JPS5949198A - Power source for strobe - 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] Kimoto Invention, Strobe Power Supply System -)! The present invention particularly relates to a power supply device for efficiently charging 1R to a large strobe 7', 6.

As is well known, general strobes are designed to be nJ portable so that they can be used for flash photography outdoors, etc., and the connected power battery, which is not stored in the strobe, is used as the operating power source. In addition, the electromotive voltage e of the power supply battery is low voltage, and an intermediate membrane is used to charge the main capacitor to a high voltage.

Figure 1 shows an example of a conventional strobe power source device. A power supply 14., a power switch SW1 connected in series to the DC power supply 1, and a DC-DC converter that automatically oscillates when the power switch SW1 is opened to boost the low voltage for the DC power supply to a high voltage. I) It was composed of CCo. J)C-1)C converter 1,) CCo includes a voltage transformer T1 having a primary winding P and a secondary winding S, and one end of the secondary winding 8 of this voltage step-up transformer T. Connect to PaceNo1. A PNP type feedback transistor Q, an NPN main transistor Q2 whose base is connected to the base of the feedback transistor Q through a resistor R, and a 1'ti) E return! employment transistor Q,
The resistor inserted between the base of and the f1 of the DC power supply E,
The anode is connected to the other end of the next winding S 1; Includes 1 bar 1+
, ((?jr, 1st diode J) 1. +1 return F, l Ill emitter of transistor Q, r, i, From the positive terminal of the above-mentioned 11K switch S Wl, the common earthsula drawn out from -C is connected to the in e., and also - the emitter of the trigger transformer Q, t, 1.1° DC. One tb7 source is connected to the negative terminal of j) 5. Furthermore, 1-note! '1. Primary winding P of HE triy, x'v, (7) -rut ljl: iii'+both i+T+,
T = -, r.

The other end 3' is connected to the line lo, and to the co1/coctor of the main transistor Q, respectively.

Then, the working force, the pressure supply line 11, which is drawn out from the cathode of the rectifier diode 1), and the common ground line 1. A main capacitor CM is connected between the two and a flash circuit FIG is connected to the main capacitor CM. This flash light emitting circuit F
IC, charges the main capacitor CM, which has been charged to a high voltage by the above-mentioned 'Kamegen darkness', and the flash discharge tube P.
5. Fludge for photo frame shape by flashing and flashing through L. A circuit that generates light 1:j r, etc.), and a trigger innovoo SVV, , ) rigacon y'
trigger transformer C1, trigger transformer I1. Flash discharge tube Fl・
CZ, which is composed of 4th grade. Beating, 1-orientation line 4. , e.

V711 in the concave, resistor R,,, light available, complete rock te, series circuit of FTI neon lamp Net, resistor It,...
]5 There is a continuation of IW, and 1., the resistance l
(, 4 and trigger innobu SW, contact Fi point 1c
rJ, one end of the trigger capacitor (1) is connected to °C.The other end of the trigger capacitor (1) is connected to the trigger transformer
1. Connect to one end of the primary winding of 1 and 2. U], I'm here. In addition to the primary winding of the trigger transformer 'v, I/: "A F,'
b, line l. 1 is connected to the transformer 1, and also connected to one end of the secondary winding of the transformer 1, and the other end of the winding is connected to the trigger electrode FL,a of the flash discharge tube FL. At the same time, I'm in the middle of the day.

In the conventional 7 strobe power supply device with the above configuration -y:I+, when the power switch SW is closed, the power supply pressure of the DC power supply Iu causes the return transistor Q
Current flows through the emitter-base of 1 and the resistor it, r, and the transistor Q turns on. Then, the collector current of transistor Q1 starts to flow into the base of the main transistor through resistor 1 (, 1),
When the main transistor (also turns on), the transistor Q! turns on, the collector current of the transistor Q flows as the primary winding current through the step-up transformer T, the primary winding High voltage induced type in winding S,
LE occurs. In response to this induced pressure, a positive feedback current b16 flows between the emitter and base of the transistor Q, through the rectifying diode I), the main capacitor CM, and the Riga capacitor CI, etc. The base current of transistor Q increases. Therefore, the collector current of the transistor Qi, that is, the base current of the transistor Q, also increases, and the collector current of the transistor Q, that is, the primary winding current increases to 91.

The rate of increase begins to decline. Then, the induced vlt pressure in the secondary winding S also begins to decrease, and the base voltage of the transistor Q,
As the current increases to j1/J, the current at the transistor Q begins to decrease to . The collector current of the etrange;-ta Q, that is, the primary winding π! The current decreases and begins to pass through the secondary winding S K p, as described above.1.1 A back emf Ill pressure in the opposite direction is generated, and this Ill is applied to the base of the transistor Q. ．． 2. . Therefore, the base current of transistor (i) decreases, and the collector current of transistor (c) decreases, resulting in
Two records of back-up 'ljT, pressure rises to the transistor (published by Stone)
do. When transistor QI turns off, transistor Q
, are also turned off, the primary winding current no longer flows, and the back electromotive pressure that was occurring in the secondary winding S is no longer generated. Therefore, the lightning source device 1η returns to the state at the moment when the power supply swing SW is closed, repeats the above-mentioned operation, and automatically opens]σ.

