최근 검색 기록

    PWM

    Electronic circuits can contain both analogue and digital components. PWM, which stands for Pulse Width Modulation, facilitates the control of analogue devices using a digital signal. Many electrical designs use PWM for regulation, with PWM used as a way to reduce the average power that is delivered by an electrical signal by chopping it up into smaller parts. RS offer a range of PWM Controllers from a multitude of trusted brands, including ON Semiconductor, STMicroelectronics, Texas Instruments, and more.

    What do PWMs do?

    Analogue signals can be on or off, or can even be put into a position half-way between the two, whereas a digital signal has just on or off positions. Both signals appear in electronic circuits and can often be required to work together. Inputs can be converted using a DAC (digital-to-analogue converter) or an ADC (analogue-to-digital converter). PWM is available to control the output of a device: for example, PWM can convert the digital output of a microcontroller (MCU) into an analogue signal to drive the next analogue component.

    Types of PWM devices:

    • PWM Voltage Mode Controllers work by applying a control voltage (Vc) and a PWM ramp (Vramp) input.
    • PWM Current Mode Controllers add a second loop feeding back to the inductor current to create the PWM ramp.
    • PWM Switching Regulators feed the input voltage back through the PWM controller to keep the output voltage constant.

    What is a duty cycle?

    PWM signals feature two main things: frequency and a duty cycle. Duty cycle is given as a percentage (%) and refers to the amount of time the signal is on. For example, if the duty cycle is 50%, the signal is on for 50% and off for 50% of the time period. Pulse width modulation uses a rectangular pulse wave.

    Where are PWM controllers used?

    • Motors
    • LED lighting
    • Lamps
    • Heaters/HVAC
    • Electric vehicles
    • Robotics
    • Communication systems

