更新SVPWM

Signed-off-by: huhui <huhui@sharkgulf.com>

Application/FOC/svpwm.c

@@ -263,9 +263,10 @@ void SVPWM_7(alpha_beta_t *alpha_beta, float vbus, u32 PWM_half_period, phase_ti
 			break;
 	}
 	ModuleTime(&T1, &T2, PWM_half_period);
+  /*	
 	u32 ta = (PWM_half_period - T1 - T2) / 2;
 	u32 tb = ta + T1 ;
-	u32 tc = tb + T2 ;
+	u32 tc = tb + T2 ; */
 	switch(sector) {
 		case SECTOR_1: // 3
 			A_duty = (PWM_half_period - T1 - T2) / 2;
@@ -286,36 +287,36 @@ void SVPWM_7(alpha_beta_t *alpha_beta, float vbus, u32 PWM_half_period, phase_ti
 			high = C_duty;			
 			break;
 		case SECTOR_3: // 5
-			A_duty = tc;
-			B_duty = ta;
-			C_duty = tb;
+			B_duty = (PWM_half_period - T1 - T2) / 2;
+			C_duty = B_duty + T1;
+			A_duty = C_duty + T2;
 
 			low = B_duty;
 			midle = C_duty;
 			high = A_duty;			
 			break;
 		case SECTOR_4: // 4
-			A_duty = tc;
-			B_duty = tb;
-			C_duty = ta;
+			C_duty = (PWM_half_period - T1 - T2) / 2;
+			B_duty = C_duty + T1;
+			A_duty = B_duty + T2;
 
 			low = C_duty;
 			midle = B_duty;
 			high = A_duty;			
 			break;
 		case SECTOR_5: // 6
-			A_duty = tb;
-			B_duty = tc;
-			C_duty = ta;
+			C_duty = (PWM_half_period - T1 - T2) / 2;
+			A_duty = C_duty + T1;
+			B_duty = A_duty + T2;
 
 			low = C_duty;
 			midle = A_duty;
 			high = B_duty;			
 			break;			
 		case SECTOR_6: // 2
-			A_duty = ta;
-			B_duty = tc;
-			C_duty = tb;
+			A_duty = (PWM_half_period - T1 - T2) / 2;
+			C_duty = A_duty + T1;
+			B_duty = C_duty + T2;
 
 			low = A_duty;
 			midle = C_duty;