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2. John Keells IT - Wikipedia

   en.wikipedia.org/wiki/John_Keells_IT

   JKCS is a subsidiary of John Keells Holdings (JKH), which is one of the largest business conglomerates in Sri Lanka. JKCS is one of the three IT related companies operated under John Keells Holdings. These are John Keells Computer Services (JKCS), John Keells Office Automation (JKOA) Limited and John Keells Business Process Outsourcing Ltd (JKBPO).

3. Keells - Wikipedia

   en.wikipedia.org/wiki/Keells

   Keells is a Sri Lankan supermarket chain operated by Jaykay Marketing Services (Pvt) Ltd., a subsidiary of the John Keells Group. [1] Established in 1991, [1] [2] Keells has grown to operate 135 outlets across the country, positioning itself as one of the leading retail chains in Sri Lanka alongside other retailers such as Cargills, Glomark, Spar, and Arpico.

4. Power inverter - Wikipedia

   en.wikipedia.org/wiki/Power_inverter

   3-phase inverter switching circuit showing 6-step switching sequence and waveform of voltage between terminals A and C (2 3 − 2 states) To construct inverters with higher power ratings, two six-step three-phase inverters can be connected in parallel for a higher current rating or in series for a higher voltage rating.

5. Pulse-width modulation - Wikipedia

   en.wikipedia.org/wiki/Pulse-width_modulation

   Pulse-width modulation (PWM), also known as pulse-duration modulation (PDM) or pulse-length modulation (PLM), [1] is any method of representing a signal as a rectangular wave with a varying duty cycle (and for some methods also a varying period). PWM is useful for controlling the average power or amplitude delivered by an

6. Keells Food Products - Wikipedia

   en.wikipedia.org/wiki/Keells_Food_Products

   Keells Krest brand is one the 100 most valuable brands in Sri Lanka. The brand value of Keells Krest is estimated to be worth LKR1,127 million in 2022, a 12.6% growth from the previous year. [7] Keells Food Product is ranked 15th in LMD 100 second board in its 2020/21 edition. LMD 100 ranks publicly quoted companies of Sri Lanka by revenue ...

7. John Keells Holdings - Wikipedia

   en.wikipedia.org/wiki/John_Keells_Holdings

   John Keells Logistics (Pvt) Ltd. is a logistic, supply chain management and transportation management company. It is a subsidiary of John Keells. It is a recipient of the ISO 9001:2015 and ISO 45001:2018 certifications. [9] Mackinnons is one of the oldest logistic companies in Sri Lanka. It was founded by India Steamship Company in 1917.

8. Vienna rectifier - Wikipedia

   en.wikipedia.org/wiki/Vienna_rectifier

   Fig. 2: Top and bottom views of an air-cooled 10kW-Vienna Rectifier (400kHz PWM). The Vienna Rectifier is useful wherever six-switch converters are used for achieving sinusoidal mains current and controlled output voltage, when no energy feedback from the load into the mains is available.

9. Switched-mode power supply - Wikipedia

   en.wikipedia.org/wiki/Switched-mode_power_supply

   Stand-alone switched-mode power supply An adjustable switched-mode power supply for laboratory use. A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.