Automatic detecting and compensating circuit for single and double lamps
A detection circuit and automatic detection technology, which is applied in the direction of electric light sources, electrical components, lighting devices, etc., can solve the problems of incompatibility, sensitivity and difference of protection signals
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0017] see figure 2 , outside the virtual frame is a typical electronic ballast circuit, including DC / AC converter (including abnormal protection execution circuit), output circuit and fluorescent tube circuit, between the DC / AC converter, output circuit and fluorescent tube circuit , increasing the single and double lamp automatic detection compensation circuit of the present invention (the circuit in the dashed frame). The single and double lamp automatic detection compensation circuit is composed of abnormal signal detection circuit 1, single and double lamp detection circuit 2 and single and double lamp control circuit 3, and its abnormal protection signal is taken from the first secondary winding T of the output inductor 1B , and its specific circuit structure is: an output inductor and three windings T 1A , T 1B , T 1C , three rectifier diodes D 1 、D 3 、D 4 , a current limiting resistor R 1 , two compensating resistors R 2 , R 3 , a current sensor T 2 Two wind...
Embodiment 2
[0020] see image 3 , the electronic ballast circuit of this embodiment is the same as the previous embodiment, and the single and double lamp automatic detection compensation circuit of the present invention is inside the virtual frame; the single and double lamp automatic detection compensation circuit is also composed of abnormal signal detection circuit 1, single and double lamp The light detection circuit 2 and the single and double light control circuit 3 are composed, and the abnormal protection signal is taken from the main winding T of the output inductance 1A The common end of the surgical end and the 4 pins of the fluorescent lamp circuit is composed of: an output inductor and two windings T 1A , T 1C , three rectifier diodes D 1 、D 3 、D 4 , a current limiting resistor R 1 , two compensating resistors R 2 , R 3 , a current transformer T 2 Two windings T 2A , T 2B , a control transistor Q 1 , a filter resistor R 4 and a filter capacitor C 2 , a filament ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com