Please enter a valid full or partial manufacturer part number with a minimum of 3 letters or numbers

    12V UNIPOLAR STEPPER MOTOR 2A Search Results

    12V UNIPOLAR STEPPER MOTOR 2A Result Highlights (5)

    Part ECAD Model Manufacturer Description Download Buy
    TB67S580FNG Toshiba Electronic Devices & Storage Corporation Stepping Motor Driver/Unipolar Type/Vout(V)=50/Iout(A)=1.6 Visit Toshiba Electronic Devices & Storage Corporation
    TB67S581FNG Toshiba Electronic Devices & Storage Corporation Stepping Motor Driver/Unipolar Type/Vout(V)=50/Iout(A)=2.5 Visit Toshiba Electronic Devices & Storage Corporation
    TB67S141AFTG Toshiba Electronic Devices & Storage Corporation Stepping Motor Driver/Unipolar Type/Vout(V)=84/Iout(A)=3/Phase Interface Visit Toshiba Electronic Devices & Storage Corporation
    TB67S149AFTG Toshiba Electronic Devices & Storage Corporation Stepping Motor Driver/Unipolar Type/Vout(V)=84/Iout(A)=3/Clock Interface Visit Toshiba Electronic Devices & Storage Corporation
    TB67H480FNG Toshiba Electronic Devices & Storage Corporation Stepping Motor Driver/Unipolar Type/Vout(V)=50/Iout(A)=2.5/ PHASE input type Visit Toshiba Electronic Devices & Storage Corporation

    12V UNIPOLAR STEPPER MOTOR 2A Datasheets Context Search

    Catalog Datasheet MFG & Type Document Tags PDF

    12V unipolar STEPPER MOTOR

    Abstract: 8051 stepper motor interfacing stepper motor interface with 8051 12V BIPOLAR STEPPER MOTOR 12V unipolar STEPPER MOTOR 2a stepper motor with 8051 atmel 89C51RD2 5V unipolar STEPPER MOTOR stepper motor 12v connection 8051 PROGRAM C step motor
    Text: Driving Unipolar Stepper Motors Using C51/C251 Introduction Stepper motors are commonly used in accurate motion control. They allow to control any motion with high precision by counting the number of steps applied to the motor. Most of systems controlling stepper motors are embedded systems such as printer,


    Original     		C51/C251 C51/C251 4214B 12V unipolar STEPPER MOTOR 8051 stepper motor interfacing stepper motor interface with 8051 12V BIPOLAR STEPPER MOTOR 12V unipolar STEPPER MOTOR 2a stepper motor with 8051 atmel 89C51RD2 5V unipolar STEPPER MOTOR stepper motor 12v connection 8051 PROGRAM C step motor PDF

    CD4046 motor application

    Abstract: RS 217-3611 7.5 stepper motor stepper motor 12v connection 1.8 degree unipolar stepper motor 12V unipolar STEPPER MOTOR 2a 1.8 degree bipolar stepper motor 24V unipolar STEPPER MOTOR 5 phase RS 12v 7.5 stepper motor 12V unipolar STEPPER MOTOR
    Text: Data Pack B Issued November 2005 1504256241 Stepper Motor Drive Boards Data Sheet Unipolar stepper motor drive board RS stock no. 217-3611 and bipolar stepper motor drive board (RS stock no. 255-9065) Features The unipolar drive board is capable of driving any 4-phase


    Original     		30Vdc/phase CD4046 motor application RS 217-3611 7.5 stepper motor stepper motor 12v connection 1.8 degree unipolar stepper motor 12V unipolar STEPPER MOTOR 2a 1.8 degree bipolar stepper motor 24V unipolar STEPPER MOTOR 5 phase RS 12v 7.5 stepper motor 12V unipolar STEPPER MOTOR PDF

    191-8384

    Abstract: 24V unipolar STEPPER MOTOR 5 phase 440-442 440-240 step motor 440-420 5V unipolar STEPPER MOTOR 12v stepper motor 1.8 step angle 191-8299 stepper motor 12v connection stepper motor size 23
    Text: Issued March 1997 232-5749 Data Pack B Hybrid stepper motors Data Sheet Size Rear shaft No Yes No No No Yes No No No No No No No 17 23 Yes No 34 No. of wires RS stock no. 8 8 6 6 6 6 6 8 8 440-420 440-436 191-8299 191-8306 440-442 440-458 191-8328 191-8334


