JPS58133169A - Dc power source device - Google Patents

Abstract

PURPOSE:To reduce the distortion of an input, by extracting one output from each of three sets of high-frequency conversion circuits, by composing the same in series, and by subjecting it to all-wave rectification and smoothing. CONSTITUTION:When three-phase power sources e1, e2 and e3 are inputted, output voltages v1, v2 and v3 of high-frequency conversion circuits 1, 2 and 3 are synchronized by a synchronous signal of a synchronization circuit 5 respectively, and the peak values of these voltages are made proportional to the absolute values of instantaneous values of the power sources e1, e2 and e3. Accordingly, a composite output voltage vout obtained by composing theses output voltages v1, v2 and v3 in series is a high-frequency voltage having a peak value of a prescribed level. This composite output voltage vout is subjected to all-wave rectification by a rectifying-smoothing circuit 4 to be converted into a smooth direct current. By this constitution, each output is supplied to a load without discontinuation, and thereby distortion and the like can be reduced.

Description

[Detailed description of the invention] The present invention relates to a Naoshin Kamei device.

Recent technological innovations in electronics packaging have been spectacular, with power control techniques using Hower transistors and thyristors rapidly becoming carbonized.
J1 is the electronicization of lighting circuits in the lighting field.
JrarLru. Since the oil shock, Jakuden Kanies↓ri,
As a highly efficient lighting method, Kkiz~40KHi
The so-called harmonic lighting method, which uses an inverter to control lighting in two loops, is seen as promising.

Lately, I have been seeing a lot of developments with various companies in the form of blocks.

Another example is the recent strengthening of the lii rust of labor saving and automation.
, 19 general-purpose inverters for speed control of electric motors,
In industry, aggressive efforts are being made towards automation.

In such a situation, AC/DC converter circuits that are indispensable for DC power supplies, especially those used in commercial power supply systems, are considered to be one of the most popular elements in the power control field. As a result of the increased frequency, there are radio wave disturbances due to switch-based control, burnout of power factor correction capacitors, reduced efficiency of electric power company transformers, induction disturbances, etc.

1% - less wave component, i.e. input voltage fL (voltage insect)
's little father @tIm! ! circuit is required.

Now, conventionally, when using a three-phase electrical appliance to control the speed of an induction motor or perform AJid wave lighting or interrogation of a discharge lamp, or as a direct conversion circuit, a three-phase full wave as shown in the first example is used. Rectification is not used. In this circuit, in the second V) operating state, the voltage must be '1' during the half cycle of the l phase, like a bore. /3 times, the period in which the input terminal does not flow occurs in the 1st phase of 4eI.
This is because the input terminal tIL is inactive during the period -t9, and +Lm-ta1, since the current flows during the period when the diode D or C' is on. Therefore, this idle period naturally distorts the input radio waves (voltage) and causes the various problems mentioned above.In addition, on the load shaft, electronic devices such as Twiristors use switching. In the case of power control, there is no doubt that this will become a major problem. In this way, my father thi at the 3-phase Zenpa Seien! I! When using a circuit to control power, yc is a 1-input terminal that, in principle, can run from a larger fist to a smaller size.
It is easy to obtain yc+clean direct current σ/:
) Also, it is inevitable that the method will be changed.

06, which shows the basic '#I# failure diagram as the third factor, is a 3-phase power supply, synchronized with the synchronization signal of the 1mm J period circuit 5 at 1°2.3, and the 3-phase turtle k
k is a high frequency conversion circuit which insulates human power/output as human power; 4 is a rectification/smoothing circuit which serially combines the outputs of the high frequency conversion circuits 1, 2, and 3 to form a high wave voltage t, rectification m, and smoothing.

Figure 4 shows a concrete circuit. High frequency conversion circuit l.

2, 3fl, 0 synchronous cycle [5 is input power supply t1if
It is a push-pull self-supporting inverter with a constant output level of 1.2.3 as an i power supply, and the oscillation inductance is a high-frequency conversion tg1N for the four-law bias,
Harney, magnetically coupled and wound oMt &...
After passing the full wave li to the smoothing circuit 4, it is smoothed by a capacitor and then sent to the 0 synchronization circuit 5 using the 0-synchronous circuit 5.
When it is turned on, 1 self-excited oscillation occurs, and the synchronous bias coil koji Eiro,
)・-2, the self-wJ oscillation frequency that the first-term circuit 5 has! , (thoracic period T'@) sine wave voltage vb is gradually generated as shown in Fig. 5. Now, this Vb is a high-resolution wave change! llI1gII
Input to i1511, 2.3, DC bias voltage #A &
, &, when Es is input, when vb is positive, Qh-Qs-
Qs is on, Qa-QI.

When false enters the off state and p and vb turn negative, vice versa.

