सुविचार

🙏🏽 🕉️ ॐ नमः शिवाय 🕉️

सुविचार:↔️ " किसी ने सही कहा है जो गरजते हैं वो बरसते नहीं, इसलिए हमें कुछ भी करने से पहले उसकी चर्चा नही करनी चाहिए।"

Modulation of one inverter phase leg

The inverter is a power electronic converter that converts direct power to alternating power. By using this inverter device, we can convert fixed dc into variable ac power which as a variable frequency and voltage. 

Secondly from this inverter, we can vary the frequency i.e we will be able to generate the 40HZ, 50HZ, 60HZ frequencies as of our requirement.

Half-Bridge Inverter:-

The inverter is a device that converts a dc voltage into ac voltage and it consists of four switches whereas half-bridge inverter requires two diodes and two switches which are connected in anti-parallel. The two switches are complementary switches which means when the first switch is ON the second switch will be OFF Similarly, when the second switch is ON the first switch will be OFF.

Single Phase Half Bridge Inverter with Resistive Load

The circuit diagram of a single-phase half-bridge inverter with resistive load is shown in the below figure.

Half Bridge Inverter

Where RL is the resistive load, Vs/2 is the voltage source, S1 and S2 are the two switches, i0 is the current. Where each switch is connected to diodes D1 and D2 parallelly. In the above figure, the switches S1 and S2 are the self-commutating switches. The switch S1 will conduct when the voltage is positive and current is negative, switch S2 will conduct when the voltage is negative, and the current is negative. The diode D1 will conduct when the voltage is positive and current is negative, diode D2 will conduct when the voltage is negative, and the current is positive.

Case 1 (when switch S1 is ON and S2 is OFF): When switch S1 is ON from a time period of 0 to T/2, the diode D1 and D2 are in reverse bias condition and S2 switch is OFF.

Applying KVL (Kirchhoff’s Voltage Law)

Vs/2-V0=0

Where output voltage V0= Vs/2

Where output current i0 = V0/R= Vs/2R

In case of supply current or switch current, the current iS1 = i0 = Vs/2R, iS2 = 0 and the diode current iD1 = iD2 = 0.

Case 2 (when switch S2  is ON and S1 is OFF): When switch S2 is ON from a time period of T/2 to T, the diode D1 and D2 are in reverse bias condition and S1 switch is OFF.

Applying KVL (Kirchhoff’s Voltage Law)

Vs/2+V0=0

Where output voltage V0= -Vs/2

Where output current i0 = V0/R= -Vs/2R

In case of supply current or switch current, the current iS1 = 0, iS2 = i0 = -Vs/2R and the diode current iD1 = iD2 = 0.

The single-phase half-bridge inverter output voltage waveform is shown in the below figure.

Half Bridge Inverter Output Voltage Waveform

The average value of output voltage is

सुविचार

विक्रम संवत.............२०७९

मास................वैशाख

पक्ष.................शुक्ल

तिथि................पंचमी

वार................शुक्रवार

दिनांक..............६-५-२०२२

🙏🏽 🌼 शुभम मंगल 🌼

सुविचार:- " खोए हुए हम खुद हैं, और ढूंढते भगवान को हैं। "

सुविचार

विक्रम संवत.............२०७९

मास................वैशाख

पक्ष.................शुक्ल

तिथि................चतुर्थी

वार................गुरूवार

दिनांक..............५-५-२०२२

🙏🏽 🌻 भारत माता की जय 🌻

               सुविचार

                  👇

 " जो समयानुसार प्रिय वाणी बोलना नहीं जानता, वह जीभ होते हुए भी तोतला है। "

सुविचार

" चादर के मुताबिक पैर पसारने वाले को,

हाथ पसारने की नौबत नहीं आती। "

               👆

            सुविचार

🙏🏽 🌺 वंदेमातरम 🌺

विक्रम संवत.............२०७९

मास................वैशाख

पक्ष.................शुक्ल

तिथि................तृतीया

वार................बुधवार

दिनांक..............४-५-२०२२

सुविचार

विक्रम संवत.............२०७९

मास................वैशाख

पक्ष.................शुक्ल

तिथि................तृतीया

वार................मंगलवार

दिनांक..............३-५-२०२२

🙏🏽🚩 जय श्री राम 🚩

सुविचार:⏩ " हार हारने वाला को हराती है, जबकि जीतने वाले को प्रेरणा देती है। "

सुविचार

विक्रम संवत.............२०७९

मास................वैशाख

पक्ष.................शुक्ल

तिथि................द्वितीया

वार................सोमवार

दिनांक..............२-४-२०२२

🙏🏽🕉️ हर हर महादेव 🕉️

सुविचार:➡️ " सपनों में और सफलता में सिर्फ एक ही फांसला है और वह है कड़ी मेहनत का। "