PIC18F25K20-E/SO Programmable IC Chips 28/40/44-Pin Flash Microcontrollers list electronic items

PIC18F25K20-E/SO 28/40/44-Pin Flash Microcontrollers list electronic items

HALF-BRIDGE MODE In Half-Bridge mode, two pins are used as outputs to drive push-pull loads. The PWM output signal is output on the CCPx/P1A pin, while the complementary PWM output signal is output on the P1B pin (see Figure 16-5). This mode can be used for Half-Bridge applications, as shown in Figure 16-5, or for Full-Bridge applications, where four power switches are being modulated with two PWM signals

In Half-Bridge mode, the programmable dead-band delay can be used to prevent shoot-through current in Half-Bridge power devices. The value of the PDC<6:0> bits of the PWM1CON register sets the number of instruction cycles before the output is driven active. If the value is greater than the duty cycle, the corresponding output remains inactive during the entire cycle. See Section 16.4.6 “Programmable Dead-Band Delay mode” for more details of the dead-band delay operations.

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