SSBSC Signal Analyzer Message Frequency (Hz) 50 Hz Carrier Frequency (Hz) 500 Hz Message Signal Amplitude (Am) 1 Carrier Signal Amplitude (Ac) 1 Upload CSV, .wav, .mp3, or .mp4 Use Test Signal CSV Sample Rate (Hz): No Operation FFT (Spectrum) Amplitude Modulation (AM) Double Sideband Supressed Carrier (DSBSC) Pulse Amplitude Modulation (PAM) ...

DSBSC Signal Analyzer Message Frequency (Hz) 50 Hz Carrier Frequency (Hz) 500 Hz Message Signal Amplitude (Am) 1 Carrier Signal Amplitude (Ac) 1 Upload CSV, .wav, .mp3, or .mp4 Use Test Signal CSV Sample Rate (Hz): No Operation FFT (Spectrum) Amplitude Modulation (AM) Double Sideband Supressed Carrier (DSBSC) Pulse Amplitude Modulation (PAM) ...

  A three-phase induction motor usually has no neutral because its three-phase windings are connected in star (Y) or delta (Δ) and the currents are balanced. In a balanced three-phase system: IA + IB + IC = 0 Therefore, no neutral conductor is needed to provide a return path. Power is supplied through the three phase wires (R, Y, B) . The motor’s earth/ground wire is for safety , not for carrying normal current. So, a normal 3-phase motor can operate with 3 phase wires + earth , without neutral. In a single-phase circuit , neutral is normally needed because it provides the return path for current . For example: Phase → Load (fan/bulb) → Neutral → supply Current flows from the phase wire through the appliance and returns through the neutral wire. Why 3-phase is different In a balanced 3-phase motor, the three phase currents are displaced by 120° and their sum is zero: IR + IY + IB = 0 So the currents effectively return through the other phase conductors, and a separate ne...

PM Signal Analyzer Message Frequency (Hz) 50 Hz Carrier Frequency (Hz) 500 Hz Message Signal Amplitude (Am) 1 Carrier Signal Amplitude (Ac) 1 Phase Sensitivity (Kp) 1 Modulation Index (β) = K p × A m Upload CSV, .wav, .mp3, or .mp4 Use Test Signal CSV Sample Rate (Hz): No Operation FFT (Spectrum) Amplitude Modulation (AM) Double Sideband...

FM Signal Analyzer Message Frequency (Hz) 50 Hz Carrier Frequency (Hz) 500 Hz Message Signal Amplitude (Am) 1 Carrier Signal Amplitude (Ac) 1 Frequency Sensitivity (Kf) 1 Modulation Index (β) = K f × A m / f m Upload CSV, .wav, .mp3, or .mp4 Use Test Signal CSV Sample Rate (Hz): No Operation FFT (Spectrum) Amplitude Modulation (AM) Doub...

AM Signal Analyzer Message Frequency (Hz) 50 Hz Carrier Frequency (Hz) 500 Hz Message Signal Amplitude (Am) 1 Carrier Signal Amplitude (Ac) 1 Modulation Index = Am/Ac Upload CSV, .wav, .mp3, or .mp4 Use Test Signal CSV Sample Rate (Hz): No Operation FFT (Spectrum) Amplitude Modulation (AM) Double Sideband Supressed Carrier (DSBSC) Pulse Amplitude Modulation (PAM) ...

  HCF = Highest Common Factor GCD = Greatest Common Divisor Example: Find HCF/GCD of 12 and 18 Method 1: List the factors Factors of 12: 1, 2, 3, 4, 6, 12 Factors of 18: 1, 2, 3, 6, 9, 18 Common factors: 1, 2, 3, 6 The highest common factor is 6 . So: HCF(12, 18) = GCD(12, 18) = 6 Euclidean algorithm For larger numbers, this is faster. Find GCD of 48 and 18 : 48 ÷ 18 = 2 remainder 12 18 ÷ 12 = 1 remainder 6 12 ÷ 6 = 2 remainder 0 When the remainder becomes 0 , the last non-zero remainder is the GCD. Answer = 6 For Decimal Numbers Example: HCF of 1.2 and 1.8 Step 1: Count decimal places Both numbers have 1 decimal place. Step 2: Multiply both by 10 1.2 × 10 = 12 1.8 × 10 = 18 Step 3: Find the HCF of 12 and 18 HCF = 6 Step 4: Divide by 10 6 ÷ 10 = 0.6 HCF of 1.2 and 1.8 = 0.6 Another example: 2.4 and 3.6 Multiply by 10: 2.4 → 24 3.6 → 36 HCF of 24 and 36 = 12 Divide by 10: 12 ÷ 10 = 1.2 So, HCF = 1.2 . If the numbers have different numbers of decimal...

The speed of an induction motor depends on the frequency of the supply. A VFD (Variable Frequency Drive) controls the motor speed by changing the frequency but how does it actually change the frequency of electricity?  let us understand in simple language. The synchronous speed of the induction motor is directly proportional to the supply frequency. Synchronous speed = 120*f /N where, f is operating frequency N = number of poles If frequency increases the motor runs faster. If frequency decreases the motor runs slower. A VFD first converts the incoming AC supply into DC using a rectifier. The DC is stored in capacitor inside the VFD. After that the inverter circuit inside the VFD converts this DC back into AC but a new frequency is chosen by the chosen by the operator. For this reason, the motor receives AC at any frequency between 0 and 50 Hz or even higher. Due to this the motor speed can be controlled smoothly from zero to full speed. In such condition VFDs save a large amount o...