JTY-1 晶体管直流调节器



JTY-1 transistor DC regulator

User manual

11 pages in total

PLA 5705 factory

August 4, 1980

Content

1. usage …………………………………………………………………………… 2

2. main technical performance and requirements …………………………………………… 2

3. work principle …………………………………………………………………… 3

4. check and maintenance…………………………………………………………………… 7

5. main component numeric value table…………………………………………………… 10

6. electrocircuit principle drawing…………………………………………………… 11

1. Usage

JTY-1晶体管直流阀调压器与ZF-1.5型航空直流发电机配套工作。用来代替现采用的ZY-1500振动式调压器。使发电机电压稳定在某一范围内。

JTY-1 transistor DC (direct current) regulator is designed to work together with ZF-1.5 DC generator. It’s used to replace current ZY-1500 oscillating regulator and to make the generator working voltage under certain rage.

2. Main technical performance and requirements

1. 27.5±0 2 25℃±10℃时）。

3800转/分1200rmp – 5900转/分（1860 0 – 100% 27 – 28伏（±0.2伏）范围内。

Fixed voltage: 27.5±0.2 V. (Under the following circumstances: The generator is at middling revolution speed and idle load. Surrounding medium temperature is 25℃±10℃.)

While the generator revolution speed is changing within the range of 3800 r/m to 5900 r/m and the load is changing within the range of 0 to 100%, the DC regulator is able to maintain the voltage within 27 – 28 V±0.2V）.

NOTE: r/m is revolution/minute.

2. 5.4 1500

Fixed current is 5.4 A ( when the generator power is 1500 watt-hour).

Note: A is for ampere.

3. ±60℃ - 55℃ 3800转/分 – 5900转– 100% 26.5 – 28.5 （±0.2

While the surrounding medium temperature is within the range of ±60℃ - 55℃, the generator revolution speed is changing within the range of 3800 r/m to 5900 r/m and the load is changing within 0 to 100%, the DC regulator is able to maintain the voltage within the range of 28.5 （±0.2伏）.

NOTE: Pls kindly check the italic part with the original copy. It seems there might be a small typing mistake I’ve made last time since it doesn’t sound right to me.

4. 26.5 – 28.5 ±0.2

While it is working under various of high-altitude conditions, the DC regulator is supposed to maintain the voltage within the range of 26.5 – 28.5 V.

The DC regulator is supposed to work normally under the following conditions:

1. +60℃ -55The surrounding medium temperature is changing from +60℃ to -55℃ while the DC regulator is on ground.

2. -55 5000

The temperature is less than -55℃ and the altitude is reaching 5,000 meters.

3. 在+40±2 95±3%The temperature is +40 ±2 and the relative humidity is reaching 95±3%.

(4) 20 – 200 0.5

The oscillating frequency of fixed part is 20 to 200 HZ and the biggest swing is 0.5 mm.

(5) 40 – 100 4g.

The impact frequency is 40 – 100 times per minute and the impact overload is 4g.

6. 直24 – 30

The manual regulating range of the DC regulator is within the range of 24 – 30 V.

7. 150%

The DC regulator is designed to bear fixed current’s 150% of overload in 1 minute.

8

Supply revolution speed and voltage regulation revolution speed:

2600 rmp 25.5±1

When the revolution speed of the generator is at 2,600 r/m, the supply voltage of the generator is supposed to within the range of 25.5±1 V.

3000 rmp 27.5±0.2

When the revolution speed of the generator is at 3,000 r/m, the regulation voltage of the generator is supposed to be 27.5±0.2 V.

9 2.75

The total weight of the DC regulator (including accessories supplied) is less than 2.75 KG.

Note(Handwrite):

Work principle

10

Transistor DC regulator circuit diagram

图一 diagram 1

11

Transistor DC regulator block diagram

图2 diagram 2

Pls find the following translation for the words in the diagram 2.

The above one: starting electrocircuit

From left to right:

Sampling and compare, switch amplifying electrocircuit

Power amplifying electrocircuit

DC generator

Generator fault signal light and reverse current severable electrocircuit

NOTE: The word “severable” might not be correct here. But I can’t find the proper word. Thus, it’s only for your reference. Pls pay attention to this.

