• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Self-oscillating electronic ballast with light attenuation for a lamp and system that includes it. The ballast comprises: - a current inverter with switching devices (Q1, Q2); - a resonant tank connected to the output of the inverter; - a current detection circuit for detecting the current flowing through the resonant tank; and - a control circuit for a control of attenuation and control of the self-start of the ballast by the own oscillation provided by the resonant tank. The system comprises: - at least one ballast according to the present invention; and - a remote control device that is adapted to generate a variable reference voltage signal and its sending to the ballast control circuit.
    公开号:ES2693583A1
    申请号:ES201631618
    申请日:2016-12-19
    公开日:2018-12-12
    发明作者:Carlos OLALLA MARTÍNEZ；Luís MARTÍNEZ SALAMERO；Ricardo BONACHE SAMANIEGO
    申请人:Universitat Rovira i Virgili URV；
    IPC主号:
    专利说明:

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    switching control, and an enable input E for the reception of an enable signal In.
    For the exemplary embodiment illustrated in Figure 1, the reference voltage circuit
    5 variable comprises a resistor Rf connected between the reference point Pr and a terminal Tth with a variable reference voltage Vth (manually or automatically, locally or remotely) in a voltage range equal to or greater than zero to carry out the attenuation control.
    The variable reference voltage circuit further comprises a low-pass filter that includes a capacitor Cf and an auxiliary switching device Qf connected in parallel between a ground connection and the reference point Pr.
    For the illustrated embodiment, the auxiliary switching device Qf is a transistor.
    15 P-channel MOSFET with its drain terminal electrically connected to the ground connection point, its source terminal electrically connected to the reference point Pr and its door terminal electrically connected to the enable input E of the flip-flop Be to receive the signal of enabling In and its switching controlled according to it.
    Additionally, the variable reference voltage circuit comprises a Zener Z diode with its cathode electrically connected to the reference point Pr and its anode electrically connected to the ground connection.
    The control circuit is configured and arranged as described above and
    25 as illustrated in Figure 1, for an exemplary embodiment, in order to carry out both an attenuation control in relation to the light emitted by the lamp F and the self-starting of the ballast.
    The operation of the ballast of the first aspect of the present invention is described below, for the exemplary embodiment illustrated in Figure 1.
    The current transformer detects the input current Is and by circulating the circulating current through the detection inductance Ls by the resistors Ra and Rb, it generates in these corresponding voltage drops associated with some electrical signals that have
    35 inverted waveforms in Ra, and not inverted in Rb.
    10
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    权利要求:
    Claims (1)
    [1]
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    同族专利:
    公开号 | 公开日
    WO2018115554A1|2018-06-28|
    ES2693583B1|2019-09-19|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    ES2079298B1|1993-10-13|1997-11-16|Univ Oviedo|CONTROL SYSTEM FOR A RESONANT CIRCUIT FOR SUPPLYING DISCHARGE LAMPS WITH ENERGY USE AND OPTIMIZED LOSSES IN SWITCHING.|
    ES2156741B1|1999-06-21|2002-02-16|Univ Oviedo|ELECTRONIC BASKET OF A SINGLE STAGE AND HIGH POWER FACTOR BASED ON A REDUCING CONVERTER AND A RESONANT INVESTOR.|
    US8803436B2|2011-05-10|2014-08-12|Lutron Electronics Co., Inc.|Dimmable screw-in compact fluorescent lamp having integral electronic ballast circuit|CN112134463A|2020-08-31|2020-12-25|杭州中恒电气股份有限公司|Full-bridge LLC resonant converter and resonant current detection method thereof|
    法律状态:
    2018-12-12| BA2A| Patent application published|Ref document number: 2693583 Country of ref document: ES Kind code of ref document: A1 Effective date: 20181212 |
    2019-09-19| FG2A| Definitive protection|Ref document number: 2693583 Country of ref document: ES Kind code of ref document: B1 Effective date: 20190919 |
    优先权:
    申请号 | 申请日 | 专利标题
    ES201631618A|ES2693583B1|2016-12-19|2016-12-19|SELF-OSCILLATING ELECTRONIC BASKET WITH LIGHTENING FOR A LAMP AND SYSTEM THAT INCLUDES IT.|ES201631618A| ES2693583B1|2016-12-19|2016-12-19|SELF-OSCILLATING ELECTRONIC BASKET WITH LIGHTENING FOR A LAMP AND SYSTEM THAT INCLUDES IT.|
    PCT/ES2017/070826| WO2018115554A1|2016-12-19|2017-12-18|Self-oscillating electronic ballast with lamp dimmer and system including same|
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