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 Components 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

...
Read more Read less

검색 필터링

총 14개 제품 중 1번째-14번째 제품을 조회 중
한장내 검색 결과 수
제품설명 단가 Maximum Switching Frequency Start-up Supply Current Maximum Source Current Maximum Sink Current Maximum Supply Current Output Voltage Output Current Zero Power Detection Control Method Number of Outputs Fall Time Mounting Type Package Type Rise Time
RS 제품 번호 857-8510
제조사 부품 번호ICE3B0365JFKLA1
제조사Infineon
₩1,401.20
Each (In a Tube of 2000)
수량
76 kHz - - - - - - - Current 1 30ns Through Hole PDIP 30ns
RS 제품 번호 919-8816
제조사 부품 번호ICE2A265FKLA1
제조사Infineon
₩3,551.05
Each (In a Tube of 50)
수량
- - - - - 650 V 2 A - - 1 - Through Hole PDIP -
RS 제품 번호 919-8825
제조사 부품 번호ICE2A265FKLA1
제조사Infineon
₩2,055.30
Each (In a Tube of 50)
수량
- - - - - 650 V 2 A - - 1 - Through Hole PDIP -
RS 제품 번호 462-7249
제조사 부품 번호ICE2A265FKLA1
제조사Infineon
₩4,808.10
Each (In a Pack of 5)
수량
- - - - - 650 V 2 A - - 1 - Through Hole PDIP -
RS 제품 번호 753-2955
제조사 부품 번호ICE3A1565FKLA1
제조사Infineon
₩4,247.00
Each (In a Pack of 2)
수량
100 kHz - - - - 650 V 6.1 A - Current 1 30ns Through Hole DIP 30ns
RS 제품 번호 753-2964
제조사 부품 번호ICE3BR0665JXKLA1
제조사Infineon
₩3,620.80
Each (In a Pack of 2)
수량
65 kHz - - - - 650 V 9.95 A - Current 1 30ns Through Hole DIP 30ns
RS 제품 번호 168-7402
제조사 부품 번호ICE3A1565FKLA1
제조사Infineon
₩3,606.85
Each (In a Tube of 50)
수량
100 kHz - - - - 650 V 6.1 A - Current 1 30ns Through Hole DIP 30ns
RS 제품 번호 110-7467
제조사 부품 번호ICE3BS03LJGXUMA1
제조사Infineon
₩1,819.70
Each (In a Pack of 20)
수량
73.7 kHz - - - - - - - Current 1 55ns Surface Mount DSO 150ns
RS 제품 번호 166-1149
제조사 부품 번호ICE3BS03LJGXUMA1
제조사Infineon
₩866.45
Each (On a Reel of 2500)
수량
73.7 kHz - - - - - - - Current 1 55ns Surface Mount DSO 150ns
RS 제품 번호 110-7480
제조사 부품 번호ICE3A1065ELJFKLA1
제조사Infineon
₩1,977.80
Each (In a Pack of 10)
수량
113 kHz - - - - - - - Current 1 30ns Through Hole DIP 30ns
RS 제품 번호 110-9090
제조사 부품 번호ICE2QS03GXUMA1
제조사Infineon
₩1,531.40
Each (In a Pack of 10)
수량
65 kHz 550µA - - 2.3 mA - - Yes - 1 - Surface Mount DSO -
RS 제품 번호 919-8812
제조사 부품 번호ICE3BR0665JXKLA1
제조사Infineon
₩3,475.10
Each (In a Tube of 50)
수량
65 kHz - - - - 650 V 9.95 A - Current 1 30ns Through Hole DIP 30ns
RS 제품 번호 166-0829
제조사 부품 번호ICE2QS03GXUMA1
제조사Infineon
₩767.25
Each (On a Reel of 2500)
수량
65 kHz 550µA - - 2.3 mA - - Yes - 1 - Surface Mount DSO -
RS 제품 번호 168-5881
제조사 부품 번호ICE3A1065ELJFKLA1
제조사Infineon
₩1,880.15
Each (In a Tube of 50)
수량
113 kHz - - - - - - - Current 1 30ns Through Hole DIP 30ns