12

The connection circuit diagram between the transistor DC regulator and the generator

图三 diagram 3

The left: battery

The right: JTY-1 DC voltage regulator

13

Work principle of each part

Sampling and compare, switch amplifying electrocircuit

R1 R2 W DW1 DW2 DW1-2

The sampling and compare part of the DC regulator is mainly consist of R1, R2, W (potentiometer), DW1 (stabilovolt) and DW2. It senses the change of the generator voltage and compare it with DW1-2 (constant stabilovolt value).

T1 R3 R4 C2

Switch amplifying electrocircuit is mainly consist of T1 (transistor), R3 (resistance), R4(resistance) and C2 (capacitance).

After the comparison with stabilovolt, the change signal of the generator voltage is amplified through the switch amplifying electrocircuit. It’s used to control the multitube’s switch amplifying electrocircuit. C2 (capacitance) is mainly used to restrain the self-oscillation within the regulator.

Power amplifying electrocircuit

T2 T3 R4 R5 D2 D1 C1

The power amplifying electrocircuit is mainly consist of T2 (transistor), T3 (transistor), R4 (resistance), R5 (resistance), D2 (diode), D1 (diode) and C1 (capacitance).

T2 T3 DW1-2 T1 T2 T3 R4 DW1-2 T1 T2 T3 T1

The multitube is consist of T2 and T3 and used to improve current gain. When the output voltage of the generator is less than DW1-2 (stabilovolt) and breakdown voltage, the stabilovolt is locked. As a result, T1 is stopped due to lack of base current.

The multitube is consist of T2 and T3 and conducted (connected) through R4’s forward offset resistance effect. The excitation current of generator is passed through the mulititube and enlarged consequently. Meanwhile, the voltage is getting high. When the generator voltage raised to a certain value (voltage regulation value), DW1-2 breakdown voltage and is conducted (connected). As a result, T1 is conducted (connected) due to generating base current. At this time, the emmiter and base of the multitube which is made of T2 and T3 is shorted due to T1. Consequently, the multitube is stopped and the generator excitation electrocircuit is shorted. The generator voltage is getting down. The voltage will raise again after it reduced to voltage regulation value. Go round and round, the generator voltage is stabilized at the selected voltage regulation value.

R5 C1 T1 T2 T3

In order to improve the regulator’s sensitivity and wave shape, R5 and C1 compose current feed back control electrocircuit. It accelerates T1’s conducting (connecting) and stopping process. It also accelerates mutiltude (T2 and T3)’s blocking and conduction process and improves on-off frequency. As a result, the voltage regulation value is becoming more stabilized.

R5 D2

R5 and D2 form another reactive electrocircuit. It improves regulator’s load characteristic. In other words, it reduces the impact on generator voltage after generator load changed.

D1 T3

D1 is generator excitation winding continuous flow diode. It’s used to protect T3 (transistor).

Starting electrocircuit

J1 “+”，“-”10

Starting electrocircuit is consist of J1 (relay). Two winding terminals are connected to “+”，“-” terminals of generator. The normally closed connection point is at the excitation electrocircuit (It connects the regulation tube’s short circuit.) When it’s starting up, the excitation current is fed through the relay’s connection point to form a loop without pass through regulation tube. Thus, the voltage is generated in a very short time. After the generator voltage raised to a certain value (10 V approx.), the relay functions. The normally closed connection point is broken. Then, the excitation is starting to receive control from the regulator.

RD

In order to prevent the voltage raising continuously due to it’s out of control, a RD fuse is set up in-series at the generator excitation electrocircuit. The excitation electrocircuit will be cut off if the current was large than this value. It prevents the voltage to continue to raise. Thus, it protect the generator from overvoltage.

Generator fault signal light and reverse current severable electrocircuit

T4 D3 D4 D5 R6 J D

The signal light electrocircuit is mainly consist of T4 (transistor), D3, D4, D5 (diode), R6 (resistance) and J (signal light relay). Reverse current severable electrocircuit is made of D (diode).

D T4 J J D 0.6-0.7 T4 T4 J

When the generator voltage is less than battery voltage or the generator doesn’t supply power towards outside, D (reverse severable diode) has no current passed, the tube suffers reverse voltage. As a result, T4 (transistor) is stopped due to lack of base current.