When self-sustained oscillation is performed in this way, the step-up transformer T and the secondary winding SK are induced. Due to the high induced voltage, the rectifier diode D and main capacitor CM
,,) The positive feedback current flows through the trigger capacitor C2, etc., and the main capacitor CM and the trigger capacitor C1
Charging takes place. The main condenser ＼ Tsukobe ＼ Tsuka ＼ ＼ Kohe ＼ Loss ＼ ＼ Kukuza CM, charging 181 electric city 1 voltage discharges surface light discharge tube FJ 1R (Vll), 4. ．． 1. When the IJ voltage reaches a constant voltage, the charge completion display indicator Nez lights up, indicating that closed light emission is possible. After this, when the trigger switches S~■ are closed in synchronization with the opening IC of the camera shutter, tff is output to the trigger capacitor CI.
r is released through the primary winding of trigger transformer T2'1(τ
, which generates a high trigger voltage in the secondary winding of the transformer 71+. Then, this trigger voltage is the trigger voltage of the flash discharge tube Fl, , Q i' I),
A is applied to the flash discharge tube FL which is in the conduction state Jtl, and the charged charge of the main capacitor CM1 flows through the flash discharge tube JJ1, causing the flash discharge tube FL to discharge and emit light.

By the way, a large portable strobe used for press broadcasting and shadows, etc., was designed so that a large guide number could be obtained. In order to quickly charge the 1:1 main capacitor to 1. Since it had the circuit configuration shown in FIG. 1 above, it had several drawbacks as mentioned above.

(1) 'il! , 'Source Vl? , filα also outputs a large current - Jr, m: Ike's discharge TI? 5 Ki′ is:”r
I-+ <Decrease! 7.l! ! j pond i ■ effect 41011
There was a drawback that there were no ■1 and 11.

Figure 2 3, 1, Discharge in nickel cadmium battery 5
Do you want to release the first one? Master h1. It shows the entire graph of the changes in the rate of
．． It is shown that as the current increases, the discharge capacity h) decreases. In Figure 1, the magnitude of the discharge n1 flow is shown completely, 11, the nominal capacity (1 hour rate)
This means 7, and the case where a nickel cadmium battery of 500 rnA b is continuously discharged at a current of 50 rnA is called 1,1C discharge 1, and in this case several boxes; The expression is 100 (chi) and fixed rou)!S7)
. According to example λ-ba, 2. OC (l:Lt,,t,, represents the case where the current of two times the nominal current (1 hour: g) is discharged, 1 time. Figure 2 shows that the discharge current is When removing the battery, the value of the air volume M compared with the case of 0.ICCr2O is the value of the discharge vessel (chi).
It is shown as.

As can be seen from Fig. 2, the discharge 171 current is s
, oCt7) and t > K tit discharge capacity Yl l'j,
'0. IC's pano decreased to just under 80%, 4. O
At C, it drops to over 70%. Conventional power supplies for large strobes are used with a discharge current of 10 to 20C, so the discharge current is 0. IC release'+1? In the case of , only a released Ml volume of less than A).1 was obtained, and the utilization efficiency of the TR source ill pond was significantly reduced. In the power supply device of a large strobe, the discharge current of the power supply battery is 10 to 20C because the main capacitor is connected to the optical IFL with a large current in order to shorten the charging time fH8-f.J)C-1 ) This is because the current flowing through the primary example of the C converter also increases accordingly. Power source 1: The thicker the discharge current in the pond, the longer the duration of the discharge, the lower the discharge Wfa: is. This is because the utilization rate of the active material decreases and internal loss increases.

(2) The power supply device has become larger as a whole5, which has the disadvantage of impairing portability of the portable strobe.

A conventional power supply device for a large strobe has, for example, a circuit configuration as shown in FIG.

Capacity of main capacitor CM charged by each circuit component nt
A large one commensurate with Vc was used. ,especially,
Main transistors Q and Fi for oscillation, and pressure transformer'■
Because the primary winding current of 1 flows through the primary winding, a large-capacity one was used, and a large heat sink was attached to increase the amount of heat generated during self-oscillation. Furthermore, in order to avoid the influence of heat generated from this main transistor Q, it was necessary to secure a certain amount of heat dissipation space between it and the peripheral circuitry when it was mounted.

In addition, conventional large strobe units, source devices, and generally 1
It operates with a WL source voltage of 2V (1.5V x 8), which is compared to the 6V (6V) power supply voltage of a normal small strobe.
t5Vx 4), the operating voltage is double that of f, r, and so on.

