DC-to-DC converter with transient suppression
First Claim
1. A circuit, to suppress voltage transients for use in a DC-to-DC converter having a primary inductor, comprising:
- another circuit inductance lower than the inductance of the primary inductor;
said another circuit inductance being coupled in said circuit to be activated when a voltage of the DC-to-DC converter occurs outside a substantially predetermined range;
said another circuit inductance being further coupled so that while said circuit is in operation said another circuit inductance modifies a load current during activation.
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Accused Products
Abstract
A DC-to-DC converter includes: a first circuit to sense when the converter output voltage occurs outside a substantially pre-determined range, and a second circuit to adjust the converter load current, based at least in part, upon a signal provided by the first circuit. Alternatively, a circuit to suppress voltage transients for use in a DC-to-DC converter having a primary inductor includes: another circuit inductance lower than the inductance of the primary inductor. The another circuit inductance is coupled in the circuit to be activated when the load voltage of the DC-to-DC converter occurs outside a substantially predetermined range. The another circuit inductance is further coupled in the circuit so that it has the capability to modify the load current during activation.
36 Citations
9 Claims
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1. A circuit, to suppress voltage transients for use in a DC-to-DC converter having a primary inductor, comprising:
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another circuit inductance lower than the inductance of the primary inductor; said another circuit inductance being coupled in said circuit to be activated when a voltage of the DC-to-DC converter occurs outside a substantially predetermined range; said another circuit inductance being further coupled so that while said circuit is in operation said another circuit inductance modifies a load current during activation. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of suppressing a voltage transient in a DC-to-DC converter comprising:
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sensing when a converter load voltage occurs outside a substantially predetermined range; and adjusting a converter load current in response to a sensed load voltage being outside the substantially predetermined range; wherein adjusting the load current comprises employing an inductance to source and sink current that has an inductance smaller than the inductance of a primary inductor of the DC-to-DC converter. - View Dependent Claims (8, 9)
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Specification