J (signal light relay) doesn’t work. Signal light forms a loop through the current supplied by battery passed through J (signal light relay)’s normally closed connection point. The fault light lit. It means the generator doesn’t supply power towards outside electrocircuit.

When the generator voltage is large than the battery voltage and supplies power towards outside electrocircuit, tube voltage drop (0.6-0.7 V) is generated after current passed through D (reverse current severable diode). It’s added in the middle of T4 (transistor)’s base electrode and emmiter electrode. T4 is connected. J starts to work and cut off the normally closed connection point. The fault light goes off. It means the generator stops supplying power towards outside.

R6 D3 T4. T4 D R6 D3 D3 D D3 T4 T4 R6 D3 D D D3 T4 T4 J

R6 (resistance) and D3 (diode) are T4 (transistor)’s fixed offset electrocircuits. It’s used to make sure signal light electrocircuit works reliably (especially under low temperature). Under the low temperature, T4’s dead zone voltage is increased, D (reverse severable diode) doesn’t generate enough tube voltage drop to make the transistor connected. Thus, the fixed offset electrocircuit is set up.

Whether supplying power through battery or the generator, it can form a loop through R6 or D3 after having this fixed offset electrocircuit. Then, D3 generated certain tube voltage drop. When the power is supplied by the battery, the tube voltage drop generated by D3 (diode) cann’t be added to T4 (transistor) due to D (reverse current severable diode) has no current passed. Thus, T4 doesn’t work.

Only when the power is supplied through the generator, the current passed through D3, R6 and D (reverse current severable diode) also. D and D3’s tube voltage drops are added together. Then, they work together in the middle of T4’s base electrode and emmiter electrode. This makes T4 connected and J (signal light relay) get started to work. It guarantees that the fault signal light also can work reliably under low temperature.

R6 D3 R6 is also D3 (diode)’s limiting resistance.

D4 T4 D5

D4 (diode) is designed to protect T4 (transistor). D5 (diode) is signal light relay’s winding continuous flow diode.

四Check and maintenance

The resistor DC regulator should be checked after it got some problems or some collisions happened to it. The check methods are as follows:

14 Ordinary check

Remove the DC regulator’s cover, conduct appearance check to its subassemblies, fuse, weld, printed electronic circuit, cable plug, etc. If everything looks right, preliminary check should be conducted to plug subassemblies through ohmmeter.

15 check by ohmmeter

Measure the resistance value between the pins through ohmmeter:

| “+” | “-” |Resistance value |Ohmmeter’s range |

|Connect to ohmmeter “+” |Connect to ohmmeter “-” | | |

|#2 |#5 |20 – 60 ohm |X1 |

|#5 |#2 |200 – 600 ohm |X1 |

|#2 |#3 |20 – 60 ohm |X1 |

|#3 |#2 |200 – 600 ohm |X1 |

|#1 |#2 |3K – 10 K |X100 |

|#2 |#4 |2K – 6K |X100 |

|#4 |#2 |> 6K |X100 |

MODEL U-10

NOTE: measure through MODEL U-10 mini multimeter.

1 X100

NOTE: Ohmmeter’s measured value on X100.

2

When the resistance value is within the above table after the preliminary check is done to the pins through ohmmeter, power turn on check is then can be started.

16 power turn on check

1

Check the following fundamental performance parameter: start up, power supply revolution speed, power supply voltage, voltage regulation revolution speed, voltage regulation values, etc.

2

Check generator speed and voltage variation after load changed;

3 Check if the generator fault signal light electrocircuit works normally;

4 Check the adjustable voltage range;

D Measure D (diode)’s forward and inverse resistance values and compare them with last time’s to see if there is any changes.

NOTE: Inverse diode, battery and generator should be connected during the above power turn on check to conduct a complete check.

17 notices during the check

1

Insulation resistance meter should be banned to measure insulation resistance while the regulator is on the aircraft or itself in order to avoid to breakdown the transistors located within the regulator, etc.

(2) 5 4

Regulator is able to measure each part electrocircuit to see if they work normally. However, batter and reverse current severable diode must be connected when it measures the generator fault signal light electrocircuit.