Therefore, with this increase in operating voltage, l) C-1)
A large current is about to flow into the primary side of the C converter, but unless this current is suppressed to some extent, the main transistor Q!
There was a risk that the heat generated by the system would become too large, or that the load on the power source or pond would become too much, leading to a decrease in efficiency. Therefore, in the conventional power supply device for a large strobe, the number of turns of the primary winding P of the step-up transformer T is increased by +1. By increasing the number of turns of the secondary winding 8 through
r: Efforts were made to avoid reducing efficiency. For this reason, the step-up transformer '1'1 has become larger, and the step-up transformer '1'1 has also become larger. lJy, (: It was.

In view of the above-mentioned points, an object of the present invention is to provide a plurality of J)C-])C converters in parallel that operate with the same DC 1τL source, and to connect each J)C-])]CC converter To provide a 1U power supply device for a strobe, which is operated to charge a main capacitor (Z).

The present invention is a book that focuses on the fact that when the discharge fJ, 'nr, and current of a power supply battery is reduced, the discharge capacity increases.
) C-1) Each D
C-]) This is intended to reduce the load on the power supply battery in the C converter, and to make it possible to fully draw out the discharge capacity FIL of each -C1 power supply battery.

! 1) By reducing the operating voltage and operating current of the C-DC converter to a low T, each J
,) C-1) Miniaturize the circuit 7% of the C converter, and overall miniaturize the R1 original device for strobes.
Hereinafter, the present invention will be explained based on an example of a case shown in IN<l.

FIG. 3 shows one embodiment of the present invention: for strobe pressure,
The electrical circuit of the device is constructed. Wood example power supply device i'Ck, t, Q 3 ノ;! ! Nick Lucadmiu J, Kelly said that all 16 batteries are used, 14 of these 16 batteries are connected in series, 4 of them are connected in series, ≧Σ, 1 source of 4 DC air. Ta1l+
1>,, +1'j31 and r bow 41 ``5・respectively form.And?'r trj Mr,
? 17. Source Ru! F3z+ + Eg+ OJ:bi+';41 , converter +) CC, ~1. I
ce.

The source of each movement is /,!,.'I!,'Q 1)e-J)C:* Soba-1
1-) C', C, ~J) CC, ItJ-1 common ゛Earth line t3+. Converter 1) CC1~D with c4K
The power switch SW, which is inserted between the pair and the operating voltage supply line /H, can be turned on and off at the same time, or can be started or stopped at the same time. It's meant to be sipped.

Above 1) C-]) C converter l) CC, ~1) C
(Qll, converter DCC, as an example.External transformer T, I, PNP type feedback transistor (λ, l, NPN main transistor
+2+Qu and 41 (anti-it, , ~It, , TI
Main mainstream 5-beam condenser C12 and rectifier TIO-1・”'1
It consists of 1. The above transformer for external use T, 7:j
1. One end of the primary winding P is connected to the ground line 11o,
1^ is connected to the collector of the main transistor Q+t + Q10, one end of the secondary winding S is connected to the base of the feedback transistor Q+ +'D, and the other end is connected to the rectifier diode D. , , , respectively.The feedback transistor Q11 has its emitter connected to line g+2 and its collector connected to the bases of resistors IL++t1+n, respectively In addition, the base is connected to the resistor R1,
It is connected to the negative pole of the DC power supply l through 111, and is also connected to line eI* through a capacitor CU. The main transistor QIt tQu k, the emitter is a direct current source. is connected to the negative terminal of yt, and the base
There is a resistor R between the emitters. , , are inserted. -12 Notes 1 [[Condenser Co for current superposition, DC lightning, source T'J
l! and line 412. =
! In addition, the cathode of the rectifier tie 1-0 is connected to the operating voltage supply line lo to the main capacitor CM.

In addition, 1111]) C-1. ) C Conno (-
E1) C (shi, ~ vcc, ti, the above converter I) C
Since it is configured exactly the same as C+, corresponding parts have il. , 10, 20.30 are added and the ft symbol is added, and the detailed explanation of -7 is omitted to '5C string.

′! f. In addition, the main capacitor CM, and the flash light emitting circuit F
ICn is line ZII+N+. is connected between
The flash light emitting circuit FIC, , is configured, for example, as a child Km of the flash light emitting circuit FIC shown in FIG. 1 above.

As described above, the strobe power supply device of this embodiment is configured.

Next, the operation of this strobe power supply device will be explained.

1': When the source switch SW,
) CC, ~1) CC4K ff1l+made f1? .

Pressure does not change, 7n', IQ k n +: L stop '1 shift °C IZ). Next, 111 source switch 5W1
1, the fin 712 is connected to the ground line lI0 of the iFI.・de＾・1]
Name 1) C-1) C converter 1. ) CC,~D
CC.
CC, ~1) CC4r,l, start operation7),, each D
C-DCC complete set - 1) CC, -T) CC, 1 1 of transistor Qu -', mitter base and resistor 1'+2'4
A current flows through the transistor Qu, turning on the transistor Qu7).

