capacity that satisfies the following conditions: Pl(,4)≧11+C(A) 11+C(A) 11+J12 and IgMn as Pa(,4)≧”” k c(J) tal as M1.

Electric m k fit #'M1, 71FM2, fM
The remaining amount supplied to the n or false separation devices Eo, El, and Ex-i is expressed by the formula (1) Zl (A) - Pl -11≧V-Lrc (A) (41
121 formula 19 % formula % 131 formula 1 -Zs(,4) -Ps -nor≧ , j, -C(
A) It is +61.

141.151. L6+ Formula L l) Z 1 (')
* I2 (A) e” (j) B minimum capacity weight 20
is equal to rtoIC(').

Here, let's go to c-zo.

If this is collected by shunting it with a diode through the gold stabilizing power supply circuit IR for five gold power supply devices, then X (A) −sZ
O-, "-1; 2 = 1" Clfu).If you transform the right side of ()), IL, C= %-ro"C 畔(10τ↓go)C =C+ ,→7 cts+ Become.

Looking at this (Type 81), it is a book that combines the current consumption of the common device EC and the power supply @ 57M1, t or [2, η Hiiragi.

This means that even if one of the b power supplies ik [I RIMl, or 1g'M2, (M'Mn) goes down, the current to the common device EC will not go down and the system will not go down. The invention is to improve the ms supply to the common &fi [IL], which is the essential part of the system's operation.
/Th('% is power supply &&) Danger can be dispersed.

The shunt circuit outputs different voltage sounds @ 9 ms Stabilizing power supply circuit that stabilizes the output voltage down to a constant voltage 1R
For example, with a commercially available regulator IC, the reverse current is cut off using a diode to prevent 19 interference, and the diode circuit collects the IR processing of each stabilized power supply circuit and supplies power to the common load. are doing.

In this system, the power supply device is 41.8'M2,
A plurality of gfMn units are used, and the power supply unit fllWM1.

Fake 12. Even if one of WMr& breaks down, the system will not go down.

Also, the more power supplies are used, the more efficient they are @I5! Configure a power supply circuit.

As described above, the uninvented DC power supply circuit has one obvious feature compared to the conventional circuit shown in Fig. 1, which is an extremely economical first-current power supply that requires two fewer DC power supplies (4% + 12>'). The circuit can be provided.

[Brief explanation of the drawing]

Fig. 1 is a block diagram for explaining a conventional DC power supply circuit, and Fig. 2 is a block diagram showing the configuration of a DC power supply circuit to which a diode shunt circuit is added via a stabilized power supply circuit according to the invention. be. 1... DC power supply device 2... Load segmentation device 3... Load common device 4... 11k i Warp prevention diode 5...
Stabilized power supply circuit

Claims (1)

[Claims] Common equipment that makes up the system and other individual equipment and
In a DC power supply circuit that supplies a second source using a plurality of power supplies, a part of the output of each power supply that outputs a different voltage is supplied to an individual load device corresponding to each power supply 1rVc. and the remaining output of the power supply t
An IrtAt, l source supply circuit characterized in that a diode OR circuit via a stabilized power supply circuit collects each power supply unit ↓ and supplies the common load device fllIVr-.