When it does the voltage regulation work, battery and reverse current severable diode is allowed not to be connected. But regulator’s #5 and #4 plug wires are banned to touch shell and other parts.

3. 的“+”，“-”。

The generator which works with the regulator should change its excitation’s “+”，“-”.

a. “+”与“山” “-” “山” “-”

“+”与“山” wires of the generator which is on the test table can be connected. Remove the steering plate, draw out the “山” wire from the excitation connection lead which is formerly connected with “-“ wire, meanwhile, “-“ remains stationary. It’s as follows:

The left one: connection conditions before modification

The right one: connection conditions after modification

(b) “JTY-1” 200

Pls find detailed information about connection modification of the generator on “JTY-1 transistor DC regulator modification instruction”. Connection leads should be installed according to the original instruction after the generator has worked 200 hours in order to avoid the generator doesn’t supply power.

18 troubleshooting

a T3

Regulate T3 open circuit;

b T2

Multitube T2’s base electrode and emmiter electrode open circuit;

c R4

R4 (offset resistance) disconnected or unsolder;

d 2A 2A overvoltage fuse broke;

e D D (reverse current severable diode) open circuit;

f +，-

“ +”，”-“ wires and other wires which affects regulator’s normal work are disconnected or unsolder.

2 The generator’s voltage is out of control and regulator doesn’t work.

a T3

The base electrode and emmiter electrode of T3 (regulator tube) are breakdown and short circuit.

（b）启动继电器常闭接点粘住，或线圈断开；

The normally closed connection point is sticked or loop is disconnected;

c DW

DW (stabilovolte)’s any open circuit;

d T1

Any open circuit of three electrodes of T1 (amplifying tube).

e D1 T3

T3 (regulate tube) has been brokendown and is out of control due to D1 (continuous flow diode)’s open circuit.

f

Divider resistance is unsolder, etc.

（3）电压不稳，电压摆动；

Voltage is not stable and swinging.

(a) W

The pointer of the voltage divider’s potentiometer W doesn’t contact well.

b

The contact point of pneumatic relay hops.

b. D2

D2 (severable diode) open circuit.

4.

The generator is supplying power. But the fault signal light doesn’t go off.

a. T4

Any of T4 (transistor)’s three electrodes is open circuit.

b. 管D4

D4 (anti-voltage diode) is open circuit.

c. R6

Fixed offset resistance is disconnected or unsolder.

5.

The fault signal light goes off in advance.

a. D3

D3 (diode) is open circuit.

五． 主要元件数值表 main component numeric value table

| | | |

|code |description |specification |

|R1 | |RJ - 1- 560 ohm - ±5% |

| |Metallic diaphragm resistance | |

|R2 |--- |RJ – 1 -560 ohm - ±5% |

|R3 |--- |RJ – 0.5 – 1.1 K - ±5% |

|R4 |--- |RJ – 2 -750 ohm - ±5% |

|R5 |--- |RJ – 0.5 -15 K - ±5% |

|R6 |--- |RJ – 0.5 -3.3K - ±5% |

|C1 | |CJ10 – 250 -0.1 - ±10% |

| |Metallizing paper dielectric capacitor | |

|C2 | |CZ10 -300 -3300 - ±10% |

| |Paper dielectric capacitor | |

|D1 |二极管 diode |2CZ11B |

|D2 |--- |2CP21H |

|D3 |--- |2CP6B |

|D4 |--- |2CP6B |

|D5 |--- |2CP21H |

|DW1 | stabilovolt |2DW7C |

|DW2 |--- |2DW7C |

|T1 | silicon three electrode tube |3DG27B |

|T2 |--- |3DG27B |

|T3 |--- |3DG27B |

|T4 | |3DD6D-T |

| |Silicon heavy power three electrode tube | |

|RD | straight form fuse |TB2 (2A) |

|J1 | minitype DC sealed relay |JZX -4 M |

|W | organic solid potentiometer |WS-0.5 -3300±10% |

|D | diode |2CZ100 |

1 TV-1 电路原理图 1 TV-1 schematic circuit diagram

Note: stabilovolt means regulator tube.

................
................

In order to avoid copyright disputes, this page is only a partial summary.

Google Online Preview   Download