In addition, at the same time as the coil, the lightning first class M tatami condenser CII
The light quality is 5ir, the current is J+, and the same capacitor C,,
&yo line eI! If the wire is positive, then l, -(l', type).

When transistor Q++ turns on 1-, transistor Q
, 2° QCs are turned on, and the sum of the DC 1:I, the 11 current flowing from the source 1, the 111 current due to the current and the charged charge of the capacitor Co flows through the primary winding mP of the step-up transformer T, l. )1. Ru. This primary winding 1st flow [11, conventional '1. 1. When configured with transistors etc. -The first-order yen gland stomach "(It is 11 times as much as 1 shi, but this transistor Q + 2 + Q + * is 111 Tali name - 2
1 solid 1 juice, it's hard, so Ko 1/Kuta'11 style) 1 giant (1fj over S, main transistor Q + 2 +
QCs is destroyed By setting i゛, the primary winding current is large, +tt': r, the secondary winding current increases. It is possible to shorten the distance between l1ij and l1ij.

Ascent+1E li+Tonnos 1゛1. 1st volume 11,
When 21ij Ml flows, the secondary blue line SK pressure of the same l, U/S Ill, "1re FE" is generated, and the main capacitor 0M2 etc.
The flow? “+if, the primary winding current is +Q +Q plus a certain amount of Jl?, then -C11 the primary winding current is added to a certain amount Jl?, and once it starts to decrease, the secondary winding S 2) The back electromotive voltage generated in
When "J" is applied to the transistor QII, the same transistor QII is turned off. At this time, the back electromotive force generated in the secondary winding S is buffered by the capacitor CnVc, thereby preventing the transistor Q++ from being destroyed. When the transistor Ql+ is turned off, the main transistor QCs is turned off, and the primary winding current flows (therefore, no back electromotive force is generated in the secondary winding S. Therefore, DC-T) C converter I )
CC returns to the state at the moment of closing 〒+t, jla suite 7 S VV, , and repeats the above-mentioned operation to automatically oscillate.

other I) C= J) C converter D CC, ~I)
(-:C, also self-oscillates like the above converter I) CC, but when these self-oscillate, the rectifier diode l), , D2. .

I) Main condenry CM2 through s+ and D41
The above positive feedback current flows to charge the capacitor CM. In addition, each 1) C-1) C converter D
CC, ~1) If the phase of CC4 oscillation is shifted,
Rectifier diode D, , D, , T)3. And due to the reverse IL action of D4I, each converter J)C
There is no possibility that circulating current will flow between C and IJCC4.

According to the strobe power supply device of this embodiment, the charging current to the main capacitor CM is shared by the four I) C-DC converters D CC, to I) CC, so that
The negative of each converter D Cc , ~DCC, is -4BH. In a strobe power supply, the charging current gradually decreases as the main capacitor is charged. In the conventional apparatus shown in FIG. 1, the average value of the current is approximately 5 to 10 CK for t, but in the apparatus of this embodiment, it is approximately 1.3 to 2.5 CK for r. Discharge electric juice of both.

Comparing the discharge capacity of
The latter will be 70-80% 81 degrees. Therefore, the conventional device and the device of this embodiment use a power supply of i17+1 and the same capacity -H.
``Even if one pond is used, there will be more than twice the difference in the number of times the cells emit light.

No. 4-1 shows an electric circuit diagram of a strobe power supply device showing another embodiment of the present invention. The H source device of this embodiment uses 20 AA size nickel cadmium batteries, and these 20 batteries are connected in series, four each, to provide five DC ↑■ sources Eo, Js, 1. E, E, 1 and E, , i are formed respectively. And each DC type source Wll + Et + T EA,
I E41 and N, C, five T with the same configuration
,N Sof1-Tremit #tt, each converter 1) CCu~DCCI,f, each driving operation '1 near, source and Z). Upper Wi2 D CI) C:t
y HapI)CO,, ~I)C(',,, r,ll
, l2We 2113 The J)C-1)C converter 1. ) CC, ~1. )C
Almost the same as C4 (II7 is made, so the corresponding parts are attached, the same - 1) is added, and the number 40 is added to the code of 1111 products corresponding to CC1 (vJ, converter T). The li'? t7 I will omit the details, but when the main capacitors CM, CM, 2 are charged to the specified voltage, each 1)C-1)Ccoy bar pL)C:C,, ~DCC1B +7) Switching transistor QI for stopping operation
41 Qt4 + Q34 + Q44 Oyobi Q84
, ilk □' lty, resistor R14.

nl, ; R, 4, sharp; R・34 HR35: I
l+44 , 1 too,, ↓ and I<,, 4. I is also different in that it is provided. In addition, rectifier diodes D, , , I), , ; D, , , D, , ;
Ds, , D,2; N4. , N4. The difference is that , , , and D are arranged in series.

