Figure 1 Analog PWM circuit using triangle wave generator and comparator. In this Design Idea, we show an alternative circuit. It uses very little power, can be implemented in a small silicon area, ...

Modifications for a Dual-Device PWM Generator. It is important to note that the control voltage also changes the frequency in both circuit methods. Thus, adding an additional comparator to the ...

This circuit easily achieves 0.1% PWM accuracy. The output of the LTC6992 controls one section of a 74HC4053 triple single-pole double-throw (SPDT) analog switch whose output is switched between ...

I routed the first PWM channel out to J3 on the edge of the iCEStick so I could connect a scope probe to look at the real results. Below you’ll see the output at 50% (40 hex) and 12.5% (10 hex).

Linear Technology has unveiled a new pulse width modulation (pwm) generator with 48 independent channels. According to the IC specialist, each channel has an individually adjustable 12bit (4,096 steps ...

The circuit's output is the PWM signal used by the backlight inverter to achieve digital dimming. V CC is the inverter input (e.g., 12 V), and is also used as the supply for the PWM signal generator.

Available in a 5 x 6mm QFN package with a 4.5 to 40V input voltage range, the device features an internal PWM dimming generator that delivers dimming ratios up to 25:1. The LT3954 uses an internal 5A, ...