Electrical vehicle controller with programmed motor current

Details Electrical vehicle controller with programmed motor current Electrical vehicle controller with programmed motor current

1978-09-19

1980-08-12

Smith, Jr., David

Electricity: motive power systems

Battery-fed motor systems

318341, 318338, 318434, H02P 540

Patent

active

042175275

ABSTRACT:
A variable duty cycle power converter operable in a current controlled loop and having means for delivering increased load current at low duty cycles for efficient use of the switching elements in the converter. A current limit is established for maximum duty cycle which allows current flow through the power switching elements near but within the ratings of the devices. The maximum limit is programmed as a function of duty cycle to allow increased load current flow while maintaining the current through the power switching devices within ratings. As a result substantially increased current can be provided at low duty cycles without the need for using power switching devices of increased rating.

REFERENCES:
patent: 3569810 (1971-03-01), Thiele
patent: 3582746 (1971-06-01), Nye, Jr. et al.
patent: 4123692 (1978-10-01), Gilmore et al.

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