When ql, ql, QI is off, Q+QatQa turns off, and in synchronization with the 50th excitation output of the same MI, transistors Q+, Qs, Qs and Q spirit, Q,, Q-
Or alternate Ic on/off tap return. By making this restful movement, human power 3ψ turtle - ell・yuki + emk human power is %
Output voltage 1f+-1t* of Tame Frequency Arashikyo Circuit 1, 2.3,
Vs is the same as Mρ・(l, Fig. 5 1/'i+υm+'If
A fist that holds a bore waveform in m?'cl=, bocn et al.'s beak*1/'+-p+1ft-p+17J-p-yosel
161 + 63 is a loquat 5 of - compared to a turtle - low J! If you compare it with +ItIL, you can see something similar to the 6th evil. Therefore V. uj=17+10 in the snow
? I6 Peng wave voltage wave voltage s#IIJ7 factor shows 7'j [cedar becomes 0 This 1j6utt Serving (1 OC like VC%1I11 Chestsaka quality chivalry times Ayu 1, 2.3 output t
] Tari Zeng makes rL, Tani output is resting without fist, negative what W
(There is no longer a pause period for the human-powered current that occurs when the vessel is empty, so distortions, etc. can be reduced to a smaller size.

1.2 in the O broken frame showing the G1 embodiment of the present invention in FIG.
The circuit block 3 is a high frequency conversion circuit, except for the power supply S.
The circuit specifications are almost the same.

When using the 1147 TPU inverter, only the synchronous circuit 5 constitutes a self-excited inverter system.In other words, the oscillating voltage generated between the oscillation winding 11nl*n and the capacitor is the electromotive voltage vd of the transistor Q+-Qj. Therefore, the synchronous circuit 5 has jI
When the flLt source E*-Et is turned on, nrt self-oscillates,
Sinusoidal high-frequency voltages Va, vb, and Vc are generated in the same direction as the VCO between the winding A and the opening, /″-, 2, and E, respectively.
Since it is applied to the pace resistor WI@ terminal of the switch transistor in 2.3, b'L/"6o or positive (17a, Hib+Vc
is stopped), transistor Qa, Q@=Q is on, Q
m+Qs, Q= is forced to turn off state 0 or %17
Conversely, when c0 is negative, Qs=Qs, Qv or on-Qa-
Q-, QS turns to 4K, which turns off, and in synchronization with the IW1 period circuit 50 self-oscillation #IIJjiiI period, i%ji
The +1 conversion circuit 1.2.3 operates in a 9-switch operation, and outputs T, , T, , T.

A periodic oscillating voltage is generated and becomes ◆.

ε, now the input terminal is 3ψ and the 9th
Electricity ratio e++em+6sF1 for 61m to create a bad Kyr
""3 phase loss n, and island Jtd wave conversion circuit 1,
2.3 output transformer primary @1m voltage M+, M! ,V
Like the 9th sty, the waveform is WC2 by /3 and the envelope is blurred. Therefore, the output winding string of the output cadence T, -2- is in the form of an 8th digit, and if there are a number of digits, the output is also divided Gn, for example, the output of the output cadence T, is as follows:
The voltages of V, , and Vlt are heated by 1IIA. If you consider this size as a secondary winding (C engineering 9 determination, -'- specification), 1/'11 and VHt will be approximately equal, and the secondary winding will not be separated. The output (υ2. compared to C is approximately 1/2 the same as that of the single output type. The second Vout is also yt+clear as shown in Figure 7, which is l/2 compared to the single output type.
The smoothed DC voltage ■D is 1/2
Therefore, it can be used by two companies as a semi-inverter, and since the non-invention is covered in the above-mentioned works, an independent atIL control source is required for each load (for example, an inverter). It is possible to control the power of the load individually. In addition, it becomes easy to supply I&FI equipment that requires isolation, which often causes malfunctions due to noise between devices.Furthermore, it has the effect of reducing input distortion.

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the operation of the amt power supply device, and Fig. 3 is a basic block diagram of the i[It power supply device]. The fourth evil is the concrete circuit, the 51st vb, t7+-υ*gIf
B, Figure 6 atrVr+611rV snow e111m+17
s*7th- is an operation a+ diagram, FIG. 8 is an uninvented embodiment, and FIG. 9 is an explanatory diagram of the operation. 1.2, 3...High frequency conversion-path, 4...
- Rectifier and smoothing circuit, 5... Synchronous (b) path, 6...
・・・・Father flow electric power −T+～T1・・・・Excavation transformer %Q,～Q−・・・・Transistor, E@, EH
・・・・・・1ILflLIIE Source Figure 1 Figure 2 Figure 3 Figure 4-1 Figure 5 Figure 7 Figure 8

Claims (1)

[Claims] % tightening turtle pressure kq of 3-phase electric wire and ^11 distribution wire! r input, 1 is the same circuit specification t%, human output is isolated tL
, and the number of outputs is multiple.9, the outputs of each other are also sandwiched between 3 sets of high frequency variable circuits, and one output of the above-mentioned high frequency wave converter circuit, and the Lv of each group is extracted. It is characterized by a fist equipped with n sets of full-wave rectification/10m circuits that are synthesized, total, rounded, and smoothed, and a l''J-phase circuit that operates in synchronization with the front high chest wave conversion circuit. Nao-Ku-Kame-Gatetsu tIIL.