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 714-7866
    • 제조사 부품 번호 VIPER12ASTR-E
    개당가격(5개가 1팩안에)
    ₩1,733.36
    STMicroelectronics
    -
    60 kHz
    -
    -
    -
    -
    730 V
    -
    Current
    -
    100ns
    Surface Mount
    SOIC
    50ns
    8
    -
    5 x 4 x 1.65mm
    16%
    5mm
    Current Mode
    4mm
    1.65mm
    • RS 제품 번호 178-4588P
    • 제조사 부품 번호 FAN65008B
    개당(릴로 공급됨)
    ₩6,079.92
    onsemi
    -
    1 MHz
    -
    -
    -
    -
    5.25 V
    10 A
    Voltage
    1
    200ns
    Surface Mount
    PQFN
    200ns
    35
    Buck
    6 x 6 x 0.75mm
    50%
    6mm
    Current Mode
    6mm
    0.75mm
    • RS 제품 번호 185-9316
    • 제조사 부품 번호 NCV1063AD100R2G
    개당가격(6개가 1팩안에)
    ₩2,231.56
    onsemi
    -
    100 kHz
    -
    -
    -
    -
    670 V
    780 mA
    -
    -
    10ns
    Surface Mount
    SOIC
    20ns
    16
    -
    10 x 4 x 1.5mm
    72%
    10mm
    Current Mode
    4mm
    1.5mm
    • RS 제품 번호 162-7708
    • 제조사 부품 번호 LM5046MH/NOPB
    개당가격(48개가 1튜브안에)
    ₩7,897.88
    Texas Instruments
    Zero Power Detection
    540 kHz
    80mA
    1.5A
    2A
    4.6 mA
    -
    -
    -
    -
    -
    Surface Mount
    HTSSOP
    -
    28
    -
    9.7 x 4.4 x 0.9mm
    -
    9.7mm
    -
    4.4mm
    0.9mm
    • RS 제품 번호 628-2860P
    • 제조사 부품 번호 UCC28C45D
    개당(튜브에 담겨 공급됨)
    ₩2,996.72
    Texas Instruments
    -
    1000 kHz
    -
    -
    -
    -
    18 V
    200 mA
    Current
    1
    20ns
    Surface Mount
    SOIC
    25ns
    8
    Boost, Flyback, Forward
    4.9 x 3.91 x 1.58mm
    50%
    4.9mm
    Current Mode
    3.91mm
    1.58mm
    • RS 제품 번호 178-4682P
    • 제조사 부품 번호 NCP12400CBAAB0DR2G
    개당(릴로 공급됨)
    ₩1,178.76
    onsemi
    -
    65 kHz
    -
    -
    -
    -
    14 V
    300 mA, 500 mA
    Current
    1
    60ns
    Surface Mount
    SOIC
    70ns
    7
    Flyback
    5 x 4 x 1.5mm
    85%
    5mm
    Current Mode
    4mm
    1.5mm
    • RS 제품 번호 249-2460P
    • 제조사 부품 번호 MIC2132YML-TR
    개당(릴로 공급됨)
    ₩4,213.08
    Microchip
    -
    1 MHz
    0.0017mA
    0.1A
    0.1A
    8 mA
    28 V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 660-8082P
    • 제조사 부품 번호 UC3844N
    개당(튜브에 담겨 공급됨)
    ₩2,207.12
    Texas Instruments
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Through Hole
    PDIP
    50ns
    8
    Boost, Buck, Flyback, Forward
    9.81 x 6.35 x 4.57mm
    50%
    9.81mm
    Current Mode
    6.35mm
    4.57mm
    • RS 제품 번호 714-7834P
    • 제조사 부품 번호 UC2844BN
    개당(튜브에 담겨 공급됨)
    ₩1,133.64
    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 786-8888P
    • 제조사 부품 번호 NCP1252CDR2G
    개당(릴로 공급됨)
    ₩1,146.80
    onsemi
    -
    550 kHz
    -
    -
    -
    -
    10 V
    500 (Source) mA, -800 (Sink) mA
    Current
    1
    22ns
    Surface Mount
    SOIC
    26ns
    8
    Flyback, Forward
    5 x 4 x 1.5mm
    65%
    5mm
    Current Mode
    4mm
    1.5mm
    • RS 제품 번호 661-5349P
    • 제조사 부품 번호 UC3843N