The above switching transistor Q+4 + Qt< +
Q114 + Q44 and Q2. are formed of N-type transistors, whose collectors are connected to the operating voltage 1 (supply line).

, the emitter is raised to the LU transformer T! 1 + 'I'!
+ + 1'*I 1 'I 41 and 2 of 11,1
-A of the next winding S, 1.・I've been attacking 7 times in a row. Transistor Q14 + 'Si24! Qs4+
Q44 T and '4 < total -7, tJ:, resistance '1
4 + ""241 "'84 + "'44 and turtle.

ll((I'm jealous of myself) 1 Park's continued power, as well as resistance I + "t*s T*
+ R'4! l and 几1. Each end of the charging indicator neon lamp Nc++ is connected through the charging terminal. sk, r, > e −
L) c converter p IJcc, 〜DCC,,(
7) IN) J D: i, 1 and z) Rectification) [1 diode "+2 + ') 22 + N! The cathodes of 1) 42 and 1) 5. are connected to each other, so that the voltage A diode D1.ll is connected to one end of the detection sensor Cs+.

1), 2 through the capacitor CM, , at one end of the diode 1) 11. the other main capacitor CM, through.

At one end of the sled, it is connected.

The charging voltage raising capacitors C and Il have their other ends connected to the common ground line Ij16, and main capacitors CM, , CM, , whose other ends are connected to the line Nun through the display circuit DEC. It is designed to be charged to the same voltage as. A voltage divider circuit consisting of a series circuit of (:L% resistor 1LI11 + 几.) is connected in parallel to this = 1 nden・s°C11l, and both resistors l(・e+ 11
At the connection point of Lu, the above neon lamp Ne11 and many others are connected.
is connected. , -7ndenza C11 charge '+'!
i', 'I + pressure t' resistance ''fil + ''6
When the voltage divided by 2 and applied to the resistor n, 2 exceeds the light emission start +lT of the neon rung pJc++, the charge that was noticeably present in the capacitor C□ is transferred to the resistor l.
．． The neon rung Ne1t is i [II, so the switching transistor QI4 + Q44 + Qt4 T
Flowing into the base of Q44 and Q, 4', the name is:
/transistor Q141 Qta t Qt4 + Q44 and QB4 each turn on J1, and the transistor Qo + QtI + Qta + Q41 and QtlI turn off, respectively. Therefore, l) (+-1
)C converter 1. )CCn~DCCI8t operation stopped!
I will do it. Each side of the capacitor Ca+ is set to be extremely small compared to the capacitance of the main capacitors CMu and CM+2, and therefore the capacitors C, , I-1 are immediately discharged, and the Mf, L, and t-men lamps Next are turned off. Started operation again by 1-I) C-DC converter I) C
C,,~1) It will be charged again by CC, . In this way, the capacitor y06I tit charging/discharging f cycle; neon lamp Ne, , ) transistor Q
! 4 + Qt4 + Qt4 t Q44 and Q,
In cooperation with 4 Kasa, the main capacitor CMII I 0M+1
The charging type F'E is 1 [layer, fixed, pressure]
One.

11iJ + operation j' (ttj KA switch 5 between the IE supply line l!t and the common ground line a8.
WII is provided. This city, source switch 8W,
, r, t, are formed by changeover switches, and the movable contact terminal C is line e,. It is connected to the -1000 fixed terminal A Fat, →in β, 2. Therefore, when the movable contact piece is switched to the fixed terminal A, the switch S
Line L, across W,. ,e,! are connected,
Each 1) C-D C converter 1) C (crystal ~ 1) CCI
An operating voltage is supplied to I+. Also, switch SW
, , the other fixed terminal) 3 rt, , - 10,000 light emission control circuit ICC.

, and when the movable contact piece is switched to the fixed terminal B, each DC-DC converter J)CCu~l)
Pressure is no longer supplied to C'C, and the operation is stopped.At the same time, the light emission control circuit ICC,K light emission prevention signal is manually input, and the flash light γ1 is emitted from the tube F Lll +.
The light emission of F I'+1 is N1. It will be in a +1 state.

The above power supply S/F border 3 W, (, well, the other 'i' J, R switches 8 W, which are also formed by the OFF 1 switch)
,,Kfr,-) to do 111 consecutively. This trr, source 7. I, l/fSVJ,, /7. )
T+f III) Contact piece terminal C, 41;
The negative electrode of 1°1j "-1'·081" is connected to the contact point. Also, 111. source switch SW,
The other fixed connector B of 2 is connected to the free connector y, (connected.
1, resistor H,, 8, through the diode]), 4
r node, diode D8. anode and Jl
(Resistance 1 (・0. is connected to one end of each,
The cathodes of iodes 1) and 4 are connected to the anode 1 of teriod 1]62, and the cathodes of iodes 1) and 4 are connected to the anode 1 of teriode 1) and ionide 4). , the cathode e of the diode 1. ), , J), the anode of l, and the other end of the resistor It,, the line /l+sK respectively drawn out from the other end of the main capacitor "II+CM,".

