PATENT CLAIM ANALYSIS

Application Number: 16110373
Application Type: Utility
Filing Date: 2018-08
Publication Date: 2019-02
Patent Classification: ["323", "235000"]

Abstract:
A control circuit of a DC/DC converter includes: a driver turning on a switching transistor and turning off a rectifying transistor in on state, turning off the switching transistor and turning on the rectifying transistor in off state, and turning off the switching transistor and turning off the rectifying transistor in high impedance state; and a switching controller controlling the on state, the off state and the high impedance state, wherein the switching controller repeats a process including: transitioning to the off state when predetermined condition is satisfied in the on state; transitioning to the high impedance state with zero-cross of coil current flowing into an inductor as trigger in the off state; measuring variable time per cycle and transitioning to the off state with time-up as trigger; and transitioning to the on state when feedback voltage corresponding to output voltage of the DC/DC converter decreases to lower threshold voltage.

Claim (Index 2):
The control circuit of  claim 1 , wherein the switching controller includes:\n an off signal generation circuit that asserts an off signal when the predetermined condition is satisfied; a zero-cross detection circuit that asserts a zero-cross detection signal upon detecting the zero-cross of the coil current; a timer that measures time and asserts a timer signal when the variable time elapses; a frequency controller that changes the variable time to be measured by the timer; a bottom detection circuit that asserts an on signal when the feedback voltage decreases to the lower threshold voltage; and a logic circuit that transitions to the off state in response to the assertion of the off signal, transitions to the high impedance state in response to the assertion of the zero-cross detection signal, transitions to the off state in response to the assertion of the timer signal, and transitions to the on state in response to the assertion of the on signal.

Metadata:
- Claim Count in Document: 19.0
- Percentile: 96.0
- Lexical Diversity: 2.63934
- Patent Class: 323.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['14704234', '14884973', '15223565', '11716591', '15620042']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.7662673982463406
- 35 USC 102 Novelty (BERT): 0.4932136367297725
- Combined Prediction Score: 0.7389620220946838
- Mean Citation Score: 248.992398
- Max Citation Score: 264.24957
- Similarity Product: 209.6043697089136

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test