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A braking chopper is an magnetical switch that limits the DC bus voltage by switching the braking energy to a resistor where the braking energy is converted to heat. Braking choppers are automatically activated when the actual DC bus voltage exceeds a specified level depending on the nominal voltage of the variable-frequency drive
dynamic braking A braking system that extracts energy from a moving system to bring it to rest; a dynamic braking system generally is not used to hold a position of a stationary object. dynamic demand A technique for load management on an electrical grid based on frequency measurement. dynamic programming
Schematic of an inverter using a vibrator as a chopper. In electronics, a chopper circuit is any of numerous types of electronic switching devices and circuits used in power control and signal applications. A chopper is a device that converts fixed DC input to a variable DC output voltage directly.
The term is used mostly in discourse about psychoanalysis, the psychology developed by Sigmund Freud. In general, his metapsychology represents a technical elaboration of his structural model of the psyche , [ 3 ] which divides the organism into three instances: the id is considered the germ from which the ego and the superego emerge.
Maladjustment is a term used in psychology to refer the "inability to react successfully and satisfactorily to the demand of one's environment". [1] The term maladjustment can be referred to a wide range of social, biological and psychological conditions. [2] Maladjustment can be both intrinsic or extrinsic.
Lawd "Lawd" is an alternative spelling of the word "lord" and an expression often associated with Black churchgoers. It is used to express a range of emotions, from sadness to excitement.
This glossary covers terms found in the psychiatric literature; the word origins are primarily Greek, but there are also Latin, French, German, and English terms. Many of these terms refer to expressions dating from the early days of psychiatry in Europe; some are deprecated, and thus are of historic interest.
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