It is connected. Further, the common ground contact of the external power supply terminal O8'l' is connected to the line 6+s. Therefore, if an external power supply such as a laminated 1×1λ, etc. is connected to the external power supply terminal O8T, and the 1rt source switch SW, , is switched to the fixed terminal A, the main capacitor (M, , ,
crt+,.

Q:1. Evening) Part Rai, Gen 7'+1, etc. also fr so that R, 'Wi, goes to line 7j.

” The Lord of Jj “Ndenri CM,” both ＼H:2
(KaC) Go to the drawer, move 1! 1 River, IL, pay in j'! 'n l ' Between the IS (・11, -・ side light emitting fl + control circuit JCC, connection type j +, '7T tr
Between the line 41 and this light emission control circuit I CC, 14
: il, coil ■・,.

Diode D, 13 parallel circuits and one flash) Y, lightning 1
A series circuit with 17F L I + is connected to 115 wires. , 1111 The operating air drawn out from both ends of the main capacitor CM, pressure 1 (supply line lln +
4s between &, j-1 Senman's departure) Y; A four control circuit IO
C, is connected, line /I+ and this output) °C2! lll (t between i41 circuit ICC2, (, coil L
2. The first column circuit of the diode Du and the other flash') Y,
If-column circuits of dispersed single-tube 1'L, . . . I= are connected. In addition, the flash emission 1, the trigger lightning of the tubes FLH and PL, I, the poles FL112 and F It 1p a f
1, -1-il are connected to one of the emission control circuits ICC, and flash based on the output of the same circuit IOC.

Further, a series circuit of M anti-ILes + Rs4 and a dest source trigger switch SW is connected in parallel with one of the main capacitors CM, , J,': ttG. In addition, the trigger switch 5WI8 has C" and resistance. ,
are connected in parallel, and the resistor I (1, 1, 8W, 3) is connected to the light emitting side and the 111 circuit CC, and the diode D6. J
> and the leg contacts CCV, J, - and connector CC'l' for connecting the camera, and the 1. It's M! :Continued. Therefore, the control circuit ICC is triggered by a signal from the camera or the closing of the switch "SW" to emit a flash of light.
Starts z's flash of light.

This is a circuit for indicating charging completion and self-TOb dimming in the display circuit DSC, flash or camera, and the shield lines f, jfl as well as -
leg contact CCS and connector CC'J' +
f are connected respectively. In addition, this circuit Dse, 1
．． t, and a light emission control circuit ICE.

Additionally, a photometric circuit PMC is connected between the lines 4+1+713 (VCI) 7). This photometric circuit P M
Photoelectric conversion element 1゜T is connected to C, t, measurement)
\1t- [The same circuit PMC, p) °C electric conversion element 1
) 7r,, the light weight that occurs.

The light emission control circuit I
CC,, J CC, automatically outputs an illumination signal]. ShiriK has become. 'i! , the above leg contact CCS
, ma fr, l ma connector c c T, the camera understands (reduce n, and based on this, light emission control
111 circuit I CCr + I L C2 automatic adjustment)
It is designed to output an L signal.

The strobe heavy source device nail of this embodiment is constructed as described above, and this power supply device also operates in substantially the same manner as the power supply device of the embodiment shown in FIG. 3 above.

In other words, set the power switch SW, 5? ! , Homura A gani-kiri I@sho-2), and operation 11 is connected to the pressure supply line fl,
2 each through 1) C-DC converter OCC,,~D(
'l'C,, DC power supply E,,,E□.

The operating voltage is supplied from gq, l Jim, , and E, 1), and the converters I) CC,, -DCC, start operating. However, in the power supply device of this embodiment, when the charging period of the main capacitors CM
u + Q24 + Qsa! Q4< and Q, 4
turns on, and the I)C-1)C converter 1)CC.

The operation of ~DCC,, is suspended.

In addition, regarding the jNj appearance τ゛zK connection J and one rib of the flashlight emitting circuit in this embodiment, υ
Since there is no F, I will omit the detailed explanation on the string.

FIG. 5V is shown in #lT 4v1 above. -1i71+ in the 11L source equipment ft7H of Example 16 and the conventional θ month if, tri equipment U1 shown in Fig. 1 of the upper H1 unit.
The graph shows a comparison of 7 times (target and light emitting circuit 6 times) and 11 sentences. In this figure, the graph of two-dot chain line indicated by rl' l: + (A) is the product device σ)'lr characteristic diagram of this embodiment, and the symbols (3rd), (C), (])) It is a characteristic diagram of the power supply device of the conventional example of the graph shown. As mentioned above, the γ field in the space (f'J @li!j) of this embodiment is formed by the AA nickel cadmium battery 20. In contrast, in the conventional example (ri) The power supply in the power supply device is formed by eight shore-type alkaline ponds (equivalent to 8 x (5-6) = 40-48 shore-type alkaline ponds).
Further, the power source in the electric so device 6 of the conventional example (C) is a single-channel power source.
Type nickel cadmium army, Oki, 8 pieces (immediately converted to type 3 'fY,
8 x (5-6) = 40-48 pieces) formed by Ji,,
Furthermore, in the power supply device of conventional example (1)), # is 1
．． 8 medium 2-inch nickel cadmium tubes (8x AA size equivalent)
3 = = 24 pieces).