    471 표시되는 제품 PWM

    • RS 제품 번호 753-2649
    • 제조사 부품 번호 NCP1236BD100R2G
    개당가격(2개가 1테이프안에)
    ₩1,419.40
    onsemi
    -
    32 kHz
    -
    -
    -
    -
    28 V
    500 mA
    Current
    1
    70ns
    Surface Mount
    SOIC
    70ns
    7
    Flyback
    5 x 4 x 1.5mm
    85%
    5mm
    Current Mode
    4mm
    1.5mm
    • RS 제품 번호 786-2451
    • 제조사 부품 번호 NCP3020ADR2G
    개당가격(10개가 1팩안에)
    ₩1,073.48
    onsemi
    -
    350 kHz
    5.5mA
    100µA
    100µA
    8 mA
    -
    -
    -
    -
    -
    Surface Mount
    SOIC
    -
    8
    -
    5 x 4 x 1.5mm
    -
    5mm
    -
    4mm
    1.5mm
    • RS 제품 번호 168-7318
    • 제조사 부품 번호 SG3524P
    개당가격(50개가 1튜브안에)
    ₩1,977.76
    STMicroelectronics
    -
    300 kHz
    -
    -
    -
    -
    18 V
    100 mA
    Voltage
    2
    100ns
    Surface Mount
    SOIC
    200ns
    16
    Push-Pull
    10 x 4 x 1.65mm
    45%
    10mm
    Voltage Mode
    4mm
    1.65mm
    • RS 제품 번호 620-0458
    • 제조사 부품 번호 UC2843AD8
    개당가격(5개가 1팩안에)
    ₩1,827.36
    Texas Instruments
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Surface Mount
    SOIC
    50ns
    8
    Boost, Flyback, Forward
    4.9 x 3.91 x 1.58mm
    100%
    4.9mm
    Current Mode
    3.91mm
    1.58mm
    • RS 제품 번호 178-4578
    • 제조사 부품 번호 NCP1239JD65R2G
    개당가격(10개가 1팩안에)
    ₩1,197.56
    onsemi
    -
    65 kHz
    -
    -
    -
    -
    16 V
    500 mA, 500 mA
    Current
    1
    30ns
    Surface Mount
    SOIC
    40ns
    7
    Flyback
    5 x 4 x 1.5mm
    84%
    5mm
    Current Mode
    4mm
    1.5mm
    • RS 제품 번호 620-0593
    • 제조사 부품 번호 UC3846N
    개당가격(5개가 1팩안에)
    ₩7,113.92
    Texas Instruments
    -
    500 kHz
    -
    -
    -
    -
    -
    500 mA
    Current
    2
    50ns
    Through Hole
    PDIP
    50ns
    16
    Boost, Buck, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull
    19.3 x 6.35 x 4.57mm
    50%
    19.3mm
    Current Mode
    6.35mm
    4.57mm
    • RS 제품 번호 180-8396
    • 제조사 부품 번호 ISL81401FRZ-T7A
    개당
    ₩10,396.40
    Renesas Electronics
    -
    650 kHz
    2µA
    1mA
    1mA
    6 mA
    -
    -
    -
    1
    -
    Surface Mount
    QFN
    -
    32
    -
    5 x 5 x 0.9mm
    -
    -
    -
    -
    -
    • RS 제품 번호 166-1621
    • 제조사 부품 번호 FAN6300AMY
    개당가격(2500개가 1릴안에)
    ₩746.36
    onsemi
    -
    190 kHz
    -
    -
    -
    -
    4.5 V
    150 mA
    Current
    1
    120ns
    Surface Mount
    SOP
    200ns
    8
    Flyback
    4.9 x 3.9 x 1.75mm
    -
    4.9mm
    Current Mode
    3.9mm
    1.75mm
    • RS 제품 번호 526-874
    • 제조사 부품 번호 UC2843AN
    개당가격(5개가 1팩안에)
    ₩1,981.52
    Texas Instruments
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Through Hole
    PDIP
    50ns
    8
    Boost, Flyback, Forward
    9.81 x 6.35 x 4.57mm
    100%
    9.81mm
    Current Mode
    6.35mm
    4.57mm
    • RS 제품 번호 145-8579
    • 제조사 부품 번호 SG3524N
    개당가격(25개가 1튜브안에)
    ₩2,263.52
    STMicroelectronics
    -
    300 kHz
    -
    -
    -
    -
    18 V
    100 mA
    Voltage
    2
    100ns
    Through Hole
    PDIP
    200ns
    16
    Push-Pull
    20 x 7.1 x 5.1mm
    45%
    20mm
    Voltage Mode
    7.1mm
    5.1mm
    • RS 제품 번호 181-348
    • 제조사 부품 번호 LM5022MM/NOPB
    개당가격(5개가 1팩안에)
    ₩8,569.04
    Texas Instruments
    -
    2 MHz
    -
    -
    -
    4 mA
    -
    -
    -
    1
    -
    Surface Mount
    MSOP
    -
    10
    -
    3 x 3 x 0.86mm
    -
    3mm
    -
    3mm
    0.86mm
    • RS 제품 번호 178-4732
    • 제조사 부품 번호 UC3844BNG
    개당가격(50개가 1튜브안에)
    ₩1,246.44
    onsemi
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Through Hole
    PDIP
    50ns
    8
    Boost, Flyback
    10.16 x 6.6 x 3.44mm
    48%
    10.16mm
    Current Mode
    6.6mm
    3.44mm
    • RS 제품 번호 516-5691
    • 제조사 부품 번호 MC33067PG
    개당
    ₩3,966.80
    onsemi
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Through Hole
    PDIP
    -
    16
    -
    19.55 x 6.85 x 3.43mm
    -
    19.55mm
    Voltage Mode
    6.85mm
    3.43mm
    • RS 제품 번호 126-3180
    • 제조사 부품 번호 NCP12510ASN65T1G
    개당가격(20개가 1팩안에)
    ₩755.76
    onsemi
    -
    65 kHz
    -
    -
    -
    -
    8 to 14 V
    300 mA
    Current
    1
    30ns
    Surface Mount
    TSOP
    40ns
    6
    Flyback
    3.1 x 1.7 x 1mm
    84%
    3.1mm
    Current Mode
    1.7mm
    1mm
    • RS 제품 번호 821-5168
    • 제조사 부품 번호 NCP1236BD65R2G
    개당가격(20개가 1팩안에)
    ₩1,092.28
    onsemi
    -
    70 kHz
    -
    -
    -
    -
    -
    -
    Current
    1
    70ns
    Surface Mount
    SOIC
    70ns
    7
    Flyback
    5 x 4 x 1.5mm
    85%
    5mm
    Current Mode
    4mm
    1.5mm
    • RS 제품 번호 828-7432
    • 제조사 부품 번호 AP3105KTR-G1
    개당가격(25개가 1팩안에)
    ₩515.12
    DiodesZetex
    -
    70 kHz
    -
    -
    -
    -
    -
    350 mA
    Current
    1
    100ns
    Surface Mount
    SOT-23
    250ns
    6
    -
    3.1 x 1.7 x 1.3mm
    80%
    3.1mm
    Current Mode
    1.7mm
    1.3mm
    • RS 제품 번호 921-0515
    • 제조사 부품 번호 AP3125AKTR-G1
    개당가격(20개가 1팩안에)
    ₩1,011.44
    DiodesZetex
    -
    70 kHz
    -
    -
    -
    -
    -
    350 mA
    Current
    1
    100ns
    Surface Mount
    SOT-26
    250ns
    6
    Flyback
    3.1 x 1.7 x 1.3mm
    80%
    3.1mm
    Current Mode
    1.7mm
    1.3mm
    • RS 제품 번호 812-4353
    • 제조사 부품 번호 UCC28950PW
    개당
    ₩9,080.40
    Texas Instruments
    Zero Power Detection
    1 MHz
    270µA
    -0.5mA
    5.75mA
    10 mA
    -
    -
    -
    -
    -
    Surface Mount
    TSSOP
    -
    24
    -
    7.9 x 4.5 x 1.05mm
    -
    7.9mm
    -
    4.5mm
    1.05mm
    • RS 제품 번호 714-7847
    • 제조사 부품 번호 UC3844BN
    개당가격(10개가 1팩안에)
    ₩966.32
    STMicroelectronics
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Through Hole
    PDIP
    50ns
    8
    Boost, Flyback
    10.92 x 6.6 x 3.32mm
    50%
    10.92mm
    Current Mode
    6.6mm
    3.32mm
    • RS 제품 번호 436-3305
    • 제조사 부품 번호 UC3825N
    개당
    ₩8,422.40
    Texas Instruments
    -
    1000 kHz
    -
    -
    -
    -
    -
    1.5 A
    Current, Voltage
    2
    30ns
    Through Hole
    PDIP
    30ns
    16
    Boost, Buck, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull
    19.3 x 6.35 x 4.57mm
    85%
    19.3mm
    Current Mode
    6.35mm
    4.57mm
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