    개당(튜브에 담겨 공급됨)
    ₩1,910.08
    Texas Instruments
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Through Hole
    PDIP
    50ns
    8
    Boost, Buck, Flyback, Forward
    9.81 x 6.35 x 4.57mm
    100%
    9.81mm
    Current Mode
    6.35mm
    4.57mm
    • RS 제품 번호 168-5809
    • 제조사 부품 번호 VIPER12ADIP-E
    개당가격(50개가 1튜브안에)
    ₩930.60
    STMicroelectronics
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    Through Hole
    PDIP
    -
    8
    -
    9.02 x 6.1 x 2.92mm
    -
    9.02mm
    Current Mode
    6.1mm
    2.92mm
    • RS 제품 번호 660-8079
    • 제조사 부품 번호 UC3842N
    개당가격(5개가 1팩안에)
    ₩1,910.08
    Texas Instruments
    -
    500 kHz
    -
    -
    -
    -
    -
    1 A
    Current
    1
    50ns
    Through Hole
    PDIP
    50ns
    8
    Boost, Buck, Flyback, Forward
    9.81 x 6.35 x 4.57mm
    100%
    9.81mm
    Current Mode
    6.35mm
    4.57mm
    • RS 제품 번호 249-2459
    • 제조사 부품 번호 MIC2132YML-TR
    개당가격(3300개가 1릴안에)
    ₩3,637.80
    Microchip
    -
    1 MHz
    0.0017mA
    0.1A
    0.1A
    8 mA
    28 V
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    -
    • RS 제품 번호 178-4660P
    • 제조사 부품 번호 NCP1239KD65R2G
    개당(릴로 공급됨)
    ₩1,112.96
    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 178-4278
    • 제조사 부품 번호 FAN65004B
    개당가격(3000개가 1릴안에)
    ₩6,111.88
    onsemi
    -
    1 MHz
    -
    -
    -
    -
    5.25 V
    6 A
    Voltage
    1
    200ns
    Surface Mount
    PQFN
    200ns
    35
    Buck
    6 x 6 x 0.75mm
    50%
    6mm
    Current Mode
    6mm
    0.75mm
    • RS 제품 번호 791-9153
    • 제조사 부품 번호 L6566BH
    개당가격(10개가 1팩안에)
    ₩1,945.80
    STMicroelectronics
    Zero Power Detection
    300 kHz
    250µA
    480µA
    3mA
    4.6 mA
    -
    -
    -
    1
    -
    Surface Mount
    SOIC
    -
    16
    -
    10 x 4 x 1.25mm
    -
    -
    -
    -
    -
    • RS 제품 번호 162-4435
    • 제조사 부품 번호 UCC2806DW
    개당가격(40개가 1튜브안에)
    ₩20,208.12
    Texas Instruments
    -
    52 kHz
    -
    -
    -
    -
    -
    500 mA
    Current
    2
    35ns
    Surface Mount
    SOIC
    35ns
    16
    Boost, Flyback, Forward
    10.28 x 7.52 x 2.35mm
    50%
    10.28mm
    Current Mode
    7.52mm
    2.35mm
    • RS 제품 번호 162-6037
    • 제조사 부품 번호 UC3823AN
    개당가격(25개가 1튜브안에)
    ₩35,479.36
    Texas Instruments
    -
    1000 kHz
    -
    -
    -
    -
    -
    2 A
    Current, Voltage
    2
    20ns
    Through Hole
    PDIP
    20ns
    16
    Boost, Flyback, Forward, Full Bridge, Half Bridge, Push-Pull
    19.3 x 6.35 x 4.57mm
    100%
    19.3mm
    Current Mode
    6.35mm
    4.57mm
    • RS 제품 번호 178-4476P
    • 제조사 부품 번호 FAN65004B
    개당(릴로 공급됨)
    ₩8,379.16
    onsemi
    -
    1 MHz
    -
    -
    -
    -
    5.25 V
    6 A
    Voltage
    1
    200ns
    Surface Mount
    PQFN
    200ns
    35
    Buck
    6 x 6 x 0.75mm
    50%
    6mm
    Current Mode
    6mm
    0.75mm
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