Conventional example (Tl) ``Power supply device f using alkaline battery (
It takes a lot of time to charge, and it doesn't work quickly.
``Press photo 1'' (1. Inappropriate for large strobe for frame shadows, etc.) 2.!l: Previous example ((
2) IPl type Nino cadmium tun/II! , total 71
1 TIT, in the case of source lock, fr, 1, 'Tunike 1
4: It is about twice as long as the power supply device of the present example (A), but the point r for both 1 hour and the number of times of light emission.

Warehouse '7 (Compared to the original device in Example 5 (A), Case 11)
The price is significantly lower. Furthermore, φ2 of conventional example (1))
In the case of a power supply using a type nickel power Domiu J-battery, tar,,'ti (the capacity h1'' is about the same as the power supply 1 of the xylophone 6 #1 example (A)!? and the number Hτ) , the charging time is InO2, and the number of times of light emission is about 1+y, and the performance is only about 3() to 4% compared to the power supply device of this embodiment (A).In contrast, the present invention゛At the head of the power supply device in embodiment (A), a plurality of C converters are provided in parallel to reduce the discharge box and current in each power source battery. As a result, the active material on the battery's electrode plates can be used effectively, and a significant improvement in t'1 and performance can be seen in terms of both the charging time and the number of times of light emission. L.

As described above, the illumination according to the present invention operates with a rated current of 1)C-1)C several tq are installed in parallel, and the first and other converters are made at the same time. I started charging the main capacitor, so I decided to charge each station, n11, and so on. By reducing the load by 1, the utilization rate of the 1n pond can be greatly improved by 1r4f,c. Therefore, by using the same DC source, it is possible to shorten the charging time of a large strobe and increase the number of flashes at the same time.

In addition, the DC T'j, rho discharge "+if, θW1" is lowered, and the DC-1)C converter's i:
il1 operating voltage is also 1'σ) Operation 11'1' in a small strobe.
The parts that make up the 117 mount ('1q) are sewn using the same parts used in the conventional small Q+/strobe, which are relatively small, easy to handle, and cheap.Therefore, the power supply device It is possible to suppress the overall value of 1st grade.

Finally, since multiple Dc-xx converters were missing, the heat source was divided into multiple units.71. f.
Moreover, since the load on each individual heat generating unit 11x is reduced, the number of heating units is smaller than that of the conventional system.Therefore, the space for the radiation plate and the L group 1jj4 is small or unnecessary, and parts can be reduced. The freedom of placement J, τ4° has been greatly improved, and together with the miniaturization of the above components, it is possible to achieve a significant miniaturization of the source assembly. Reducing the load f can contribute to a significant improvement in the reliability of the entire power supply device.

Therefore, it is possible to provide a strobe power source %n which is extremely convenient in terms of use and manufacture and eliminates the conventional drawbacks mentioned in the specification.

In addition, in each of the above embodiments, t'1 is provided in parallel])
Although the number of C-1) C converters was set as four and five, the number of J) C-1) C converters can be selected as appropriate depending on the capacity and number of main capacitors to be charged. Needless to say, it's 11.

[Brief explanation of the drawing]

FIG. 1 shows an example of a conventional strobe holder and holder device i'J. Figure 2 is a diagram showing the relationship between 1 capacity and 1 capacity, Figure 3 is an example of an implementation of the present invention. The electrical circuit diagram of a strobe power supply device showing an example, and Figure 4 are as follows.
1"l)' Circuit diagram of source device, 5thfD?I r;t, , k, niE Shown in Figure 4, p) y, llI+lf' Jll Possible,
The characteristics of the m device toy are shown in Figure 1.
1 for strobe at the end of Y;

