Full Form of SMPS
Like other power supplies, SMPSs transfer power from a DC or AC power supply (often a line power supply, see "power supply") to a DC load such as a PC, converting voltage and current characteristics. Unlike linear power supplies, the pass transistor in switching power supplies alternates between low-loss, full-on, and full-off states continuously, spending very little time in high-loss transitions and wasting minimal power. A hypothetical ideal switching power supply consumes no power. Voltage regulation is achieved by varying the ratio of on-time to off-time (duty cycle). In contrast, a linear power supply regulates its output voltage by continually dissipating power in the pass transistor. A key advantage is the high electrical efficiency of switch-mode power supplies.
How does SMPS work?
Procs and cons of SMPS
Disadvantages include increased complexity, generation of high-amplitude radio-frequency energy that low-pass filters must block to avoid electromagnetic interference (EMI), and voltage ripple at the switching frequency and its harmonic frequencies. Very low-cost SMPS can couple electrical switching noise onto the mains power line and cause interference to devices connected in phase. A/V equipment. Non-power factor correcting SMPS also introduces harmonic distortion.
Environmental Studies E-Book | General Hindi E-Book | Sports E-Book For All Exams | Indian Economy E-Book |
What is the Full Form of SMPS?
Briefly describe about SMPS.
Like other power supplies, SMPSs transfer power from a DC or AC power supply (often a line power supply, see "power supply") to a DC load such as a PC, converting voltage and current characteristics. Unlike linear power supplies, the pass transistor in switching power supplies alternates between low-loss, full-on, and full-off states continuously, spending very little time in high-loss transitions and wasting minimal power. A hypothetical ideal switching power supply consumes no power. Voltage regulation is achieved by varying the ratio of on-time to off-time (duty cycle). In contrast, a linear power supply regulates its output voltage by continually dissipating power in the pass transistor. A key advantage is the high electrical efficiency of switch-mode power supplies.
How does SMPS work?
What are the advantages and disadvantages of SMPS?
Disadvantages include increased complexity, generation of high-amplitude radio-frequency energy that low-pass filters must block to avoid electromagnetic interference (EMI), and voltage ripple at the switching frequency and its harmonic frequencies. Very low-cost SMPS can couple electrical switching noise onto the mains power line and cause interference to devices connected in phase. A/V equipment. Non-power factor correcting SMPS also introduces harmonic distortion.