    Original     		10000Hz 20000Hz 191-8384 24V unipolar STEPPER MOTOR 5 phase 440-442 440-240 step motor 440-420 5V unipolar STEPPER MOTOR 12v stepper motor 1.8 step angle 191-8299 stepper motor 12v connection stepper motor size 23 PDF

    12v stepper motor 1.8 step angle

    Abstract: 440-442 24v linear stepper motor 1.8 step angle 24V unipolar STEPPER MOTOR 5 phase 191-8384 440-240 5V unipolar STEPPER MOTOR stepper motor with step angle 1.8 24v linear stepper motor 191-8299
    Text: Issued November 1995 020-852 Data Pack B Hybrid stepper motors Data Sheet Size Rear shaft No Yes No No No Yes No No No No No No No 17 23 Yes No 34 No. of wires RS stock no. 8 8 6 6 6 6 6 8 8 440-420 440-436 191-8299 191-8306 440-442 440-458 191-8328 191-8334


    Original     		10000Hz 20000Hz 12v stepper motor 1.8 step angle 440-442 24v linear stepper motor 1.8 step angle 24V unipolar STEPPER MOTOR 5 phase 191-8384 440-240 5V unipolar STEPPER MOTOR stepper motor with step angle 1.8 24v linear stepper motor 191-8299 PDF

    working of speed control of dc motor using ir remote

    Abstract: 1.8 degree unipolar stepper motor 332-082 1.8 degree BIPOLAR stepper motor Stepper Motors 12V speed torque curve 1.8 degree unipolar stepper motor 12v 7.5 stepper motor 332-947 stepper motor driver board 332-098 1.8 degree BIPOLAR 4 PIN stepper motor RS 217-3611 12V unipolar STEPPER MOTOR 2a
    Text: Issued March 1999 232-5345 Data Pack B Stepper Motors Data Sheet 7.5° stepper motors Size 1 RS stock no. 332-947 Size 2 (RS stock no. 332-953) Two 7.5° stepper motors each with four 12Vdc windings (coils) and permanent magnet rotor construction. Designed for unipolar drive, these motors are easily


    Original     		12Vdc working of speed control of dc motor using ir remote 1.8 degree unipolar stepper motor 332-082 1.8 degree BIPOLAR stepper motor Stepper Motors 12V speed torque curve 1.8 degree unipolar stepper motor 12v 7.5 stepper motor 332-947 stepper motor driver board 332-098 1.8 degree BIPOLAR 4 PIN stepper motor RS 217-3611 12V unipolar STEPPER MOTOR 2a PDF

    1.8 degree unipolar stepper motor 332-082

    Abstract: 12v 7.5 stepper motor 332-947 12V unipolar STEPPER MOTOR 2a Dc motor 12V Torque 0,57 KG Rpm 180 gearbox 440-442 Stepper Motors 12V speed torque curve 1.8 degree unipolar stepper motor 12v stepper motor 1.8 step angle DC MOTOR 4000 rpm 1kw 1.8 degree bipolar stepper motor
    Text: Issued Nov 1999 232-5345 Data Pack B Stepper Motors Data Sheet 7.5° stepper motors Size 1 RS stock no. 332-947 Size 2 (RS stock no. 332-953) Two 7.5° stepper motors each with four 12Vdc windings (coils) and permanent magnet rotor construction. Designed for unipolar drive, these motors are easily


    Original     		12Vdc 33eps. 1.8 degree unipolar stepper motor 332-082 12v 7.5 stepper motor 332-947 12V unipolar STEPPER MOTOR 2a Dc motor 12V Torque 0,57 KG Rpm 180 gearbox 440-442 Stepper Motors 12V speed torque curve 1.8 degree unipolar stepper motor 12v stepper motor 1.8 step angle DC MOTOR 4000 rpm 1kw 1.8 degree bipolar stepper motor PDF

