BK 1602 Instruction Manual 电路图.pdf

《BK 1602 Instruction Manual 电路图.pdf》由会员分享，可在线阅读，更多相关《BK 1602 Instruction Manual 电路图.pdf（16页珍藏版）》请在收音机爱好者资料库上搜索。

1、I SOLID STATE, HIGH.VOLTAGE, REGULATED DC POWER SUPPLY i trIYNASCAN COF|POF|ATION RadioFans.CN 收音机爱 好者资料库 C O N T E N T S PAGE SPECIFICATIONS 3 FEATI.JRES 3 INTRODUCTION 4 OPERATING CONTROLS 4 OPERATING INSTRUCTIONS 5 APPLICATIONS .7 CIRCI.JIT DESCRIPTION . . .I1 MAINTENANCE .13 CALIBRATION .l3 FUSE

2、 REPLACEMENT . . .14 WARRANTY Cov- 3 RadioFans.CN 收音机爱 好者资料库 INPUT VOLTAGE 4OOV DC SUPPLY Output Voltage: Output Current: Grrrent Limit Adjust- ment/Protection: Load Regulation: Line Regulation: Noise NET WEIGHT: SPECIFICATIONS 105 - I25VAC, 60 Hz 0 - 400V, continuously vari- able. 0 - 20OmA. lOmA t

3、o 200rnA, continu- ously variable-sets trip cur- rent to shut-down supply out- put. 0.1% at high end. 0.t%. Less than lOmV peak-to-peak. 0 - 100V, continuously vari- able. 0 - 2mA. r% lVo Less than 1OmV peak-to-peak. Current-limiting resistance. 6.3V !57o, full load; I IOVAC primary. 3.5A continuous

4、. Thermal circuit-breaker. 6.3V !5%,fuII load; I I0VAC primary, each side to center-tap. 3.5A continuous. Thermal circuit-breaker. 0 to 400V DC (400V supply only), !37o. 0 to l00V DC (100V supply only), !3%. Range selected by switch. 0 to 200mA (monitors 400V supply only), t3%. 14-118 x 3-7 f 8 x 10

5、 deep. I I lbs. FEATURES Fully solid state, utilizing integrated circuits, silicon transis- tors and diodes and one SCR. Among the advantages of solid state construction are dependability, no warm-uf time or stabilization delay, ruggedness, compact size. Current Umiting/Overload Protection: Protects

6、 load and instrument against overload. Pre-settable automatic current shutdown, fully adjlstable from l0rnA to 200mA provided on.the B+ output. Resistive limiting protects the C- supply and load. The 6.3VAC and the 12.6IAC heater windingdinb loads are protected by a resettable circuit breaker. Simpl

7、ified Cunent Shutdown Setting: Permits setting B+ current shutdown point without disturbing external load connections or output voltage settings; does not require application of short circuit to output terminals. sirirply press the button and adjust the CURRENT SET controi tb the desired setting on

8、the current meter. O400V, G200mA: Output voltage continuously adjustable over.entire -rgnge wjth g single control; no range switching required. Fully regulated output at all levels. G100V, G2mA: Output voltage continuously adjustable gver. entire rang with a single control; indepehdently tloating ou

9、tput. Can be used independently of the 0400V oglpgt or can be used with either polarity referenced to the 400V output. 6.3VAC, I2.6VAC CT, G3.5A: Independently floating AC sources. Dual Meters: Allow B+ supply output voltage and B+ supply current drain to be monitored simultanebusly. The voltmeter c

10、an also be switched to monitor the bias iupply voltage. Both meters have overload protection to prevent damage from excessive loading. one current Range: Simplifies current shutdown setting by requiring only one adjuitment. Two Voltmeter Ranges: 0-400V and Gl00V ranges for the B+ and C: supplies res

11、pectively provide maximu=m resolu- tion with a minimum effort to the user. Standby-DC On Switch: Disconncts the DC supplies from external loads without disturbing voltage or iurrent set- tings. Pilot- Lamp: Lights up to indicate at a glance that the supply is on. Mechanical he-Regulator: B+ supply r

12、ectifier voltage is increased in progressive steps as output is increasea. inis improves efficiency as less power is converted to heat at low voltage output. Floating outputs: Permit referencing the positive or nega- tive outp_uls of the -B+ supply and the C- supply to any external DC potential or g

13、rounds. Reverse ?olarity hotection: Prevents against accidental damage from reverse polarity connections to an external power source. Attractive, Functional tlesign: Permits stacking of units when more than one power supply is required. - Ery t9. Ope_rate: All controls are identified and easy to rga

14、d- Simplified operation helps prevent operator mistakes that might damage equipment. - RadioFans.CN 收音机爱 好者资料库 The B and AC voltages and currents of 6.3 and I2.6VAC at 0-3.5A. The high perfor- mance, operating ease, and special features make it an excellent choice- for most applications requiring a

15、high voltage DC power source. It is wellsuited for,powering fully -solid siate circuits, tube type circuits,. and hybrids. Unlike some supplies, the user can rectify the AC.source and have 3 indefendent supplies for powering digital/analog circuits, etc. Following is a list of some of the most popul

