Arduino PWM Power Inverter Sine Wave

int gate1, gate2; gate1=6; gate2=7; void setup() { pinMode(gate1, OUTPUT); pinMode(gate2, OUTPUT); } void loop() { digitalWrite(gate1, HIGH); delayMicroseconds(500); digitalWrite(gate1, LOW); delayMicroseconds(500); digitalWrite(gate1, HIGH); delayMicroseconds(750); digitalWrite(gate1, LOW); delayMicroseconds(500); digitalWrite(gate1, HIGH); delayMicroseconds(1250); digitalWrite(gate1, LOW); delayMicroseconds(500); digitalWrite(gate1, HIGH); delayMicroseconds(2000); digitalWrite(gate1, LOW); delayMicroseconds(500); digitalWrite(gate1, HIGH); delayMicroseconds(1250); digitalWrite(gate1, LOW); delayMicroseconds(500); digitalWrite(gate1, HIGH); delayMicroseconds(750); digitalWrite(gate1, LOW); delayMicroseconds(500); digitalWrite(gate1, HIGH); delayMicroseconds(500); digitalWrite(gate1, LOW); digitalWrite(gate2, HIGH); delayMicroseconds(500); digitalWrite(gate2, LOW); delayMicroseconds(500); digitalWrite(gate2, HIGH); delayMicroseconds(750); digitalWrite(gate2, LOW); delayMicroseconds(500); digitalWrite(gate2, HIGH); delayMicroseconds(1250); digitalWrite(gate2, LOW); delayMicroseconds(500); digitalWrite(gate2, HIGH); delayMicroseconds(2000); digitalWrite(gate2, LOW); delayMicroseconds(500); digitalWrite(gate2, HIGH); delayMicroseconds(1250); digitalWrite(gate2, LOW); delayMicroseconds(500); digitalWrite(gate2, HIGH); delayMicroseconds(750); digitalWrite(gate2, LOW); delayMicroseconds(500); digitalWrite(gate2, HIGH); delayMicroseconds(500); digitalWrite(gate2, LOW); }