    1.8 degree unipolar stepper motor 332-082

    Abstract: stepper motor driver board 332-098 rs 332-082 12v 7.5 stepper motor 332-947 332-082 RS 344-631 12v stepper motor 344631 342-051 UNIPOLAR stepper motor with step angle 1.8 1.8 degree BIPOLAR 4 PIN stepper motor
    Text: Issued March 1995 019-470 Data Pack B Stepper motors Data Sheet 7.5° stepper motors Size 1 RS stock no. 332-947 Size 2 (RS stock no. 332-953) Two 7.5° stepper motors each with four 12Vdc windings (coils) and permanent magnet rotor construction. Designed for unipolar drive, these motors are easily


    Original     		12Vdc 1.8 degree unipolar stepper motor 332-082 stepper motor driver board 332-098 rs 332-082 12v 7.5 stepper motor 332-947 332-082 RS 344-631 12v stepper motor 344631 342-051 UNIPOLAR stepper motor with step angle 1.8 1.8 degree BIPOLAR 4 PIN stepper motor PDF

    1.8 degree unipolar stepper motor 332-082

    Abstract: stepper motor driver board 332-098 bipolar stepper motor with four pin and 1.8 step 12v stepper motor 344631 working of speed control of dc motor using ir remote 1.8 degree unipolar stepper motor 12v stepper motor 1.8 step angle 34205 332-082 gearbox inertia
    Text: Issued March 1997 232-5345 Data Pack B Stepper motors Data Sheet 7.5° stepper motors Size 1 RS stock no. 332-947 Size 2 (RS stock no. 332-953) Two 7.5° stepper motors each with four 12Vdc windings (coils) and permanent magnet rotor construction. Designed for unipolar drive, these motors are easily


    Original     		12Vdc 1.8 degree unipolar stepper motor 332-082 stepper motor driver board 332-098 bipolar stepper motor with four pin and 1.8 step 12v stepper motor 344631 working of speed control of dc motor using ir remote 1.8 degree unipolar stepper motor 12v stepper motor 1.8 step angle 34205 332-082 gearbox inertia PDF

    PF42-48

    Abstract: PCL5023 PF35T PF25-48C1 PF42-48c1 PF35T-48 PF35T-48C1 12v 30 RPM DC geared motor pcl6045 pfc42h-48
    Text: w w w . nipp o np u l s e . c o m Stepper Motors Nippon Pulse America, Inc. A subsidiary of Nippon Pulse Motor Co., Ltd. w w w . nipp o np u l s e . c o m Nippon Pulse Stepper Motors Terminology Overview Nippon Pulse stepper motors are two-coil permanent magnet motors


    Original     		-200911-1K PF42-48 PCL5023 PF35T PF25-48C1 PF42-48c1 PF35T-48 PF35T-48C1 12v 30 RPM DC geared motor pcl6045 pfc42h-48 PDF

    12v 30 RPM DC geared motor

    Abstract: 24v linear stepper motor PF42-48 PF35T 24v stepper motor Wiring diagram PF42-48 24v stepper motor Wiring diagram driver Pulse Stepper Motors PF42 Stepper 24v linear stepper motor 1.8 step angle 12v 10 RPM DC geared motor Nippon Pulse Motor PF42-48
    Text: w w w . nipp o np u l s e . c o m Stepper Motors Nippon Pulse America, Inc. A subsidiary of Nippon Pulse Motor Co., Ltd. w w w . nipp o np u l s e . c o m Nippon Pulse Stepper Motors Terminology Overview Nippon Pulse stepper motors are two-coil permanent magnet motors


    Original     		-200911-1K 12v 30 RPM DC geared motor 24v linear stepper motor PF42-48 PF35T 24v stepper motor Wiring diagram PF42-48 24v stepper motor Wiring diagram driver Pulse Stepper Motors PF42 Stepper 24v linear stepper motor 1.8 step angle 12v 10 RPM DC geared motor Nippon Pulse Motor PF42-48 PDF

    PF42-48

    Abstract: PF35T 24v linear stepper motor PF25-48C1 Nippon Pulse Motor 048 PFCL25-48P4 UL1007 AWG22 12V unipolar STEPPER MOTOR 24V unipolar STEPPER MOTOR pcl6045 Nippon Pulse Motor
    Text: w w w . nipp o np u l s e . c o m Stepper Motors Nippon Pulse America, Inc. A subsidiary of Nippon Pulse Motor Co., Ltd. w w w . nipp o np u l s e . c o m Nippon Pulse Stepper Motors Terminology Overview Nippon Pulse stepper motors are two-coil permanent magnet motors