16、ar applications of 1602: o Service Technicians: Powering high voltage solid state equipment, or individual circuits consisting of transis- tors, vacuum tubes or both. o Factory Technicians: Powering complete equipment or individual assemblies during testing in the factory. o Engineers and l:boratory

17、 Technicians: Powering pro totypes and experimental equipment. o Electronics Instructors and Students: Laboratgry ex- periments in basic and advanced electronics. CONTROLS 14 12 11 Fig. 1. Controls and Indicators. INTRODUCTION OPERATING 86 l. 2. CURRENT METER. Measures actual B+ output load current

18、during normal.operation. Indicates Bt current limit when set/reset switch 3 is pustred. B+ CURRENT SET. Provides adjustment of B* cur- rent limit. Continuously adjustable from l0-200mA output current. B+ CURRENT PUSH TO SET AND RESET (SET/ RESET) BUTTON: When fully depressed and held, connects cunen

19、t meter 1 fo read the B+ current limit setting. When pressed and released, resets B+ overload circuit if it has been tripped. OVERLOAD INDICATOR (RED). Lights when B+ current limit has been exceeded and the B+ zupply has strut down. STBY ON. STBY position: Removes power from terminals 8, 9, 13, and

20、14, and voltmeter 10, but leaves the DC supplies activated and at standby condition. ON posifion: Applies power to oirtput terminals 8, 9, 13, 14, and voltmeter 10. 6. POWER. Ughts continuously when power supply is turned on. 7. TERMINAL. Earth and chassis ground terminal- B+ TERMINALS 8. + TERMINAL

21、. Positive polarity of B+ output. 9. - TERMINAL. Negative polarity of B+ output. 10. VOLTMETER. Indicates output voltage of B+ or C- srpplies. ll. METER RANGE. B+/G400 position: Selects full scale ranse of 400 volts for voltmeter 10 to meter $+ output vollage. C-/G100 position: Selects full scale ra

22、nge of 100f for voltmetei 10 to meter C- output voltage. 12. LEVEL (B+). Turns off power supply at extreme counterclockwise rotation. Clockwise rotation turns on power supply and adjusts B+ output voltage upwards. 3. 4. 5. og Be C-TERMINAI,s 13. - TERMINAL. Negative polarity odtput of C- supply. 14.

23、 + TERMINAL. Positive polarity output of C_ supply. 15. C- CONTROL. ,gsts C- output voltage between terminals 13 and t4 from 0 to-100V witf, clockwise rotation. Output voltage is monitored on Volt- meter 10 when METER RANGE Switch 1l is in C-lGl00V position. 16. ;_ quired. a. Use only a polarized 3-

24、wire outlet. This assures that the power supply chassis is connected to a good.earth. ground and prevents danger from electrical shock. lf a 2-wire to 3-wire- adapter m_ust be used, be sure the ground wire of the adapter is attached to a good earth ground. b. If a circuit under test requires applica

25、tion of a fixed bias, always apply the required voltage using the_C- supp-ly first; before applying the Ii+ voltage (Step 6-d). 4. Turn gn-lhr_ qower supply by rotating the LEVEL control 1Z slightly clockwise past the-.,click. The POWER indicator 6 will light. - Determine the maximum safe load curre

26、nt for the device to be powered and set the automatic current strutdown for that value as follows: a. Push and hold the set/reset bu_tton 3 and adjust the B+ CURRENT SET control 2 for the desired shut_ down current point as read on the CURRENT meter 1 . b. Release the set/reset button 3 . c. Turn -

27、LEVEL (B+) control 12 to the desired voltage. d. If the maximum safe load current is unknown. start with a low current setting. If the setting is too low, the overload circuit will trip when pow6r is apphed to the load in steps 6 and 7.lfio, increairtf,. current _ setting in small steps until the ov

28、erload circuit does not trip during normal operation. NOTE In certain conditions of high-line voltages or B+ OUTPUT. voltages gre,ater ihan 100V,-resetting rygy.not be accomplished by simply pushing thJ SET/RESET 3 buttbn. (Thisis Oue t6 the qr-VCE sensing circuitry described under CURRENT-VCE SENSI

29、NG CIRCUITS, page 13.) Should this occur proceed as follows: (a) Set the STBY/ON S switch to the STBY position. H6Bm sr Return the STBY-ON Switch 5 to the ON position and set the output voltage as follows: a. Set METER RANGE Switch to C-l0- 100V when adjusting C- supply output. b. Turn C- control 15

30、 until desired voltage is reached. Flg. 2. Typical Vacuum Tube Circuit Application. lncrease the strutdown point slightly with the B+ CURRENT SET control 2 .lt the normal load current is unknown, this technique may be used, but, if the current limit is already set for the maximum safe load current,

31、do not increase the current limit further. Check the bias setting to determine if it is incorrectly set. (5) Refer to NOTE under 4d, Page 5. NOTE Some equipment has a highly capacitive input, which results in a surge current when power is initially applied. When powering such equipment, the overl,oa

