PMS171B datasheet(49/92 Pages) PADAUK

Part #	PMS171B

Description	8bit OTP MCU with 8-bit ADC

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Manufacturer	PADAUK [PADAUK Technology.]

Direct Link	http://www.padauk.com.tw/

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49 / 92 page

PMS171B

8bit OTP MCU with 8-bit ADC

Page 49 of 92

PDK-DS-PMS171B-EN_V103 – Sep. 2, 2020

//-------Following codes can be for reference when user needs switch duty cycle ----------

//------ Switching PWM_pulse -------------------

While (1)

{

While(tm2ct!=0)

{}

//

Wait till tm2ct=0 to avoid noise

TM2B

=

PWM_Pulse_a - 1;

TM3B

=

PWM_Pulse_a + 2 * dead_zone - 1;

.delay

t_delay*2;

While(tm2ct!=0)

{}

TM2B

=

PWM_Pulse_b - 1;

TM3B

=

PWM_Pulse_b + 2 * dead_zone - 1;

.delay

t_delay*2;

}

The following figures show the waveforms at different condition.

1. The PWM waveforms in a fixed-duty cycle:

Fig. 13： Two complementary PWM waveforms with dead zones

TM2

TM3

Dead time

30us.

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