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MCP19124 датащи(PDF) 46 Page - Microchip Technology |
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MCP19124 датащи(HTML) 46 Page - Microchip Technology |
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46 / 236 page ![]() MCP19124/5 DS20005619A-page 46 2016 Microchip Technology Inc. 6.7 Slope Compensation A negative voltage slope is added to the output of the error amplifier. This is done to prevent subharmonic instability when: 1. The operating duty cycle is greater than 50%. 2. Wide changes in the duty cycle occur. The amount of negative slope added to the error amplifier output is controlled by slope compensation slew rate control bits. The slope compensation is enabled by clearing the SLPBY bit in the SLPCRCON register. REGISTER 6-9: SLPCRCON: SLOPE COMPENSATION RAMP CONTROL REGISTER U-0 R/W-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x — SLPBY SLPS5 SLPS4 SLPS3 SLPS2 SLPS1 SLPS0 bit 7 bit 0 Legend: R = Readable bit W = Writable bit U = Unimplemented bit, read as ‘0’ u = Bit is unchanged x = Bit is unknown -n = Value at POR ‘1’ = Bit is set ‘0’ = Bit is cleared bit 7 Unimplemented: Read as ‘0’ bit 6 SLPBY: Slope Compensation Bypass Control bit 1 = Slope compensation is bypassed 0 = Slope compensation is not bypassed (Default) bit 5-0 SLPS<5:0>: Slope Compensation Slew Rate Control bits SLPS (mV/µs) = 4.2785 x 1.0765N where N = the decimal value written to the SLPCRCON Register SLPS<5:0> from 0 to 63. |
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