32、d circuit may activiate when the STBY-ON switch is placed in the ON position with full operatingvoltagepreviously set. If this occurs, reduce the voltage setting before resetting the overload and then bring the output level up gadually to allow the capacitors in the equipment to charge; this elimina

33、tes the surge current. c. If the power supply continues to shut dodn at the correct current setting, check the load circuits to determine the reason for the overload. d. To remove power from the load without disturbing the voltage or current shutdown settings, set the STBY-ON switch 5 to the STBY po

34、sition. e. Refer to NOTE under 4-d, page 5. G T N H (3)6. c. Set the METER RANGE switch 11 when adjusting B+ supply output . d. Turn LEVEL control 12 clockwise reached. until voltage is NOTE When a fixed bias is required for a circuit under test, always perform Steps a and b first. (C- bias level.)

35、7. If the B+ load current exceeds the current shutdown point, the overload lamp 4 will light, and the B+ supply will shut down (cunent meter 1 and volt- meter 10 will drop to zero). Restore the power supply to normal operation as follows: a. To reset the power supply, press and release the set/reset

36、 button 3 . If the overload was intermit- tent, this will restore normal operation. b. If the overload lamp remains lit, use one of the following techniques before resetting the power supply again. (l) Reduce the load current. (2) Reduce the voltage slightly with the LEVEL control 12 . to B+/G400V (

37、4) General This instrument may be used to power a vast assortment of circuits and devices in the fields of electronics servicing, electronics manufacturing, electronics design engineering, and electronics education. The l+ and C- supply outputs are fully adjustable over their full range, while the l

38、ow voltage AC iource remains fixed. This flexibility makes it suitable for most applications requiring a single or multiple output high voltage supply. Powering Tube Type Circuits Fig.2 shows the 1602 being used to supply the operating voltages in a typical vacuum.tube RF amplifier stage. l. Connect

39、 the filament of the tube to terminals 16 and 17 for 6.3VAC heater operation or to 16 and 18 if l2.6VAC heater voltage is required. 2. Connect the grid resistor to the (-) terminal 13 of the C-supply. 3. Connect the (+) terminal 14 of the C- supply to the (-) terminal 9 of the B+ supply. APPLICATION

40、S 4. Connect the B+ lead to the (+) terminal I of the B+ supply to provide power for the plate and screen grid of the tube. 5. Connect the common lead to the (-) terminal 9 of the B+ supply. This point is also normally connected to the ground t6rminal- 7 , for strock hazatd prevention. The ionnectio

41、n between ground and the (-) terminal 9 of the B+ supply may not be used during some types of experimentJ, - such as positive grounds and floating supply inputs. With the meter switch in the C-/G100V position, adjust the C- control for the desired bias level. Before the S+ output voltage is adjusted

42、, press the B+ current set/reset button and adjust the B+ CURRENT SET control for the maximum output current desired. Now the S+ voltage level may be increased to the required level- If the current overload circuit shuts down the B+ output, either increase the B+ current set, or decrease the output

43、current drain by increasing the C- output voltage. (Also refer to NOTE under 4D, Page 5.) t-) I = G I N H Vcc g6:gB6Em SIG OUT Fig. 3. Typical Triinsistor Circuit Application. Powering Transistor Type Circuits Fig. 3 shows the 1602 Power Supply being used to power a transistof amplifier circuit. l.

44、Connect the Vcc lead of the circuit to the (+) terminal 8 of the B+ supply. 2. Connect the common lead of the circuit to the (-) terminal 9 of the B+ supply and to the ground terminal 7. EQUIP,IENT BEING POWERED In some circuits the chassis is connected to the positive Vcc line which means the groun

45、d terminal should be connected to the (+) terminal 8 of the B+ supply. Fig. 4 shows the various methods to connect the 1602 to accommodate different equipment power/ground configurations. If there is any doubt which supply lead is common to the chassis, no damage will result if a separate lead is co

46、nnected from the chassis to the ground terminal 7 . EQUIPI4ENT BEING POWERED Fig.4. Power Supply Output Situation. Other Educational Uses The student in an electronics course may use the power supply for powering equipment and circuits as previously described for all other applications. In addition,

47、 the power supply can be used to conduct experiments in fundamental electronics. In learning Ohms law, for example, the relation- strips of resistance, voltage and current are easily demon- strated with the supply. Being able to observe both voltage and current simultaneously is a geat aid in such e

48、xperi- ments. Fig. 5 shows some examples of the types of experiments that may be conducted. Using Two Supplies for Two B+ Voltages Whrn two separate B+ voltages are required simultaneously for testing equipment, two supplies may be used. Set the voltage and current limit for each supply independentl

49、y as required by each load requirement. Only the circuit reference point must be common between the two supplies. Fig. 6 shows some typical examples of proper power supply connections when using two units. Take extra precautions to prevent reverse polarity connections in such situations. The numerous connections can become confusing. Ad- ditional colors for the test leads will be helpful. Thepower supplies are protected from reverse polarity damage from an external voltage source such as the other power supply. 8 Although two supplies may be used