    Original     		-200911-1K PF42-48 PF35T 24v linear stepper motor PF25-48C1 Nippon Pulse Motor 048 PFCL25-48P4 UL1007 AWG22 12V unipolar STEPPER MOTOR 24V unipolar STEPPER MOTOR pcl6045 Nippon Pulse Motor PDF

    step motor 440-420

    Abstract: 12v stepper motor 1.8 step angle 440-442 440420 rs 440-420 440-420 332-098 440-240 4-phase uniPOLAR STEPPER MOTOR 4-phase BIPOLAR STEPPER MOTOR
    Text: Issued March 1992 B12952 Hybrid stepper motors Size 17 17 23 23 34 34 RS stock no Rear shift No Yes No Yes Yes No 440-420 440-436 440-442 440-458 440-464 440-470 These 4 phase hybrid stepper motors are capable of delivering much high working torques and stepping


    Original     		B12952 10000Hz 20000Hz 160mA 1000Hz 2000Hz step motor 440-420 12v stepper motor 1.8 step angle 440-442 440420 rs 440-420 440-420 332-098 440-240 4-phase uniPOLAR STEPPER MOTOR 4-phase BIPOLAR STEPPER MOTOR PDF

    440-442

    Abstract: 191-8299 RS 217-3611 440-458 12v stepper motor 1.8 step angle 440-436 6V unipolar STEPPER MOTOR step motor 440-420 12V unipolar STEPPER MOTOR 2a 24v stepper motor 1.8 step angle
    Text: Data Pack B Issued 11/05 Hybrid stepper motors Data Sheet Size Rear shaft No Yes No No No Yes No No No No No No No Yes No 17 23 1503142258 No. of wires 6 8 8 8 8 8 8 8 8 8 8 8 RS stock no. 440-420 440-436 191-8299 191-8306 440-442 440-458 191-8328 191-8334


    Original     		10000Hz 440-442 191-8299 RS 217-3611 440-458 12v stepper motor 1.8 step angle 440-436 6V unipolar STEPPER MOTOR step motor 440-420 12V unipolar STEPPER MOTOR 2a 24v stepper motor 1.8 step angle PDF

    440-442

    Abstract: RS 217-3611 191-8299 440-458 12v stepper motor 1.8 step angle 191-8362 12V unipolar STEPPER MOTOR 2a step motor 440-420 stepper motor with step angle 1.8 191-8384
    Text: Issued September 2001 314-2258 Data Pack B Hybrid stepper motors Data Sheet Size Rear shaft No Yes No No No Yes No No No No No No No Yes No 17 23 No. of wires 6 8 8 6 6 6 6 6 8 8 8 8 RS stock no. 440-420 440-436 191-8299 191-8306 440-442 440-458 191-8328 191-8334


    Original     		160mA 1000Hz 2000Hz 10000Hz 10000Hz 440-442 RS 217-3611 191-8299 440-458 12v stepper motor 1.8 step angle 191-8362 12V unipolar STEPPER MOTOR 2a step motor 440-420 stepper motor with step angle 1.8 191-8384 PDF

    nema 34 stepper motor

    Abstract: No abstract text available
    Text: PV P194 2Amp U N I POLAR STEPPER D RI V E M OD U LE The PVP194 Stepper Motor Drive Module, manufactured by Alzanti, has been developed to meet the growing demand for highly flexible, cost effective, unipolar drivers. It has been designed to be compatible with the specifications of many types of stepper motors


    Original     		PVP194 2500Vrms UL94V-0, nema 34 stepper motor PDF

    theory on 5V unipolar STEPPER MOTOR

    Abstract: AIM104-MOTION-1 servo motor encoder align Simple control of HCTL-1100 HCTL1100 HCTL-1100 HCTL-1000 CIRCUIT CONTROLLER MOTOR STEPPER BIPOLAR PARALLEL PC position control DC servo motor theory servo motor encoder wiring diagram
    Text: J613 AIM104-MOTION-1 2192-09279-000-000 AIM104-MOTION-1 Technical Manual Product Information Full information about other Arcom products is available via the Fax-on-Demand System, Telephone Numbers are listed below , or by contacting our WebSite in the UK at: www.arcom.co.uk or in the US at:


    Original     		AIM104-MOTION-1 /Hw/J613/SCH/j613 220pF 220pF theory on 5V unipolar STEPPER MOTOR AIM104-MOTION-1 servo motor encoder align Simple control of HCTL-1100 HCTL1100 HCTL-1100 HCTL-1000 CIRCUIT CONTROLLER MOTOR STEPPER BIPOLAR PARALLEL PC position control DC servo motor theory servo motor encoder wiring diagram PDF

    DARLINGTON ARRAYS 3.3v

    Abstract: ULN2001A SO8 L6232E L297D-L298N RDS modulator ESM1602B TDA0160 l293c TD300IN DARLINGTON TRANSISTOR ARRAYS 2A
    Text: INDUSTRIAL POWER CONTROLLERS & MOTOR DRIVERS SINGLE CHIP MULTIPOWER Type L6245 L6253 L6260 Description 5V Hard-Disk Drive Power Combo 12V High Power Combo 4.5/5-5V Disk Driver Spindle & VCM, Power & Control Combo’s Three Channels Multipower System Three Channels Multipower System


    Original     		L6245 L6253 L6260 L6280 L6285 L6287 PQFP64 TQFP64 PLCC44 DARLINGTON ARRAYS 3.3v ULN2001A SO8 L6232E L297D-L298N RDS modulator ESM1602B TDA0160 l293c TD300IN DARLINGTON TRANSISTOR ARRAYS 2A PDF

    DARLINGTON TRANSISTOR ARRAYS 2A

    Abstract: ULN2001A SO8 half bridge converter 80V output 15A harddisk motor driver L293C DARLINGTON ARRAYS 3.3v Solenoid Driver Darlington 2a step down dc to dc regulator so8 push-pull converter 80V 15A 1.5A 2A voice coil Driver
    Text: INDUSTRIAL POWER CONTROLLERS & MOTOR DRIVERS SINGLE CHIP MULTIPOWER Type L6245 L6253 L6260 Description 5V Hard-Disk Drive Power Combo 12V High Power Combo 4.5/5-5V Disk Driver Spindle & VCM, Power & Control Combo’s Three Channels Multipower System Three Channels Multipower System


    Original     		L6245 L6253 L6260 L6280 L6285 L6287 PQFP64 TQFP64 PLCC44 DARLINGTON TRANSISTOR ARRAYS 2A ULN2001A SO8 half bridge converter 80V output 15A harddisk motor driver L293C DARLINGTON ARRAYS 3.3v Solenoid Driver Darlington 2a step down dc to dc regulator so8 push-pull converter 80V 15A 1.5A 2A voice coil Driver PDF

    L82401-P1

    Abstract: PVP134 ID31 stepper mclennan unipolar stepper motor translators PRESET VR1 10K 34hs106 42M100 Mclennan id32 stepper motor
    Text: Mclennan Servo Supplies Ltd Unit 1, The Royston Centre Lynchford Road, Ash Vale GU12 5PQ Unipolar Stepper Motor Translators User Handbook Tel – 44 08707 700 700 Fax – (44) 08707 700 699 Web – www.mclennan.co.uk Email – sales@mclennan.co.uk PM162


    Original     		PM162 MSE162 PVP134 250VAC. MSE162 PM162 L82401-P1 PVP134 ID31 stepper mclennan unipolar stepper motor translators PRESET VR1 10K 34hs106 42M100 Mclennan id32 stepper motor PDF

    SAIA-Burgess UHD 23

    Abstract: saia ufb SAIA Uhd SAIA-Burgess UHD 63 SAIA UB saia UBL UAG1 saia-burgess ufr saia UAG2 saia saia 5
    Text: Motor Products C 2000 SAIA-Burgess Electronics http://www.saia-burgess.com Motor Series - UA General values Standard data Climatic class "wide-spread" according IEC 721, part 2-1 Ambient temperature operation °C -40.+80 Ambient temperature storage °C


