Power supply system
AssigneeSamsung Electronics Co., Ltd.
InventorsKyu Tae KIM, Byoung Chul Ko, Sung Ki Seo
Life of this patent
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Abstract
A power supply system is provided. The power supply system includes a power supply system comprises a first rectifier receiving an AC power from a first input AC power source, converting the AC power into a first DC power and outputting the first DC power to a connection node, one or more motors connected in parallel to the connection node, the motors being respectively connected to inverters converting the DC power provided from the connection node into an AC power to control the motors, and an auxiliary power source supplying a second DC power to the connection node when the supply of the first DC power is interrupted, or when an overload of the motors occurs.
Claims20
A power supply system comprising:
- a first rectifier configured to receive a first input AC power from a first input AC power source, to convert the first input AC power into a first DC power, and to output the first DC power to a connection node;
- one or more motors connected in parallel to the connection node, each of the one or more motors being connected to a respective one of one or more inverters, the one or more inverters configured to convert the DC power at the connection node into converted AC power, the one or more motors configured to receive the converted AC power;
- and
- an auxiliary power source configured to supply a second DC power to the connection node based on one or more of an interrupt in a supply of the first DC power and an overload condition of the one or more motors.
A power supply system comprising:
- a first rectifier configured to receive an AC power from a first input AC power source, to convert the AC power into a first DC power, and to output the first DC power to a connection node;
- an auxiliary power source including a battery connected to the connection node through a chopper, the auxiliary power source configured to supply a second DC power to the connection node;
- one or more motors connected in parallel to the connection node through one or more inverters, respectively;
- and
- a controller configured to,
- determine whether to provide the first DC power and the second DC power to the connection node via the first rectifier and the chopper, respectively, and
- control a frequency and an output voltage of the one or more inverters.
A power supply system comprising:
- a first rectifier connected to a connection node via a first switch, the first rectifier configured to perform AC-DC conversion on AC power generated by an AC power source to generate first DC power;
- an inverter connected to the connection node via a second switch, the inverter configured to perform DC-AC conversion on the first DC power or second DC power to generate converted AC power having one or more of a different voltage and frequency from the AC power, and to provide the converted AC power to a motor;
- and
- a controller configured to,
- selectively transmit the first DC power from the first rectifier to the connection node by closing the first switch, and
- selectively enable the inverter to convert the one or more of the first DC power and the second DC power to the converted AC power by closing the second switch.
Dependencies are inferred from the claim text.