[Compared with the characteristics of the source device, 7J
” l/ρ[Figure 1-(“There is. CM,, CM,, , (2M7... Main:
"Jn7'n・suI'll + D12; I)t+
+ D22 ; I) s+ 1DR2; I) 41 , J
'4t :I) +++ + ')pa... Rectifier diode (diode) DC (2, -DCC,,
DCC,, -DC (ha... I) C-D C
Converter (71 inverter) Nagi, ~1.:6.・・・・・・
・・DC power supply S~”II・・・・・・・・・・Power switch patent applicant Olympus）Y, Gaku1-
, S'j+'I style Ishadai 哩人 藤
River 1; Part 6.・1.゛Number of light emission [] (
(Japanese) Procedure supplement iE 'i'l (voluntary)
1981 (1, 1), I g2 II Patent n Director General Wakasugi Aito 1, Incident Display 1981 Special g'l'I+,! +°
1 No. 15!1227 ""j2 Title of the invention Strobe electric αj1 device 1□'1゜3. Person making the amendment (Relationship with 4. Name of applicant ((1:37) O') 7. )' (1st grade, 2nd 1st year, 11th member of the Stock Representative Association Address: 5-1152-14 Matsubara, Isedaya-ku, Tokyo Name (7655) Seven Fujikawa 1 de 13 (TI 噸'JL: U24-27 (Old)) 5. Subject of amendment 1. Detailed description of the invention in the specification" column and Drawing 6. Contents of the original ID (1) "Automatic "Oscillation" was changed to "Self-excited oscillation." (2) Delete the 1-U-order γε ray SJ written at the beginning of the 1st line of the same No. 6R to the end of the 14th line.
:Substitute the sentences p and 'r. The current of [ also begins to decrease, and after the cut-off of 1, an oscillating circuit is formed by the energy stored in the primary winding P and the distribution volumes 1j,'j, and the vibration Na lj to 1 begins. And vibration', 1.〆+ii
) In the phase in which the h.l. transistor (2, is biased to the end), current flows through the peak l. J So, 1 time 4;' (1 (t・expand 7 and the oscillation is repeated.) (3) The beginning of the 8th line ml from the bottom of the same () ', (1 j L 1 match "1st example") , [J next side J t/i- amended A,, 1゜(・1) Same written at the beginning of No.
jl: l-/day 1 Add "no" after u-ho 1-
3-ro. (5) I- is written near the end of the 8th line of the 14th Tei.
+)(:C,.~uccs,J,[Dcc2~1nC(,',,+
l I (2 I shishimeru. (6) Same r'1- Sadashita kamo 2 lines 1-1 Misaki 1
("-, +tL 1 (ν, shita "ko" to 1st () negative 10th line end yodeii i・delete-zu" 4). (7) Written at the beginning of the 2nd line of the same tf lower page. 1i(7,
Delete the part after "l /, 1 or off," and end with the 0th line, and substitute the following sentence. [The −1st order is stored in the line P (・The energy is back emf′1
b. Become a river and leave at 4 zuro. With the generation of this back electromotive force 11, an oscillating circuit is formed between the winding and the distribution volume of 1Φ/Z that grows between the lines, and starts to vibrate. I will. This vibration type 11. Is the primary winding P [-)
It is also transmitted to the secondary winding S, but it is transmitted to the transistor (Jll with a cycle with 11 knee bias) and the inner transistor (
Turn on J, 1 and transistors Q+2+Q+3. Thereafter, the sequence 4II4 is repeated in the same manner.7. )
. ” (8) “A[” written at the end of the 7th line of the 21st Sada] is changed to [-Saved]. ((Li same; i 已27 Resupply C1 line 1 written in ``Graph no'' is changed to ``Graph ga'' 1, (+o,) same page 27 page 27 line 12 NU written ``2o
After J, add 1. (11) Same 2nd! ] In the line "True No. 1", change "at the same time" to "equally". (12) Attached to the book ItrI (in the drawings, Figure 4 is attached U', i), amended as in 1. zu.
``+4159227 Transfer 24 Name of invention for strobe''
+i, v+me device 1'15, corrector 2Jl-1) [Which system 11'a'if'l
'1111 people Izu ``Shi'' 1llllze) R'J11Δ 21 Nakayamagaya, Shibuya-ku, 1143 City 2 Name (03
7) Merinbus) 1'1 Gaku'' Kami Co., Ltd. 4, Agent Hitsumi Itsu ``Higashi);
Ding II 5211r No. 14 Name (7655
) i bar river 7 part (Tj rei 324-27
0Ll) 5. Target of correction Bright 1iill 3! , i's [Special #F
41 id 6, +iii Correct Self-Answer Yu' Detail, 1) of ``range of n+°1 search''1t'4l'Q'rN'l'
i+! 7 Ice's Qlil, En'na, attached sheet] Yuri Kai Mazu. Rikiki (2,9n #'r i~ φ1 (question direct i+jf,
'＋IJ, 'υQ is the same as η几dρ? It is made up of converters that reduce the LU pressure to the main condenser of the strobe.
The unit and each charge, the unit is ten tons
it-: Between the main capacitors? -Jt If &-J' 7. J
'F! triQ and one 'ff' Z+ 717 for Stoo Ho, dhi kll,. ]

Claims (1)

[Claims] A plurality of lights for charging the strobe's -t capacitor, which is formed by a converter having the same voltage and the same capacity as a DC 111υ1λ, ts, and a circuit configuration.
A power supply switch characterized by comprising: a unit; a diode inserted between each charging unit and the main power supply; and a power switch that enables all of the charging units to operate at the same time. Tunyuan device.