PULSE-WIDTH MONITORING METHOD FOR STATIC CONVERTER Russian patent published in 2009 - IPC H02M1/08 

FIELD: physics.

SUBSTANCE: invention refers to conversion and impulse technology and can be used for DC voltage transducers, self-excited inverters, AC voltage regulators and other static converters of nonlinear regulating performance. Pulse-width monitoring method for static converter consists that modulation period sequence is specified. Reference signal is swept for each modulation period as a various amplitude reference pulse packet then compared to control signal thus forming driving pulse through power keys of static converter for each modulation period within constant-sign interval for reference signal and driving signal difference. The object in view is ensured as follows. Reference voltage scale ranked in ascending order U₁<U₂<...<U_i<...U_N is formed within driving signal range. Saw-toothed ancillary signal of amplitude U_N is swept for modulation period. N discrete readings of reference signal sweep S₀(Δτ),S₀(2·Δτ),...,S₀(j·Δτ),...,S₀(N·Δτ) is specified on reference voltage scale. N rectangular reference pulses are packed while reproduction of polyadic N-ary logic operations of predicate algebra from choice v(y₁, K, y_n)=y₁·α₁+y₂·α₂+K+y_i·α_i+K+y_N·α_N, when discrete readings S₀(j·Δτ) are identified with object variables y_i and formation of time sequence of binary values {0,1} of combined weight factors satisfying to complementarity conditions α₁+α₂+K+α_i+K+α_N=1, are formed by comparing saw-toothed ancillary signal to reference voltages, thus enabling switching permutation between object variables and discrete readings y_i↔ S₀(j·Δτ) and separating smooth component of reference signal sweep.

EFFECT: enhancement.

3 dwg