    Original     		PDF

    12V unipolar STEPPER MOTOR internal diagram

    Abstract: theory on 5V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR TRANSISTOR DRIVER 15 pin ic for stepper motor Driver 1N4751A L6285 L6285S PLCC44 SDIP42 circuit diagram of stepper
    Text: L6285 3 CHANNELS MULTIPOWER SYSTEM CHANNEL-A AND CHANNEL-B FOR UNIPOLAR STEPPER MOTORS – LOW SIDE: RDSON = 1.2Ω – HIGH SIDE ; RDSON = 1.2Ω CHANNEL-C FOR DC MOTORS – LOW SIDE: RDSON = 1.7Ω – HIGH SIDE: RDSON = 1.2Ω CHOPPING MODE DRIVING FOR C.L. CURRENT CONTROL ON CHA AND CHB AND


    Original     		L6285 PLCC44 SDIP42 12V unipolar STEPPER MOTOR internal diagram theory on 5V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR TRANSISTOR DRIVER 15 pin ic for stepper motor Driver 1N4751A L6285 L6285S PLCC44 SDIP42 circuit diagram of stepper PDF

    12V unipolar STEPPER MOTOR 7.5

    Abstract: theory on 5V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR 1N4751A L6285 L6285S PLCC44 SDIP42 stepper motor unipolar 12v connection d1 2a bridge
    Text: L6285 3 CHANNELS MULTIPOWER SYSTEM ADVANCE DATA CHANNEL-A AND CHANNEL-B FOR UNIPOLAR STEPPER MOTORS – LOW SIDE: RDSON = 1.2Ω – HIGH SIDE ; R DSON = 1.2Ω CHANNEL-C FOR DC MOTORS – LOW SIDE: RDSON = 1.7Ω – HIGH SIDE: RDSON = 1.2Ω CHOPPING MODE DRIVING FOR C.L. CURRENT CONTROL ON CHA AND CHB AND


    Original     		L6285 PLCC44 12V unipolar STEPPER MOTOR 7.5 theory on 5V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR 1N4751A L6285 L6285S SDIP42 stepper motor unipolar 12v connection d1 2a bridge PDF

    theory on 5V unipolar STEPPER MOTOR

    Abstract: 12V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR internal diagram 12V unipolar STEPPER MOTOR 2a "Stepper Drivers" 24V unipolar STEPPER MOTOR 5 phase dsonh PWM 555 DC MOTOR CONTROL 24V unipolar STEPPER MOTOR 555 circuit stepper motor
    Text: L6285 3 CHANNELS MULTIPOWER SYSTEM ADVANCE DATA CHANNEL-A AND CHANNEL-B FOR UNIPOLAR STEPPER MOTORS – LOW SIDE: RDSON = 1.2Ω – HIGH SIDE ; R DSON = 1.2Ω CHANNEL-C FOR DC MOTORS – LOW SIDE: RDSON = 1.7Ω – HIGH SIDE: RDSON = 1.2Ω CHOPPING MODE DRIVING FOR C.L. CURRENT CONTROL ON CHA AND CHB AND


    Original     		L6285 PLCC44 theory on 5V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR 12V unipolar STEPPER MOTOR internal diagram 12V unipolar STEPPER MOTOR 2a "Stepper Drivers" 24V unipolar STEPPER MOTOR 5 phase dsonh PWM 555 DC MOTOR CONTROL 24V unipolar STEPPER MOTOR 555 circuit stepper motor PDF

    PRESET VR1 10K

    Abstract: VR1 100K preset stepper motor 12v connection PVP134 12V unipolar STEPPER MOTOR 2a 12v DC stepper motor 12V unipolar STEPPER MOTOR 6 pin unipolar stepper motor CD4046 motor application stepper motor size 23
    Text: 4-Phase Unipolar Stepper Motor Drive Board PVP134 Technical specification: Size Mating edge connector Supply board and motor Current consumption: a) board only b) motor windings On-board auxiliary output Switching logic control inputs a) full/half step b) direction


    OCR Scan     		PVP134 32-way 5-30V PVP102B1 z-25kHz, 10kfl PRESET VR1 10K VR1 100K preset stepper motor 12v connection PVP134 12V unipolar STEPPER MOTOR 2a 12v DC stepper motor 12V unipolar STEPPER MOTOR 6 pin unipolar stepper motor CD4046 motor application stepper motor size 23 PDF